#raspberrypi IRC Log

Index

IRC Log for 2015-01-17

Timestamps are in GMT/BST.

[0:01] * Datalink__ (Datalink@unaffiliated/datalink) has joined #raspberrypi
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[0:09] <Encapsulation> why cant the pi see the device?
[0:11] * Encrypt (~Chuck-nor@AMontsouris-553-1-61-70.w92-151.abo.wanadoo.fr) Quit (Quit: Sleeping time!)
[0:11] <shiftplusone> if the device doesn't show up in i2cdetect, you've got other issues.
[0:12] <shiftplusone> most likely suspect would be pin configuration or the way it's wired up
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[0:16] <HoloPed> Anyone using an Arduino as a voltage regulator for a PI ?
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[0:21] <plugwash> HoloPed, you mean using the onboard voltage regulator on an arduino to power the Pi?
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[0:26] * plugwash looks up the regulator on the arduino (uno), seems it's rated at 800ma which may be just about enough to run a Pi
[0:26] <plugwash> BUT
[0:29] <plugwash> at higher input voltages you are likely to have thermal problems. I doubt the arduino has the heatsinking required for a regulator running at say 12V input (which means 7V drop in the regulator) and the hundreds of milliamps drawn by a Pi
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[0:32] <Encapsulation> I'm just not sure why I cant see this i2c device
[0:32] <Encapsulation> maybe arch linux just sucks, I bet this would be working on debian
[0:33] * basti (~basti@p57BDF67A.dip0.t-ipconnect.de) Quit ()
[0:33] <Encapsulation> i2c_dev
[0:33] <Encapsulation> i2c_bcm2708
[0:33] <Encapsulation> both loaded
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[0:40] <shiftplusone> Encapsulation, Arch definitely does not suck.
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[0:43] <Encapsulation> everything I've read suggests I should be seeing this board
[0:43] <Encapsulation> vcc to 5v gpio 2 + 3 to sda + sdl
[0:43] <Encapsulation> vcc sda sdl on the board, 5v gpio 2 gpio 3 pi
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[0:44] <shiftplusone> 5v what now?
[0:44] <shiftplusone> you sir, are frying your pi
[0:45] <Encapsulation> doubtful
[0:45] <Encapsulation> Ive heard a lot about that but havent seen it
[0:46] <shiftplusone> okay then
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[1:04] <Encapsulation> does this board need to share a ground with the pi
[1:04] <Encapsulation> there isnt one labeled on the board
[1:05] <plugwash> are you trying to power the board from the Pi?
[1:06] <Encapsulation> yes
[1:06] <Encapsulation> I'm thinking now this must be the issue
[1:07] <Encapsulation> I need to hook up ground somewhere on this board
[1:07] <plugwash> got a picture of the board?
[1:07] <Encapsulation> yes
[1:07] <Encapsulation> http://www.sparkyswidgets.com/portfolio-item/miniph-i2c-ph-interface/
[1:08] <Encapsulation> https://www.sparkyswidgets.com/wp-content/uploads/MinipH_TND_tmb1.png eagle schematics and pcb there too
[1:10] <plugwash> it looks like there are two places where you can pick up the connections, one at the right in the board photo and one at the bottom in the board photo
[1:10] <Encapsulation> yes I beleive the ones on the side are analog out and the ones on the end are the digital
[1:11] <Encapsulation> for arduino or raspberry
[1:12] <Encapsulation> the one usage picture they show seems to confirm that
[1:13] <Encapsulation> looking at hte board that seems logical because of the traces
[1:13] <plugwash> I think I see a label GND (common abbreviation for ground) on the group of connectors at the bottom of the picture. On the group at the right of the picture there seems to be an unlabeled pin which I strongly suspect is ground, especially as it looks to be connected to a copper pour on the PCB
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[1:17] <Encapsulation> yes, you're right. there is a gnd pin on the analog output pin group. I suppose I need to connect that to ground on the pi and this will work as expected
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[1:20] <Encapsulation> I just need to figure out now if I should power it with the 5v or 3.3v pin. I read that the ph board uses 3.3v but I think this ec board uses 5v due to how the technology works
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[1:21] <Encapsulation> There was something I heard about 5v pin powering things damaging the pi but I'm not sure I believe it. I'm fairly certain I have another pi running a relay board from the 5v pin right now with no issues
[1:23] <plugwash> What damages the Pi is driving 5V IN to a GPIO line with sufficiently high current.
[1:24] * Delboy (~openwrt@183-31.dsl.iskon.hr) Quit (Ping timeout: 246 seconds)
[1:25] <plugwash> I suspect in the relay board case you only had outputs on the Pi driving inputs on the relay board not vice-versa
[1:25] <shiftplusone> which you will be doing, assuming the board has pull up resistors pulling gpio up to vcc.
[1:25] <Encapsulation> correct, so there is no damage powering devices from the 5v pin?
[1:25] <shiftplusone> you will be damaging the pi in this case, but you ignored that warning before, so I figured you don't car.e
[1:26] <Encapsulation> why would it damage the pi
[1:26] <Encapsulation> if the supply connected has sufficient current
[1:26] <shiftplusone> it's not about the 5v line, it's about the sda and scl lines
[1:26] <Encapsulation> the page claioms the board works with pi unmodified
[1:26] <plugwash> Encapsulation, the problem is when you power something off 5V it tends to start producing signals at 5V unless you are very careful to avoid it
[1:28] <plugwash> you might get away with it with I2C because the board never drives hard high, it only pulls high with a relatively high impedance and it's only a couple of lines, so the energy dumped into the ESD diodes in the SoC is fairly low
[1:29] <shiftplusone> Encapsulation, i2c pins typically aren't capable of driving an output high, only low. The way the pins are driven high is through a pull up resistor. I don't want to download Eagle to check the schematic for the board, but those pull-up lines are probably connected to VCC, so when you connect VCC to 5V, you also connect SDL and SCL to 5V.
[1:29] <shiftplusone> *SDA
[1:30] <shiftplusone> It will work, but it's stupid when you have the option of doing it the right way.
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[2:13] <gregd> hello everyone, can someone remind me how do I marry up firmware branch with kernel branch, where are the MD5 sums for respective branches?
[2:14] <shiftplusone> sec
[2:15] <shiftplusone> https://github.com/raspberrypi/firmware/blob/master/extra/git_hash
[2:15] <shiftplusone> that will tell you which kernel was used
[2:15] <gregd> git_hash! here we go :
[2:15] <gregd> :)
[2:15] <gregd> thanks!
[2:15] <shiftplusone> n
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[3:51] <Encapsulation> shiftplusone, how do you define the right way?
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[3:54] <plugwash> it depends, you really need to find the datasheet for the chip you are interfacing to in order to figure out what your options are
[3:55] <plugwash> you may be able to run the whole system at 3.3V, depending on the input thresholds of the device you are interfacing to you may be able to run the device at 5V but with pullups to 3.3V since I2C is open collector
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[3:56] <Encapsulation> I think it said the chip runs at 3.3 to 5v
[3:57] <Encapsulation> 3.3v for ph but use 5v for the ec because it generates the square wave ac into the solution
[3:57] <Encapsulation> or something like that
[3:57] <Encapsulation> I just connected ground to ground vcc to 3.3v on pi and sdl and sda and it's showing up in i2cdetect now
[3:58] * kiely_elsewhere is now known as kiely
[3:58] <linix> am using ubuntu to connect to this channel with xchat and no errors. tried connecting with my rpi using xchat and it goes forever without connecting, any idea what i might be missing? the rpi is connected to the internet.
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[4:00] <plugwash> if neither of those are workable options for your particular device you can level shift I2C with a couple of FETs, see http://www.nxp.com/documents/application_note/AN10441.pdf
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[4:04] <plugwash> hmm http://www.adafruit.com/datasheets/an97055.pdf seems a better ref for the I2C level shifting, since it actually has suggestions of suitable mosfets
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[4:59] <tolland> how long can a pi cobbler cable reasonably be? I mean I have a 1.2m ribbon cable, is that going to be negligible given the digital pins, or is that going to affect things
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[5:03] <shiftplusone> depends on the quality of the cable and the type/speed of signal you're driving
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[5:24] <undecim> How might I go about controlling 20 RGB Leds (i.e. 60 Leds) with my Pi?
[5:26] <undecim> I know there's not enough pins for it. What kind of cheap hardware would i need to add? Are the USB dongles for this sort of thing?
[5:26] <undecim> Are there*
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[5:40] <uhhimhere> undecim you could buy a mux chip
[5:40] * nicdev (user@2600:3c03::f03c:91ff:fedf:4986) has joined #raspberrypi
[5:40] <undecim> uhhimhere, Any recommendations?
[5:40] <uhhimhere> alibaba
[5:40] <shiftplusone> eew
[5:41] <shiftplusone> two of these should do it http://www.ti.com.cn/cn/lit/ds/sbvs146c/sbvs146c.pdf
[5:41] <shiftplusone> I haven't taken a look at the datasheet itself, but the title sounds right
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[5:44] <undecim> 12 channels would only power 4 RGB leds?
[5:45] <xxValiumxx> undecim have you already purchased the LEDs?
[5:45] <undecim> xxValiumxx, I have not
[5:45] <xxValiumxx> then my suggestion would be to purchase WS2812 LEDs
[5:46] <xxValiumxx> they use a serial protocol, and you'll only need a single line.
[5:46] <xxValiumxx> HOWEVER
[5:46] <xxValiumxx> the caveat is that the pi won't really do it on it's own
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[5:46] <undecim> xxValiumxx, A single line per LED?
[5:46] <xxValiumxx> no, one total
[5:46] <undecim> O_O
[5:47] <xxValiumxx> you daisy chain them
[5:47] <xxValiumxx> but like I was saying, at minimum you would need to get some sort of microcontroller to drive them.
[5:47] <xxValiumxx> the timing is on the order of nanoseconds.
[5:48] <undecim> The Pi has nothing that can be used for a serial connection?
[5:48] <shiftplusone> Whoops, the number of pins should've been a giveaway, sorry.
[5:48] <xxValiumxx> its not rs232 serial
[5:48] <shiftplusone> undecim, do you need the PWM part or do you need to just have them on or off?
[5:48] <xxValiumxx> its A serial protocol, but no rs232.
[5:49] <xxValiumxx> undecim here. https://www.youtube.com/watch?v=IhA274LqcyM
[5:50] <xxValiumxx> I'm using one pin from a microcontroller.
[5:50] <undecim> I guess with a resolution of .001 seconds would work? They're going to be simulating flames, or similar effects behind a pepper's ghost
[5:50] <shiftplusone> The way we've done the astro-pi board is that we have an attiny88 doing softpwm and showing a line at a time.
[5:50] <xxValiumxx> it has a usb connection that shows as a serial port.
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[5:50] <xxValiumxx> ohh a pepper's ghost effect. I always loved those.
[5:50] <shiftplusone> (and there's a driver chip to handle one row at a time)
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[5:51] <xxValiumxx> undecim mind if I throw some links your way?
[5:51] <undecim> xxValiumxx, please do
[5:52] <xxValiumxx> https://www.pololu.com/product/2549
[5:52] <undecim> xxValiumxx, You think a full screen clock on a 7" display will be readable with peppers ghost if there is some flame effects in the bg?
[5:52] <undecim> I've never done the trick before
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[5:52] <xxValiumxx> Hard to say.
[5:53] <xxValiumxx> http://store.arduino.cc/product/A000053
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[5:53] <xxValiumxx> those 2 items, and a power supply should do it.
[5:53] <undecim> I've got an Arduino Uno. I'd hate to use that AND a raspi on this project
[5:53] <xxValiumxx> you don't have to use an arduino, cheaper options are of course available, but may not be as simple to use
[5:54] <xxValiumxx> the issue is the timing, as I said.
[5:54] <xxValiumxx> as it stands, even on arduino you have to disable the interrupts and use assembly to drive the strips.
[5:55] <undecim> I dont need quite so many LEDs. But I know what to look for now.
[5:55] <xxValiumxx> the raspi being a multi tasking computer simply can't achieve the accuracy reqired.
[5:55] <xxValiumxx> well, you can cut that strip up
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[5:55] <undecim> xxValiumxx, Yeah, I saw that. I might just keep the extras around for other stuff
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[5:56] <xxValiumxx> I was simply presenting the micro as an option as a USB device that can drive a strip of LEDs
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[5:57] <xxValiumxx> which, honestly, given the apparent sensitivity of the GPIO pins on the raspi, I wouldn't risk it, personally; but thats just me, and I'm new to the pi.
[5:57] <Xark> undecim: Also, there are newer style strips that talk "normal SPI" so can be hooked up directly to Raspberry Pi (or use other MCU SPI) -> https://www.adafruit.com/categories/340
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[5:58] <xxValiumxx> Xark comes in to save the day. :P
[5:58] <undecim> Xark, That sounds about like what I'm looking for
[5:58] <xxValiumxx> the words from his mouth will serve you better than the ones from my arse.
[5:58] <Aldem> Hello ppl
[5:58] <undecim> So basically, I can connect this whole strip with 2 wires? https://www.adafruit.com/products/2239
[5:58] <xxValiumxx> bookmarking those.
[5:58] <Aldem> I'm a big fan of audio things
[5:59] <xxValiumxx> that makes you an audiophile
[5:59] <Aldem> Any cool audio related project for a Rb⁺ ?
[5:59] <xxValiumxx> b- ?
[5:59] <Aldem> And how the hell did I do that + ?
[5:59] <xxValiumxx> same way I do × and ÷ ?
[5:59] <Aldem> No, the B+
[6:00] <Aldem> I can't even reproduce it lol
[6:00] <Aldem> Anyway, any ideas for audio related prjects ?
[6:00] <xxValiumxx> ah well.
[6:00] <xxValiumxx> I was looking into a tonebank project for a usb midi keyboard
[6:00] <xxValiumxx> so theres that
[6:01] <Aldem> Cool
[6:01] <xxValiumxx> I don't even know if the audio is working on mine, frankly.
[6:01] <Aldem> I hesitated a long time between an Arduino and the rasp
[6:01] <xxValiumxx> I haven't heard any sounds from it
[6:01] <Aldem> Chose the rasp
[6:01] * Xark notes, like NeoPixel DotStar is also a name made up name by Adafruit, other vendors call them APA102 -> https://cpldcpu.wordpress.com/2014/08/27/apa102/
[6:02] <Encapsulation> what is the easiest way to read adc data via i2c?
[6:02] <Xark> undecim: Yes, I believe so, check out https://learn.adafruit.com/adafruit-dotstar-leds
[6:03] <Xark> undecim: (Has a RPI python example too)
[6:03] <undecim> IRC > google
[6:04] <undecim> Thanks for the links, Xarx. This is exactly what I've been looking for
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[6:04] <Xark> undecim: OK, looks like you need a simple level shifter to convert 3.3v to 5v (like https://www.adafruit.com/product/1787 )
[6:04] <Xark> undecim: No problem. I have been wanting to order some LEDs like this, but have been too busy with other things (and have meters of the "old" kind to use). :)
[6:05] <undecim> Xark, can't I just supply my own 5v to the 5v pin?
[6:06] <Aldem> https://www.hifiberry.com/2014/07/why-your-new-raspberry-pi-b-still-needs-a-hifiberry-sound-card/
[6:06] <Xark> undecim: It is not for power, but to convert 3.3v SPI from Raspberry Pi to 5v expected by strip -> "For low-voltage microcontrollers and systems such as Raspberry Pi, a logic level shifter (e.g. 74AHCT125) is recommended for both the data and clock pins."
[6:06] <Aldem> Hrm
[6:07] <undecim> Xark, okay
[6:07] <Xark> undecim: The tutorial mentions you might get away with out it (since 3.3v will not hurt 5v inputs), but it may not work (or be totally reliable without).
[6:08] <Xark> ^not be
[6:08] <undecim> Xark, I'll spend the $1.50 to be sure...
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[6:09] <Xark> undecim: Seems a good decision. :)
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[6:28] <uhhimhere> undecim: so what did you go with?
[6:29] <undecim> Definitely the DotStar RGB Leds
[6:29] <undecim> i'm looking at other parts before I order everything
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[6:40] <k-man> ni
[6:40] <k-man> which pins on the gpio of the b+ is the serial port on?
[6:41] <uhhimhere> muxes should be the cheapest option,i reckon; have 3 mux "banks" one for each color.
[6:42] <uhhimhere> no protocols nothing just a chip select value for each led
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[6:47] <uhhimhere> of course you would need to provide power for the leds
[6:47] <undecim> uhhimhere, would I be able to pwm?
[6:48] <Xark> undecim: How many LEDs do you want to control? That might work for a few, but unlikely to work for a long strip...
[6:49] <undecim> I'm looking for about 20 RGB Leds
[6:49] <uhhimhere> do you want the ability to control duty cycle on each led or are they all running same duty?
[6:49] <Xark> undecim: Get a smart strip (especially from RPi) IMHO. :)
[6:49] <undecim> They would certainly require different duties
[6:51] <uhhimhere> yeah then a mux probably wouldnt work; the way it works is, for a demux you have 1 signal in and x number out so your just switching the signal do different outputs(or all) but its still the same input being switched(alot like a switchboard)
[6:51] <undecim> I talked to my brother and he's interested in having some smart strip leds on hand, so I'm gonna get the 144 strip
[6:53] <undecim> new question: Can I suppress all video output until I enabled from Python?
[6:53] <undecim> (using composite out)
[6:54] <undecim> Right now, my plan is to control power to the display, so that the raspberry and early boot messages dont show up when the thing powers on
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[6:56] <undecim> Any tips on that method would be appreciated also. I'm a hardware noob, so I'm pretty much just running on Google right now. The power for the display is 12V DC. I already have the display and power supply
[6:56] <uhhimhere> why the pi over arduino?
[6:56] <uhhimhere> they have alot more shields etc that can do this kind of stuff ...automation
[6:56] <undecim> I want it to be Python programmable
[6:57] <undecim> It's a gift to a house with 3 young programmers that might want to play with visual effects code
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[6:58] <uhhimhere> http://www.instructables.com/id/Interface-Python-and-Arduino-with-pySerial/
[6:59] <undecim> Cool. I just need to add a small computer to that, and I'm good to go
[7:00] <uhhimhere> well either you add the computer to the I/O or you add the I/O to the computer
[7:00] <undecim> Or I just get the LED strip
[7:01] <undecim> The LED strip is going to be less prone to my own screw ups
[7:01] <undecim> How can I screw up 4 wires?
[7:03] * lazy_prince is now known as killer_prince
[7:09] <uhhimhere> undecim: "Like NeoPixels, DotStar LEDs are 5050-sized LEDs with an embedded microcontroller inside the LED. You can set the color/brightness of each LED to 24-bit color (8 bits each red green and blue). Each LED acts like a shift register, reading incoming color data on the input pins, and then shifting the previous color data out on the output pin. By sending a long string of data, you can control an infinite number of LEDs, just tack on more or cut
[7:09] <uhhimhere> off unwanted LEDs at the end. The PWM is built into each LED-chip so once you set the color you can stop talking to the strip and it will continue to PWM all the LEDs for you"
[7:09] <undecim> yup
[7:10] <undecim> How long should it take the Pi to write a strip of 20?
[7:10] <undecim> Or I suppose I could split it up into smaller strips?
[7:11] <undecim> Oh, there's only 1 serial pin...
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[7:11] <uhhimhere> i dont know how long would it take you to get your head around that SPI protocol and the whole shift register thing?
[7:12] <undecim> uhhimhere, I (roughly) understand SPI and shift register
[7:13] <uhhimhere> ok well then you should be alright
[7:13] <undecim> I'm just trying to figure out what kind of refresh rate I can get
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[7:14] <uhhimhere> it says 400hz
[7:16] <uhhimhere> sorry 20khz
[7:16] <undecim> That's just the pwm freq
[7:16] <undecim> Though I see now that it says data transfer rate is 32 MHz
[7:17] <uhhimhere> i thought you mean visual refresh rate
[7:17] <uhhimhere> how often the colors change
[7:17] <undecim> yes
[7:18] <undecim> e.g., I want to know how long it would take for the strip to go from all Red to all Green
[7:19] <undecim> Can't be more than 32 bits per pixel... 32MHz means 32 Mbits, right (one per clock cycle)? so about 1KHz? Sounds like plenty, plenty, plenty to me
[7:20] <uhhimhere> then the determining factor would be the lowest of the two ie you can send commands at 32 MHZ but the physical drivers can only drive at 20khz
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[7:20] <uhhimhere> thats my guess i havent used these things be4
[7:20] <undecim> uhhimhere, The guide specifically says you can get 32 MHz data rate with Raspi
[7:21] <uhhimhere> yeah but is data rate = LED refresh rate?
[7:21] <undecim> No, it's the number of SPI clock cycles per second
[7:22] <undecim> And thus the number of bits per second
[7:22] <undecim> (I believe)
[7:22] <uhhimhere> can the LEDs switch all red to all blue every 1/34E6 seconds when the PWM driver can only go as fast as 1/20E3 ?
[7:22] <undecim> It's 8 bits per channel
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[7:22] <undecim> And 3 channels
[7:23] <undecim> And I threw in 8 more to account for whatever overhead there might be (idk what), and make it even 32 for easy math
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[7:23] <undecim> That's 1K whole-strip color changes per second
[7:24] <undecim> About 20 PWM cycles
[7:24] <undecim> Correction
[7:24] <undecim> 1k pixels per second
[7:25] <undecim> so for a 20-strip, it's 50Hz
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[7:25] <undecim> Roughly the refresh rate of a typical computer monitor
[7:28] <uhhimhere> sounds like you have it all figured out
[7:28] <undecim> Well, I type it all here in hopes that someone might correct me if I'm wrong
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[9:56] * jazzzu (~jazzzu@D97B7B1C.cm-3-4b.dynamic.ziggo.nl) Quit (Ping timeout: 252 seconds)
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[9:59] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) Quit (Remote host closed the connection)
[10:05] * ApolloJustice is now known as DogeAIIndia
[10:05] * DogeAIIndia is now known as ApolloJustice
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[10:27] * IndiAI is now known as ApolloJustice
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[11:56] <frank1e> hey folks
[11:57] <x29a> sup
[11:57] <frank1e> guys I've got a concept for my making my personal computers 100% theft proof and could use some smart heads
[11:57] * ShorTie snickers
[11:58] <x29a> solution a: dont own a personal computer
[11:58] <frank1e> I'd like to attach a small device like a small flash device or a RPi which obviously runs it's own OS besides the regular OS from the computer
[11:58] <ShorTie> or keep it in Fort Knox maybe
[11:58] <frank1e> this device is being hidden as good as possible within the case, letting it blend in (that's another problem)
[11:59] * djhworld (~djhworld@176.252.101.227) has joined #raspberrypi
[11:59] <x29a> frank1e: so someone steals your computer AND your device?
[11:59] <frank1e> the idea in detail is that it is being able to send me the current IP and position at all times, even if the regular HDDs are being wiped/ditched by the thiefes.
[12:00] <frank1e> like a cheap phoning-back device for tracking.
[12:00] <frank1e> running all the time when the computer is being connected to the powersource.
[12:01] <ShorTie> how about moving to a better nieghborhood where thief is not a problem ??
[12:01] * Datalink_ (Datalink@unaffiliated/datalink) has joined #raspberrypi
[12:02] <frank1e> please just keep it serious
[12:02] * skyroveRR (~skyroveRR@unaffiliated/skyroverr) has joined #raspberrypi
[12:02] <frank1e> these things are currently not an option and don't matter. let's just keep it on the idea in general please
[12:03] <ShorTie> what makes you think i'm not ??
[12:03] <frank1e> the question does not contribute to the idea.
[12:03] <frank1e> and does not really help.
[12:03] <x29a> ShorTie: really man, keep it serious
[12:04] <x29a> ...
[12:04] <ShorTie> �k�� ��K��
[12:04] <x29a> frank1e: laptops feature such a device where you can monitor its position, its updated via the modem
[12:04] <ShorTie> so how is this thing gonna 'report back' ??
[12:04] <ShorTie> thru the internet ??
[12:04] <x29a> frank1e: furthermore, it already got stolen, so what?
[12:04] <frank1e> x29a right now I'm just focusing on a classic computer with a regular case
[12:05] * Datalink__ (Datalink@unaffiliated/datalink) Quit (Ping timeout: 265 seconds)
[12:05] <frank1e> shortie that's another chapter. could use a stripped apart smartphone
[12:05] <frank1e> but then again that's a big too much to "hide"
[12:05] <x29a> its not 100% theft proof. youd need to make the et-device (call home) so little that it is not noticed, on the other hand provide power and good reception
[12:06] <x29a> there are umts sticks for usb and such, you know
[12:06] <frank1e> okay
[12:06] <Encrypt> So, the idea basically would be to do a cloud thing, right?
[12:06] <ShorTie> smart phone in a steel box, that should work good
[12:06] <Encrypt> Or am I wrong?
[12:06] <frank1e> in general I'm thinking about hiding such a thing behind the mainboard maybe, that would be the easiest.
[12:06] <frank1e> shortie yes a smartphone was a bit of a dumb idea.
[12:09] <x29a> Encrypt: keep it serious man
[12:09] <frank1e> to describe "100% theft proof" a bit further: If someone steals the PC, takes a look inside the case, maybe takes out the hdds and replaces them, it has to be invisble on the first look
[12:09] <Encrypt> x29a, I'm just asking a question
[12:09] <ShorTie> how about hacking into the bios and sticking sumfin in there
[12:09] <Encrypt> I haven't understood the concept
[12:09] <x29a> Encrypt: and im just kidding
[12:10] <Encrypt> :p
[12:10] <frank1e> My english isn't the best so it's not always easy describing everything understandable. but I try my best :)
[12:10] <x29a> frank1e: seriously, who would steal a pc? and why would you add another $80 in surveilance equipment? will you drive up to the place where the gangster are sitting on your machine doing chatroulette?
[12:11] <x29a> frank1e: if in doubt, id be more concerned about the data, so the device should trigger a secure wipe of the hdd and maybe destroy the bios with a bogus firmware
[12:11] <frank1e> securing personal data isn't the hardest and already done
[12:11] * ShorTie snickers
[12:12] <frank1e> hardware has been stolen in the past from me which obviously was unable to recover. that's my basic motivation.
[12:12] <frank1e> and now I'm just thinking of how to do this, maybe with a RPi because it's cheap and small.
[12:12] <ShorTie> motion detector attached to c4 maybe ??
[12:13] <frank1e> ..
[12:14] <x29a> frank1e: the rpi itself does not feature any modem or such, id say there is better devices for your purpose
[12:14] <x29a> e.g. http://extremeelectronics.co.in/avr-tutorials/gsm-module-sim300-interface-with-avr-amega32/
[12:15] * UKn0Me (~UKn0Me@CPE-124-182-138-102.lns5.pie.bigpond.net.au) has joined #raspberrypi
[12:15] <ShorTie> or use the pi and it's camera for a sequity device to record who ever is steeling it maybe
[12:16] <ShorTie> and a little gps thingy, like they put in pets, to keep track of it
[12:16] <x29a> _in_ pets?
[12:16] <ShorTie> ya
[12:16] <ShorTie> dogs, cats, ......
[12:18] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
[12:20] <pksato> hide computer on some place. or make a heavy (ton of kg) pc case.
[12:26] * Encrypt (~Chuck-nor@AMontsouris-553-1-61-70.w92-151.abo.wanadoo.fr) Quit (Quit: Eating time!)
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[12:32] * mgottschlag (~quassel@reactos/tester/phoenix64) Quit (Ping timeout: 255 seconds)
[12:32] <frank1e> and a little gps thingy <--- this
[12:32] <frank1e> mmmhh
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[12:51] <giddles> so hello again, i got a certain problem with motion using my raspberry pi. if i start motion and be logged in the shell everthing is fine and a command is executed within On_event_start wput -b ftp://xyz %f ... if i close the shell its not working .. is there the coherence where my failure starts?
[12:53] <giddles> i'am at the end of my latin...
[12:53] <ShorTie> sounds like when you close your shell it shuts down motion
[12:53] <giddles> ahh
[12:54] <ShorTie> try running it in like screen session maybe
[12:54] <giddles> is there a command for to keep it on?
[12:54] <arpi> yes. screen or better yet tmux
[12:54] <giddles> it runs in screen
[12:54] <giddles> but i cant let the a machine running only to let the shell be open
[12:54] <arpi> is wput in PATH?
[12:54] <giddles> yes
[12:55] <giddles> it works very fine
[12:55] <giddles> after some starting problems ;)
[12:55] <arpi> what do the logs say™?
[12:55] <giddles> nothinG ;) so <ShorTie> sounds like when you close your shell it shuts down motion <-- sounds great
[12:56] <giddles> could i open it in rc.local ? with some delay command?
[12:56] <arpi> motion && echo "i was shut down" >> /tmp/important.log
[12:56] * Mikelevel (~MoVeWoRk@unaffiliated/mikelevel) Quit (Read error: Connection reset by peer)
[12:56] <arpi> this will execute the second command as soon as the motion process terminates
[12:56] <ShorTie> don't think your understanding what screen is
[12:57] <arpi> or that
[12:57] <giddles> so please enlight me ;)
[12:57] <ShorTie> https://www.debian-administration.org/article/34/Using_GNU_Screen
[12:58] * eru (~neutrino@unaffiliated/electron/x-8286743) has joined #raspberrypi
[12:58] <arpi> apt-get update && apt-get install -y screen && screen motion
[12:58] <arpi> that's it
[12:58] <giddles> ill try when it has rebootet ;)
[13:00] <giddles> if english is not your home language its just horrible ;)
[13:01] <giddles> so after installing i have to confing something?
[13:01] <arpi> no. you just run "screen command"
[13:01] <arpi> and it stays open even after the tty has gone
[13:02] * ApolloJustice (~Apollo@unaffiliated/apollojustice) Quit (Ping timeout: 244 seconds)
[13:02] <giddles> public key not available :D
[13:03] * ApolloJustice (~Apollo@unaffiliated/apollojustice) has joined #raspberrypi
[13:03] <ShorTie> might need to learn a few of these tooo.... http://aperiodic.net/screen/quick_reference
[13:04] <giddles> ohoh
[13:04] <arpi> btw, little inspiration for fellow pi enthusiasts(it is just 5$ on ali express): http://imgur.com/a/Tnys1
[13:05] <giddles> that looks great and it works :D
[13:06] <ShorTie> nifty nice
[13:06] * teepee (~teepee@gateway/tor-sasl/teepee) Quit (Ping timeout: 250 seconds)
[13:06] * DrCode (~DrCode@gateway/tor-sasl/drcode) Quit (Ping timeout: 250 seconds)
[13:07] <giddles> ill try installing screen with another command :)
[13:07] <arpi> it works by converting a b/w bitmap into bytes which is then sent to the screen
[13:07] <giddles> gpg failure no public key :/ damn
[13:07] <arpi> it's fun drawing icons as byte arrays
[13:07] <ShorTie> are you using raspbian or some other distro ??
[13:07] <giddles> hmk, interesting
[13:08] <giddles> raspbian yes
[13:08] * teepee (~teepee@gateway/tor-sasl/teepee) has joined #raspberrypi
[13:08] <giddles> W: GPG-Fehler: http://www.linux-projects.org wheezy Release: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar ist: NO_PUBKEY 99DA5D2AFCE635A4
[13:08] <giddles> E: Sperrdatei /var/lib/dpkg/lock konnte nicht geöffnet werden. - open (13: Keine Berechtigung)
[13:08] <giddles> E: Sperren des Administrationsverzeichnisses (/var/lib/dpkg/) nicht möglich, sind Sie root?
[13:09] <ShorTie> from http://www.raspberrypi.org/downloads/ ??
[13:09] <arpi> i don't know German but doesn't sind sie root mean "are you root"?
[13:09] <arpi> because aptitude commands should be run as root or via sudo
[13:09] <giddles> yes ive done sudo
[13:09] <giddles> sudo apt-get install screen
[13:10] <giddles> ah now it seems to work after third try
[13:10] <giddles> i started screen motion :) and it works up
[13:11] <arpi> good. now you can press CTRL+A and then hit D
[13:11] * DrCode (~DrCode@gateway/tor-sasl/drcode) has joined #raspberrypi
[13:11] <arpi> and it will detach your screen session leaving motion running in background
[13:12] <giddles> hmk
[13:12] <giddles> seems that wput command not executed :/ damn
[13:13] <giddles> ah
[13:13] <giddles> with sudo screen motion it works :)
[13:14] <giddles> complicated... :) thanx alot
[13:14] <giddles> hehe you helped me so munch here ;) where could i donate?
[13:14] <ShorTie> buy a couple more pi's
[13:15] <arpi> build something awesome with them and share
[13:15] <giddles> so i closed it and lets see
[13:15] * krnlyng (~liar@83.175.90.24) Quit (Ping timeout: 265 seconds)
[13:15] <giddles> it works :D
[13:15] <giddles> yehaaaaw :D
[13:16] <giddles> youre my heros :) alone in the dark with these english manuals.. thanx
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[13:19] * ValicekB (~tbox@dot.snat.baz.cz) Quit ()
[13:19] <arpi> no problem
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[14:10] * ctarx (~ctarx@p54A85220.dip0.t-ipconnect.de) Quit (Quit: My MacBook has gone to sleep. ZZZzzz…)
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[14:13] <giddles> oh dear ;) never mentioned that this is so munch work only for probinge trough another milestep when the "end" configuration should look even different...
[14:13] <giddles> are there other programmes like screen id could be interested to use?
[14:14] * DrCode (~DrCode@gateway/tor-sasl/drcode) has joined #raspberrypi
[14:15] <ShorTie> screen is to much work ??
[14:15] <giddles> no sir ;) my english is maybe the problem
[14:15] <giddles> works fine
[14:15] <giddles> There is a screen on:
[14:15] <giddles> 3168.pts-0.raspberrypi (17.01.2015 13:13:13) (Detached)
[14:15] <giddles> 1 Socket in /var/run/screen/S-root.
[14:16] <ShorTie> you can reattach it
[14:16] <ShorTie> then it is just like you never left
[14:17] <ShorTie> thats the idea of screen
[14:17] * moei (~moei@softbank221078042071.bbtec.net) Quit (Ping timeout: 264 seconds)
[14:18] <ShorTie> <ShorTie> might need to learn a few of these tooo.... http://aperiodic.net/screen/quick_reference
[14:18] * j0n3 (~j0n3@80.174.54.161.dyn.user.ono.com) has joined #raspberrypi
[14:18] <giddles> yes
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[14:25] * j0n3 (~j0n3@80.174.54.161.dyn.user.ono.com) Quit (Quit: Leaving)
[14:26] * j0n3 (~j0n3@80.174.54.161.dyn.user.ono.com) has joined #raspberrypi
[14:28] <giddles> -quite interesting that wihout sudo screen the ftp upload did not work
[14:29] * ApolloJustice is now known as DogeAI_sp
[14:29] * DogeAI_sp is now known as ApolloJustice
[14:29] <ShorTie> not really
[14:30] <ShorTie> just about anything to do with a file needs root privaledges
[14:30] <giddles> ah ok
[14:30] <ShorTie> some times it's better to live on the wild side and play as root
[14:30] <ShorTie> it makes life easier
[14:30] <ozzzy> I don't even run Windows from a priviledged account
[14:31] <ozzzy> which most do
[14:31] <ShorTie> all those stupid sudo commands can drive you crazy, lol.
[14:31] <giddles> so im not fancy with it
[14:31] <ozzzy> sudo is short for 'remember, thou art mortal'
[14:31] <giddles> sudo screen -s motion ?
[14:31] <giddles> opens by me the motion
[14:32] <giddles> if i close ssh ill must type sudo screen -r motion ?
[14:32] <ShorTie> sudo is, hey stupid, me more powerfull then you
[14:32] <giddles> to get back to that window?
[14:33] * ApolloJustice (~Apollo@unaffiliated/apollojustice) Quit (Ping timeout: 240 seconds)
[14:34] <giddles> the worst thing is that i hope i dont need it anymore when i run it fully confed as daemon
[14:34] <giddles> xD
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[14:35] <giddles> my little motion is a nanny
[14:35] <ShorTie> what, sudo ??
[14:35] <giddles> no
[14:35] <giddles> screen
[14:37] <ShorTie> still might be nice to start it in a screen session, that way you can see easily what is going on
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[14:37] <giddles> so sudo screen C-a c
[14:37] <giddles> ?
[14:39] <ShorTie> if that is what you want, create new window
[14:40] * ShorTie had to look at refence to figure out what it was
[14:40] * leichtgewicht (~leichtgew@pd284b855.osaknt01.ap.so-net.ne.jp) Quit (Read error: Connection reset by peer)
[14:40] <ShorTie> sorry, been awhile since i had to use it
[14:41] <giddles> i found a tut in my language ;)
[14:41] <giddles> lat0r
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[15:09] <SafariMonkey> So I'd like to use five MCP4725 boards on the Raspberry Pi, but I'm not very familiar with I2C. I understand that the chip only has two addresses possible. Does that mean that only two of these can be addressed by the Pi?
[15:11] * Kirito (~Kirito@pdpc/supporter/student/kirito) Quit (Ping timeout: 255 seconds)
[15:12] <ppq> SafariMonkey, no, just configure your clients as i2c slaves and the pi as i2c master, then you can address them all.. theoretically up to 100 and something iirc
[15:12] <SafariMonkey> sorry? My clients? (New to both Pi and I2C I should say)
[15:13] <ppq> with "clients" i mean the devices you want to connect to your pi
[15:13] <Bilby> I think SafariMonkey is saying the MCP4725 only has two address choices
[15:13] <Encapsulation> I'm also trying to use i2c with my pi
[15:13] <Encapsulation> multiple devices can share the 2 pins
[15:14] <Encapsulation> they have unique addresses
[15:14] <Encapsulation> if
[15:14] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) has joined #raspberrypi
[15:14] <SafariMonkey> yeah, it can only be 0x62 or 0x63, though apparently there are models which are 0x60/0x61 too
[15:15] <SafariMonkey> ah OK, so as long as I use different pins I'm fine? I'm not short on pins, as these are all I need to drive so far, but I do need 5 DACs minimum
[15:15] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) Quit (Remote host closed the connection)
[15:16] * frank1e (~frank1e@unaffiliated/frank1e) Quit ()
[15:16] <Encapsulation> no there are just the 2 pins as far as I know
[15:16] * krnlyng (~liar@83.175.90.24) Quit (Ping timeout: 252 seconds)
[15:16] <Encapsulation> multiuple devices can use those two pins as long as their addresses are unique
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[15:16] <Bilby> SafariMonkey if you look at the data sheet, under item 7.2 --> http://www.adafruit.com/datasheets/mcp4725.pdf
[15:17] <Bilby> It says you can order devices with different addresses at A2 and A1
[15:17] <Bilby> I'm not sure if Adafruit offers the different varients but it seems they're available
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[15:18] <Encapsulation> only two of the pins on the pi can be used for i2c, I think,.
[15:18] <Bilby> that would give you enough addresses for 8 boards
[15:18] <SafariMonkey> Bilby, yeah, looks like different ones are available
[15:19] <SafariMonkey> I'll probably use separate pins though, I need max speeds
[15:19] <Bilby> You get two sets. one on P1, one on P5
[15:19] <Bilby> http://elinux.org/RPi_Low-level_peripherals#I.C2.B2C
[15:19] * ZacharyIgielman (~ZacharyIg@31.185.156.19) Quit (Ping timeout: 265 seconds)
[15:21] <Bilby> So you'll likely have to put header pins on P5
[15:21] * MrMobius (~Joey@98.223.189.47) Quit (Ping timeout: 245 seconds)
[15:22] <SafariMonkey> huh, OK. I guess I'll have to get a different config board too.
[15:22] <Bilby> ?
[15:23] <SafariMonkey> I need 5 so I'll need more than the four possible with one factory config
[15:23] <SafariMonkey> since you can only change one bit yourself
[15:23] <giddles> soo
[15:24] <giddles> i can work with screen :D
[15:24] <giddles> holy moly what a work for such simple things
[15:24] <Bilby> SafariMonkey oh, that makes sense
[15:24] <Bilby> giddles what were you trying to do?
[15:24] <SafariMonkey> I'm trying to work with a screen
[15:24] <SafariMonkey> :P
[15:25] <Bilby> oh you were working with the whatsit, the ZIF video output?
[15:26] <giddles> i was trying to run my 'pinoir' cam on 'motion' in not 'deamon mode' with a 'wput' command , while i could colse the ssh connection
[15:26] <giddles> as windows dau :)
[15:29] <Bilby> aha
[15:30] <SafariMonkey> reading forums "We tested the pins and the max frequency is around 100KHz" WHAT? Oh... "that 100KHz should be 100MHz!!!!!"
[15:30] <Bilby> lol
[15:31] <giddles> this cost me hours to run it not in daemon mode... :D im kind of frustrated even it now works :D
[15:31] <SafariMonkey> So I guess I should be able to address the chip at high speed mode (3.4MHz)?
[15:33] <SafariMonkey> At that rate either software or the magnet itself will be the limiting factor
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[16:04] <Gadgetoid> Arrrr!
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[17:29] <HoloPed> how long can a pi+tft screen run off a 11.1v 1300mah lipo ?
[17:33] * FrankBlues (~alex@c-174-52-202-7.hsd1.ut.comcast.net) Quit (Remote host closed the connection)
[17:35] <ShorTie> till the battery runs out
[17:35] <Bilby> If you can't calculate the draw for some reason, you can measure it with an Ammeter or power supply that offers an Ammeter
[17:36] <ShorTie> to many unkown variable to tell
[17:39] * kiely_elsewhere is now known as kiely
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[17:40] <taza> To be specific, which Pi, what it has attached, and what's the screen's draw
[17:41] * Encrypt (~Chuck-nor@AMontsouris-553-1-61-70.w92-151.abo.wanadoo.fr) Quit (Quit: Quitte)
[17:41] <Bilby> and how are you dropping the 11.1v to 5v
[17:42] * jazzzu (~jazzzu@D97B7B1C.cm-3-4b.dynamic.ziggo.nl) has joined #raspberrypi
[17:43] <ShorTie> magic
[17:43] * kiely is now known as kiely_elsewhere
[17:44] <taza> Magic is both illegal and unsupported by the Raspberry Pi Foundation.
[17:44] <Bilby> the only thing i know related to magic is when i let the magic smoke out
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[17:47] <ShorTie> thats a boo boo
[17:47] <ShorTie> not good
[17:49] <HoloPed> Bilby, with a switching vreg
[17:50] <HoloPed> ShorTie, you think it will be more than an hour ? less ? I just need a rough estimate
[17:51] <ShorTie> most likely make it an hour, more or less
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[17:53] <Bilby> HoloPed yea i'd ballpark an hour or so
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[18:19] <ecstaticpessimst> Any low profile proximity sensors that yall would recommend for raspberrypi's
[18:19] <ecstaticpessimst> I've got this chamber and I need to sense whenever a person is inside of it
[18:19] <ecstaticpessimst> But I don't want the sensor to be very visible
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[18:25] <xxValiumxx> suicide booth?
[18:25] <ApolloJustice> kek
[18:25] <xxValiumxx> ecstaticpessimst how low profile?
[18:26] <xxValiumxx> and size of chamber?
[18:27] <ecstaticpessimst> xxValiumxx Its head sized and an electric winch is lowering it down onto a persons head. I need to sense when the fabric/metal chamber has a head inside of it
[18:27] <ecstaticpessimst> its ~1ft x 3ft
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[18:27] <Elderx> sounds fatal
[18:27] <Elderx> :D
[18:27] <ApolloJustice> torture chamber?
[18:27] <ApolloJustice> lol
[18:28] <xxValiumxx> Sorry Jigsaw, find help elsewhere
[18:28] <xxValiumxx> I, for one, do not want to play a game
[18:28] * HoloPed (~HoloPed@66.11.188.221) Quit (Ping timeout: 252 seconds)
[18:28] * superjudge (sid16781@gateway/web/irccloud.com/x-vgcsdmdjsyrzgsxx) has joined #raspberrypi
[18:28] <ecstaticpessimst> haha its really benevolent.
[18:28] <ecstaticpessimst> I swear
[18:29] <ecstaticpessimst> its the kind of thing thats going to look real quaint in person but sounds absolutely terrible over the internet.
[18:29] <xxValiumxx> use IR
[18:30] <ecstaticpessimst> Word, and that will work with fabric covering it because its sensing heat?
[18:30] * llorllale (~llorllale@179.53.81.209) has joined #raspberrypi
[18:30] <xxValiumxx> a simple IR tx/rx pair should do it.
[18:30] <xxValiumxx> no, IR light, in htis case.
[18:30] <xxValiumxx> IR emmiter on one side, IR reciever on the other.
[18:30] * kamdard (~kamdard@pool-173-57-39-202.dllstx.fios.verizon.net) Quit (Ping timeout: 256 seconds)
[18:30] <xxValiumxx> head goes in, blocks the beam
[18:30] <ecstaticpessimst> Ahhh
[18:31] * kiely_elsewhere is now known as kiely
[18:31] <ApolloJustice> and after the head goes in, blades start running
[18:31] * kiely is now known as kiely_elsewhere
[18:31] <ApolloJustice> HUEHUEHUEEU
[18:31] <Elderx> xD
[18:31] <ecstaticpessimst> Alright, that sounds easy enough and low profile.
[18:32] <ApolloJustice> just make sure you get no blood on the IR reciever
[18:32] * NullMoogleCable (~NullMoogl@cpe-74-74-136-123.rochester.res.rr.com) Quit (Ping timeout: 244 seconds)
[18:33] <Elderx> some moisture sensing there to tell when "job is done"
[18:33] <xxValiumxx> ApolloJustice this is why we're using IR, blood doest block it very well.
[18:33] <ApolloJustice> lol
[18:33] <ApolloJustice> ahh okay xxValiumxx
[18:33] <ecstaticpessimst> Also I could probably cover the sensor and reciever in a thin layer of human skin, another plus
[18:34] <ecstaticpessimst> good call xxValiumxx
[18:34] <ApolloJustice> heh
[18:34] <ApolloJustice> #raspberrypitorturedevices
[18:34] <ApolloJustice> kek
[18:34] <ecstaticpessimst> Oh god.
[18:34] <ApolloJustice> should totally be a thing
[18:34] <ecstaticpessimst> I just want to see someone give a really eager sounding tech talk about using arduinos and raspberrypi'
[18:34] <ecstaticpessimst> s for torture devices
[18:35] <ecstaticpessimst> really tryna sell people on bringing torture techniques into the maker movement
[18:35] * GerhardSchr (~GerhardSc@unaffiliated/gerhardschr) has joined #raspberrypi
[18:35] <ApolloJustice> "hmm so here we have a small chamber with an IR pair to detect when a head goes in and CUT THE HEAD OFF WITH BLADES MUHAHAHAHA"
[18:35] <xxValiumxx> blades? nah, laser
[18:36] <xxValiumxx> it may take 15 hours, but it'll do.
[18:36] <ecstaticpessimst> Have any of your heard of mark pauline?
[18:36] <ApolloJustice> lol
[18:36] <xxValiumxx> ecstaticpessimst okay, wht happns once a head in inside the box?
[18:36] * Vutral (~ss@mirbsd/special/Vutral) Quit (Ping timeout: 252 seconds)
[18:36] <ecstaticpessimst> its almost exactly what were tlaking about https://www.youtube.com/watch?v=781yApQAvPI
[18:37] * Syliss (~temp@c-24-23-6-50.hsd1.ca.comcast.net) has joined #raspberrypi
[18:37] <ecstaticpessimst> xxValiumxx, Its really awful to describe in text. I wish I could show you in drawings.
[18:37] * AndrevS (~andrevs@2001:982:27e5:1:20f:eaff:fe58:28f8) has joined #raspberrypi
[18:38] <xxValiumxx> you might want to, the video isnt helping your claim any
[18:38] <ApolloJustice> yeah lol
[18:38] * nerdboy (~sarnold@gentoo/developer/nerdboy) has joined #raspberrypi
[18:38] <ApolloJustice> "so i just need something to detect a head in a box mkay"
[18:39] <ApolloJustice> "preferably blood proof"
[18:39] <ApolloJustice> heh
[18:39] <xxValiumxx> I forgot to intrduce myself, xxValiumxx, Internet Police.
[18:39] <ApolloJustice> hehehe
[18:39] <ecstaticpessimst> But basically its this sculpture that I got a grant to build. Its called the delusion chamber. It looks like a light fixture and it can be installed in public places/parks and such. Its a welded geodesic dome, hooked up to lighting, an electric winch to move it up and down and then theres speakers inside of it
[18:39] * taza (~taza@unaffiliated/taza) Quit ()
[18:39] <ecstaticpessimst> It ossilates between really calm colors when no one's standing under it
[18:40] <xxValiumxx> geodesic dome ! box
[18:40] <xxValiumxx> geodesic dome != box
[18:40] <ecstaticpessimst> you know what I mean
[18:40] <ecstaticpessimst> similar things
[18:40] * korst3n (~korst3n@unaffiliated/korst3n) Quit (Ping timeout: 264 seconds)
[18:40] <ecstaticpessimst> anywho, when someone stands under it, the robot goes through this selection process to determine if its the right person for it to "descend upon"
[18:41] * Syliss (~temp@c-24-23-6-50.hsd1.ca.comcast.net) Quit (Client Quit)
[18:41] <xxValiumxx> I hope theres no flashing lights
[18:41] <ecstaticpessimst> itll blink a confirmation sound and then slowly and loudly get lowered down onto the person.
[18:41] <ecstaticpessimst> no flashing lights
[18:41] <xxValiumxx> good, because epilepsy is totally a thing
[18:42] <ecstaticpessimst> then when its on the person it starts playing randomly generated ambient music, the lights change to warmer colors, and then it starts playing at random from a bank of recordings of people talking about delusional belief systems/ideas they had in the past.
[18:42] * Vutral (~ss@mirbsd/special/Vutral) has joined #raspberrypi
[18:43] * taza (~taza@unaffiliated/taza) has joined #raspberrypi
[18:43] <ecstaticpessimst> Im honestly suprised that someone wanted to fund that, but im not complaining im having a great time building it. and its nearly done.
[18:43] * ritek (sid22312@gateway/web/irccloud.com/x-ihczxlmqqulxkkpu) has joined #raspberrypi
[18:44] <ApolloJustice> so what you're trying to say is that you're not building a torture chamber, but more like an art-ish project?
[18:44] * djhworld (~djhworld@176.252.101.227) Quit (Quit: My Mac has gone to sleep. ZZZzzz…)
[18:44] <ecstaticpessimst> yaya, definitely, which is definitely a torture chamber in its own right but without blood
[18:44] <ecstaticpessimst> ...hopefully
[18:44] <ApolloJustice> lol
[18:45] * ApolloJustice wanted a Pi-powered death chamber
[18:46] <ecstaticpessimst> Yo hopefully if I ever get around to meeting/ making friends with mark pauline, he'll let me help him build something like that...for art though.
[18:46] <ApolloJustice> FOR ART! and death. lots of death.
[18:46] <ecstaticpessimst> Also this got me thinking, are there any crazed otaku/electronics nut serial killers out there? I feel like there must be but ive never hear of them
[18:46] <ApolloJustice> probably
[18:47] <ApolloJustice> i made an Arduino-powered black powder cannon once
[18:47] <ApolloJustice> lol
[18:47] <ApolloJustice> could very well be used for killing
[18:47] <ecstaticpessimst> Woooah, really, did you document it?
[18:47] <ApolloJustice> it was pretty simple
[18:47] <ecstaticpessimst> ya....dude wtf is going to happen when people need to start making diy killer robots
[18:48] <ApolloJustice> an arduino running a WiFi shield hooked up to a detonator that lit a fuse for the cannon and was triggered through a web interface
[18:48] <Elderx> skynet incoming
[18:48] <Elderx> i can see it
[18:51] <ecstaticpessimst> I recently found out that the technical term for studing killer robots in university is "Global Engagement"
[18:51] * UKn0Me (~UKn0Me@CPE-124-182-138-102.lns5.pie.bigpond.net.au) Quit (Quit: Was fatally stabbed in a cold, dark alleyway.)
[18:51] <ApolloJustice> lol
[18:51] <ecstaticpessimst> applied physics and global engagement...horrify euphemism
[18:53] <ecstaticpessimst> xxValliumxx is there any specifc ir sensor you'd recommend?
[18:54] <xxValiumxx> you can get a matched apir from radioshack
[18:54] <xxValiumxx> pair*
[18:54] <xxValiumxx> assuming united states
[18:54] <ApolloJustice> i did the same thing with a photoresistor and a dollar store laser pointer
[18:54] <ApolloJustice> lol
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[18:55] <xxValiumxx> ApolloJustice that would work as well, save for the length of the laser diode housing
[18:55] <ecstaticpessimst> isnt it awful to hook a photoresistor up to a raspi though
[18:55] <ApolloJustice> I dunno
[18:55] <ApolloJustice> i haven't messed with the Pi's GPIO at all
[18:56] <ApolloJustice> i have only used it as a linux box
[18:56] <ecstaticpessimst> Ya it doesnt have analog input like an arduino does
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[18:56] <ecstaticpessimst> so you have to do some weird work arounds to make a photoresist work
[18:56] <ApolloJustice> aw
[18:56] <ecstaticpessimst> and it doesnt work well even then
[18:57] <ecstaticpessimst> xxValiumxx I already have one of these http://www.adafruit.com/product/157 Should work fine if I get an ir led right>
[18:58] <xxValiumxx> yup
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[19:01] <ecstaticpessimst> sweeeeet. Im excited. Its so close to being finished
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[19:08] * roasted (~quassel@unaffiliated/roasted) has joined #raspberrypi
[19:08] <roasted> Hi
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[19:12] <roasted> I installed OpenMediaVault on my pi and pushed 10gb to it. Lots of little files. Halfway through it hard locked. No monitor output, couldn't ping it, also didn't respond to keyboard. Had to power cycle it. I had it over clocked to 900mhz. Tried another transfer, this time 100gb of movies when still at 900mhz, which was fine. Moved it to stock 700mhz but has me wondering how reliable this will be as a nas given it locked up once. Is it likely it
[19:12] <roasted> was just the over clock?
[19:12] <ApolloJustice> roasted, power supply?
[19:12] <roasted> It's in a plastic case with a decent opening just on top of the chip
[19:13] <roasted> ApolloJustice: 700mA cell phone adapter
[19:13] <ApolloJustice> probably that
[19:13] <roasted> Self powered external drive so that shouldn't pose a problem
[19:13] <roasted> Think I need a more powerful one?
[19:13] <ApolloJustice> overclock on barebones power supply is very unstable
[19:14] <roasted> I have a 2a adapter available...
[19:14] <roasted> Not sure if I have anything in between
[19:14] <ApolloJustice> yeah, get a 2A one, 2A is the optimal current for a Pi
[19:14] <roasted> Even okay for first gen pi?
[19:14] <Elderx> yes
[19:14] <ApolloJustice> yup
[19:14] <roasted> I have like the original b+ 256mb
[19:14] <ApolloJustice> yeah
[19:14] <Elderx> it will not drow more than it needs from it
[19:14] <Elderx> draw*
[19:14] <ApolloJustice> you mean the original b?
[19:14] <roasted> K. I was afraid it would be too much power.
[19:15] <roasted> Oh yes
[19:15] <ApolloJustice> the B+ is the one with 4 usb and 512mb
[19:15] <roasted> My mistake
[19:15] <roasted> Yes original b
[19:15] <ozzzy> I thought the B and B+ were 512
[19:15] <ApolloJustice> there's people running Pi's of 5A power supplies
[19:15] <roasted> Two usb 256 ram
[19:15] <Elderx> original b has 512M
[19:15] <ApolloJustice> oh yeah
[19:15] <Elderx> only A has 256
[19:15] <ApolloJustice> original b is 512
[19:15] <ApolloJustice> then you have the A
[19:15] <ApolloJustice> A+?
[19:15] <ApolloJustice> i'm confuzzled
[19:15] <ApolloJustice> too many models
[19:16] <roasted> Maybe I have 512? I thought for a short time original b had 256
[19:16] <ozzzy> well... he's worked his way down through the list LOL
[19:16] <ozzzy> roasted, no... the A had 256... the B had/has 512
[19:16] <roasted> I have a network port. Original a didn't if I recall
[19:16] <ApolloJustice> then you have an A+
[19:16] <roasted> Let me see what OpenMediaVault is reporting
[19:16] <ApolloJustice> shouldn't make a difference
[19:16] <ApolloJustice> there are people running Pi's of 5Amp supplies
[19:17] <ApolloJustice> the Pi draws only what it needs
[19:17] * ozzzy runs his pi from a deep-cycle marine battery
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[19:18] <roasted> no I do have 256.
[19:18] <roasted> Either way sounds good
[19:18] <roasted> About the adapter
[19:18] <roasted> Didn't want to over feed it
[19:19] <roasted> I'll just use the 2a adapter and make sure it can take another 100gb test transfer for kicks
[19:20] <roasted> Thanks everyone. :)
[19:20] <ApolloJustice> np
[19:21] <__rob> is there every anyone in here that actually works on the raspberry pi?
[19:21] <Bilby> Early B revisions had 256 :)
[19:21] * Xano (~bart@a92136.upc-a.chello.nl) Quit (Quit: Xano)
[19:21] <Bilby> __rob what do you mean by "worked on"? Do you mean someone who helped to develop the Pi?
[19:21] <__rob> as in developing it, rather than using it
[19:21] * ssvb (~ssvb@85-76-42-101-nat.elisa-mobile.fi) Quit (Quit: Leaving)
[19:21] <__rob> yes, exactly that
[19:22] <__rob> Says Unofficial in the topic, so I wondered..
[19:22] <Bilby> Not that I know of
[19:22] <ApolloJustice> not really __rob
[19:22] <Bilby> this channel is unoffical but "blessed" by the foundation
[19:23] <__rob> ok, thats a shame
[19:23] <__rob> I guess the forums are more direct then
[19:23] <Bilby> It depends on what you're looking for, I guess
[19:23] <Bilby> this is more of a newcomer-friendly channel, though there is some pretty low-level discussion here too
[19:23] <__rob> well some information about the camera csi-2 stuff
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[19:41] <dob1> hi, how is possible that doing openssl speed raspberry has the same performance (sometimes better) of a pc ?
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[19:47] <xxValiumxx> dob1 Umm... what?
[19:48] * Encrypt (~Chuck-nor@AMontsouris-553-1-61-70.w92-151.abo.wanadoo.fr) Quit (Quit: Dinner time!)
[19:48] <dob1> xxValiumxx, well i don't know if i am looking at the results in the right way :)
[19:48] <xxValiumxx> allright, can you re-phrase the question?
[19:49] <ApolloJustice> i think he asked how is it possible that the pi has the same openssl performance as a pc
[19:50] <dob1> xxValiumxx, it's simple, for example rpi Doing md5 for 3s on 8192 size blocks: 20772 md5's in 2.56s a pc Doing md5 for 3s on 8192 size blocks: 180019 md5's in 3.00s
[19:50] <dob1> seems the same
[19:50] <ApolloJustice> no
[19:50] <ApolloJustice> the pi did 20772 MD5's in 2.56 seconds
[19:50] <dob1> it does more blocks in that time?
[19:50] <ApolloJustice> the PC did 180019 MD5's in 3 seconds
[19:50] <dob1> i see, i was just looking at the times, my bad
[19:51] <ApolloJustice> yeah
[19:51] <xxValiumxx> I'm still trying to figure out the relation to openssl :P
[19:52] * skyroveRR (~skyroveRR@unaffiliated/skyroverr) Quit (Read error: Connection reset by peer)
[19:52] <dob1> xxValiumxx, what you mean? it's a performance test
[19:53] <xxValiumxx> openssl?
[19:53] <dob1> openssl speed
[19:54] <xxValiumxx> I am soo confused right now.
[19:54] <xxValiumxx> oh hell.
[19:54] <xxValiumxx> I see now
[19:54] <xxValiumxx> its a program in the openssl package
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[20:03] <roasted> Bilby: ah hah! so I wasn't crazy.
[20:03] <roasted> (256MB RAM model B)
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[20:11] <Bilby> roasted lol no. ahhh... damn, i can't remember who, but someone recently ordered a model A on amazon and ended up getting a rev 1 model b instead, with 256mb ram
[20:13] <roasted> interesting
[20:14] <roasted> I do have to say, it's nice firing up the openmediavault web UI and seeing that it's only eating 20% of my 256 MB RAM despite being under a massive file transfer.
[20:14] <roasted> I thought the pi would struggle but OMV (headless Debian, basically) is so damn light
[20:17] <roasted> this thing is going to make a perfect little NAS for my in laws. Double-side-tape the pi case to the external, sit it on the desk, boom, done.
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[20:28] <roasted> I noticed that OMV has options for split images on the raspberry pi. What you do is dd the SD card image to the SD card, and dd the HDD image to the HDD. This puts boot + kernel on the SD card and the actual OS itself on the HDD. My question is, how would I do this manually with say Raspbian if I so chose to?
[20:28] * Sir_Pony (~rawr@2606:a000:b484:8500:9c3c:99ff:8308:3512) Quit (Ping timeout: 245 seconds)
[20:28] <roasted> Could I just boot up to a live flalsh drive containing the OS to install, manual partitioning, select SD as /boot and HDD as / for root/OS?
[20:28] <roasted> (Can you even boot the pi with a live USB based installer?
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[20:29] <shiftplusone> no
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[20:29] <shiftplusone> the sd card is required to boot
[20:29] <roasted> right
[20:29] <roasted> but if I do manual partitioning I can target the SD card to contain the /boot partition
[20:29] <shiftplusone> yes
[20:29] <roasted> then target the HDD for the OS ( / )
[20:30] <shiftplusone> exactly
[20:30] <shiftplusone> you just need the fat32 partition on the card with the firmware and kernel, you modify cmdline to point to whatever rootfs you want.
[20:30] <roasted> but I cannot boot the Pi with a USB installer. Like if I want tot install Ubuntu on my Dell, I hit F12 at boot, select USB, and boom I'm golden.
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[20:30] <ApolloJustice> well ofc not
[20:30] <ApolloJustice> the Pi doesn't have a bios so to speak
[20:30] <roasted> Is there any guides that you know of for this? I'm finding a lot of chatter about it but haven't found a specific guide just yet.
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[20:31] <shiftplusone> roasted: I googled "pi usb rootfs guide" and a guide popped right now.
[20:31] <ApolloJustice> RTFG
[20:31] <ApolloJustice> or something
[20:31] <shiftplusone> http://www.raspberrypi.org/forums/viewtopic.php?f=29&t=44177
[20:32] <abnormal> we need to ask Eben to start putting in a BIOs chip on the pi
[20:32] <roasted> nice. I was searching for install raspbian on USB HDD etc.
[20:32] <ApolloJustice> Read The Freakin Google? RTFG? does that work? lel
[20:32] <roasted> like I said that search pulled up a lot of forum chatter, but it was mostly older articles of people simply talking about it.
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[20:32] <roasted> but I'll check with the rootfs terminology
[20:32] <roasted> thanks!
[20:32] <shiftplusone> roasted: the guide I just linked has all the info and then some
[20:33] <roasted> ah perfect
[20:33] <roasted> appreciate it
[20:33] <shiftplusone> doesn't matter if it's old, the pi has booted the same since day one
[20:33] <shiftplusone> only support to boot from different partitions was added for noobs, but that's not relevant.
[20:34] <roasted> shiftplusone: the threads I dug up sounded more like people talking about how they think they should go about it, not so much "well I did this and it worked" etc.
[20:34] <roasted> early days of the pi it seemed
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[20:35] <shiftplusone> guides are just a crutch. You should aim to take information from posts like that and figure out why and how it works (or doesn't).
[20:37] <Gadgetoid> I was booting my Pi from an HDD two years ago, thanks to someone here *wink*
[20:38] <Gadgetoid> Then I realised that having a flipping HDD attached made it use twice the power and as portable as a breeze block
[20:38] <roasted> shiftplusone: that's just it. The chatter in the threads I dug up had nothing relevant to an actual solution.
[20:38] <roasted> hence, why I asked.
[20:38] * dj_pi (~dj@c-107-5-228-80.hsd1.mi.comcast.net) Quit (Ping timeout: 264 seconds)
[20:38] <roasted> but this post you linked is interesting. All it is is creating another file system on the HDD, rsync it over, fstab, boom done.
[20:39] <Gadgetoid> Or probably DD over to a blank HDD then resize the partition in gparted
[20:39] <roasted> indeed
[20:40] <abnormal> why do you want to use a HDD on a pi?
[20:40] * leichtgewicht (~leichtgew@p76ed0ed3.osaknt01.ap.so-net.ne.jp) Quit (Ping timeout: 276 seconds)
[20:41] <Bilby> woot, quote sent. i can relax
[20:41] * tombrough (~tom@cpc3-newt3-0-0-cust165.19-3.cable.virginm.net) Quit (Quit: Leaving.)
[20:41] <Bilby> momentarily
[20:41] <Gadgetoid> Easier to boot from SD and use an HDD as a media/working disk, then you can always unplug and go portable
[20:41] <abnormal> yeah?
[20:41] * tombrough (~tom@cpc3-newt3-0-0-cust165.19-3.cable.virginm.net) has joined #raspberrypi
[20:41] * teepee_ (~teepee@gateway/tor-sasl/teepee) has joined #raspberrypi
[20:42] <abnormal> why not just used a 540gb SD card?
[20:42] <roasted> abnormal: I burnt through a few SD cards. I have avoided using my raspi specifically because I grew less comfortable with trusting it would continue working.
[20:42] <roasted> letting the SD card do as little as possible seemed like an attractive alternative. The only alternative is to... use something other than a pi. :P
[20:42] <Gadgetoid> My Pi is still running... after 2 years...? what do you people *do* to break it :D
[20:42] <ApolloJustice> why do people keep killing SD's?
[20:42] <ApolloJustice> is it so hard to get a good quality card?
[20:42] <roasted> I can't answer that. I just ran openelec on mine.
[20:42] <roasted> Didn't even have data on it. Streamed it from my server over the LAN.
[20:43] <Gadgetoid> I stuffed one up by fiddling the partitions, and one in the very early days, but other than that... pretty stable
[20:43] <roasted> ApolloJustice: I chose 3 different branded SD cards on the officially supported Pi list. All 3 died.
[20:43] <Bilby> I have 14 pies running a digital billboard system for offices, and SD cards die pretty regularly
[20:43] <Bilby> we're not entirely sure why :/
[20:43] <ApolloJustice> i've used 2 SD's on my Pi
[20:43] <Gadgetoid> And I use Pi's all day, every day, and have multiple cards on the go to test new products
[20:43] <Bilby> mine at home has never had a problem, but i don't run it 24/7
[20:43] <ApolloJustice> I run mine 24/7
[20:43] <ApolloJustice> haven't burnt through a card
[20:44] <roasted> ApolloJustice: play the lottery :P
[20:44] <ApolloJustice> but then again I'm using an 80 dollar 128gig card
[20:44] * teepee (~teepee@gateway/tor-sasl/teepee) Quit (Ping timeout: 250 seconds)
[20:44] * teepee_ is now known as teepee
[20:44] <ApolloJustice> so lel
[20:44] <Gadgetoid> Wonder if it's a power condition thing?
[20:44] <Bilby> we definitely had a problem with cheap microcenter SD cards, but even with good quality cards it doesn't seem to be super reliable
[20:44] <Gadgetoid> Ye olde power supply scapegoat :D
[20:44] <Bilby> hmm... that may be... these are plugged directly into a wall outlet
[20:44] <Bilby> it's one of those with a built in USB power supply
[20:45] <Bilby> hmm. i should grap one of those outlets and do a draw test on it, see what kind of power it's putting out.
[20:45] <Bilby> they're rated for "3A"
[20:46] <abnormal> yes but some of them leak AC thru them
[20:46] <Bilby> Pis are model Bs running usb Wifi, HDMI -> VGA -> LCD monitor, and that's it.
[20:46] * PasNox (~pasnox@2a01:e34:ee42:d070:3cb0:3310:cf56:3993) has joined #raspberrypi
[20:48] <Bilby> I don't work there regularly, I did the Pi install as a one-off as a contractor. Sysadmin is a friend of mine and has been asking for help with it again.
[20:48] <abnormal> so you need to be sure the power supply is not leaking AC to the pi.
[20:49] * PasNox (~pasnox@2a01:e34:ee42:d070:3cb0:3310:cf56:3993) Quit (Remote host closed the connection)
[20:49] <abnormal> has to be straight DC power only
[20:49] * eru (~neutrino@unaffiliated/electron/x-8286743) Quit (Ping timeout: 245 seconds)
[20:49] <Bilby> I need to get an occiliscope XD
[20:50] <abnormal> yup
[20:50] <Bilby> Sooo far down my buy list
[20:50] <abnormal> no
[20:50] <abnormal> now
[20:50] <Bilby> brb breaking into university science lab
[20:50] * MageJames (~Magejames@cpe-071-075-062-008.carolina.res.rr.com) has joined #raspberrypi
[20:51] * [sk]Ray_ (~quassel@71-95-197-158.static.mtpk.ca.charter.com) has joined #raspberrypi
[20:52] <Bilby> What do you think of this? http://columbus.craigslist.org/ele/4850449527.html
[20:53] * ben_nrw (~ben@ip-176-198-68-220.hsi05.unitymediagroup.de) Quit (Ping timeout: 245 seconds)
[20:53] * [sk]Ray (~quassel@71-95-197-158.static.mtpk.ca.charter.com) Quit (Ping timeout: 264 seconds)
[20:56] <abnormal> http://www.raspberrypi.org/tag/expeyes/
[20:57] <abnormal> it's ok if you got room on bench.
[20:59] <abnormal> so what you think of my link?
[20:59] <abnormal> I want to get one, but the closest vendor is in Canada...
[21:01] * kossy (a@unaffiliated/kossy) Quit (Ping timeout: 245 seconds)
[21:02] <Bilby> is it just supposed to be cheap IO for the pi?
[21:03] <abnormal> no, sillie.. it is an oscilloscope for the pi...
[21:03] <Bilby> sorry, reading comprehension is low... multitasking
[21:03] <abnormal> kind of like the Pico ones
[21:03] * kossy (a@unaffiliated/kossy) has joined #raspberrypi
[21:04] <Bilby> man, no where in there does it say it's an oscilloscope
[21:04] <Bilby> articles written for publication, just full of gibberish
[21:05] <abnormal> my plan is to use the spoofed Model A they sent me that is actually a B with 256mb mem and hook that expEYES to it and I will have an oscilloscope!
[21:06] * Metics (~metics@86.Red-2-136-187.dynamicIP.rima-tde.net) Quit (Remote host closed the connection)
[21:06] <abnormal> ok just a min.. I'll get you a new link...
[21:06] * Encrypt (~Chuck-nor@AMontsouris-553-1-61-70.w92-151.abo.wanadoo.fr) has joined #raspberrypi
[21:07] <abnormal> http://www.seeedstudio.com/depot/expEYES-Junior-p-1423.html
[21:07] <abnormal> this one is clearly explainable...
[21:07] <abnormal> be right back, gotta go smoke...
[21:08] * Jck_true_ (~quassel@unaffiliated/jcktrue/x-390518) Quit (Read error: Connection reset by peer)
[21:09] <omfgtora> i have come to the conclusion that i suck at linux
[21:09] * Jck_true (~quassel@unaffiliated/jcktrue/x-390518) has joined #raspberrypi
[21:10] <roasted> lol
[21:10] * MageJames (~Magejames@cpe-071-075-062-008.carolina.res.rr.com) Quit (Remote host closed the connection)
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[21:12] <ShorTie> l@@ks cool Bilby
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[21:14] <Gadgetoid> So... any thoughts on Flotilla yet? :D
[21:15] <abnormal> omfgtora, why?
[21:18] * mang0 is now known as mang0|AFK
[21:19] * blib (~kp@c-68-35-250-254.hsd1.fl.comcast.net) has joined #raspberrypi
[21:20] <blib> anyone has played with the gpio here? cud use some help
[21:21] <Bilby> 'sup blib
[21:24] <blib> hi Bilby
[21:24] <blib> I have a sensor that I am trying to use, it says i2c , but has two extra pins
[21:24] <blib> "PWR EN" and "MODE" - any ideas how I can talk to them using gpio?
[21:26] * djhworld (~djhworld@176.252.101.227) Quit (Quit: My Mac has gone to sleep. ZZZzzz…)
[21:26] * m8 (~m@unaffiliated/m8) Quit (Quit: Sto andando via)
[21:27] <undecim> can I drive a small motor directly from the pi?
[21:28] <abnormal> only if less than 15mA
[21:28] * Datalink_ (Datalink@unaffiliated/datalink) Quit (Quit: Datalink offline)
[21:28] * MageJames (~Magejames@cpe-071-075-063-079.carolina.res.rr.com) has joined #raspberrypi
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[21:29] <giddles> i have a problem again ;)
[21:29] <Bilby> blib the data sheet / manual for the sensor should have the info you need. what sensor are you using?
[21:29] <abnormal> who doesn't have a problem?
[21:29] * shiftplusone raises hand
[21:29] <undecim> Something like this? http://www.ebay.com/itm/like/281516352412?lpid=82&chn=ps
[21:30] <abnormal> good for you, shiftplusone
[21:30] <giddles> i start from the rc.local some: sleep 20; sudo screen motion
[21:30] <giddles> and holy moly all works, even my ftp upload what i have done bad to the config
[21:30] <giddles> but i cant open the...
[21:31] <giddles> screentab
[21:31] <Bilby> I have 99 problems but my RasPi ain't one
[21:31] <giddles> what rc.local started successfully
[21:33] <shiftplusone> giddles: you're doing pretty much everything wrong.
[21:33] <giddles> hmk
[21:33] <thor77> can anyone give me some information if it's possible to control this http://www.aliexpress.com/item/8-32-Full-color-WS2812B-WS2812-5050-RGB-SMD-Flexible-LED-Pixel-Panel-Light-DC5V/32241400016.html led stripe with a raspi and what do i need to get this working?
[21:33] <giddles> nice to hear ;)
[21:33] <shiftplusone> You don't need 'sudo' in rc.local, it already runs as root. Why are you starting motion as root anyway? what do you run to attach to screen?
[21:34] * laeckerv (~laeckerv@2a02:8071:8382:9b00:8a53:2eff:fe22:7da6) Quit (Ping timeout: 276 seconds)
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[21:34] <giddles> i run wput to ftp my files
[21:34] <Gadgetoid> thor77: you can drive that right of the Pi's GPIO
[21:34] <giddles> to a router
[21:34] <Gadgetoid> off*
[21:34] <giddles> i need sudo
[21:34] <thor77> Gadgetoid: and then control it via python with this gpio-module?
[21:34] <abnormal> you do?
[21:35] <Gadgetoid> thor77: https://github.com/pimoroni/UnicornHat/tree/master/python/ws2812
[21:35] <thor77> do i need some extra power adapters or is the power from the pi enough?
[21:35] <Bilby> this is getting a bit too simple. start here, thor77 http://lmgtfy.com/?q=control+5050+led+with+raspberry+pi
[21:36] <Gadgetoid> thor77: You will need a separate 5v power supply for best effects, I think 256 pixels would push the Pi way too far!
[21:36] * MageJames (~Magejames@cpe-071-075-063-079.carolina.res.rr.com) Quit (Remote host closed the connection)
[21:36] <Gadgetoid> I have run ws2812 LEDs at 5v and driven them from a GPIO pin at 3v3, but that's not recommended and definitely "out of spec"
[21:37] <thor77> Bilby: i duckduckgo'd this term, but didnt find smth about a stripe with that size
[21:37] * mang0|AFK is now known as mang0
[21:37] <Bilby> i've been very unimpressed with ddg's search results :/
[21:37] * thor77 <3 duckduckgo
[21:39] <giddles> hm
[21:39] <thor77> maybe i should start with cheaper led-stripe...
[21:39] <thor77> this big ones are all very expensive :/
[21:40] <omfgtora> abnormal: first, i have an old tablet PC (wacom style) that was slow so i thought lubuntu would work if mint worked right way. wrong. i cant get the drivers for wacom to work but i messed up the entire install somehow. i guess ill just try mint+lxde. but also, i got a rpi touchscreen thing but i cant get it to work =/
[21:40] <giddles> hm
[21:40] <thor77> and i would be very sad if i would destroy that much money^^
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[21:40] <giddles> ill be back :)
[21:40] <giddles> nice saturday
[21:40] <giddles> !
[21:40] <Bilby> the only real difference on those LEDs is if they are common-ground or common-power
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[21:40] <Gadgetoid> thor77: Might I recommend... UnicornHat? :D
[21:40] * giddles (~i@unaffiliated/giddles) Quit (Quit: .)
[21:42] <thor77> Gadgetoid: which led stripe are you using?
[21:43] <Gadgetoid> thor77: I use our own, since, well, they are lying all over the office and handy!
[21:43] <Gadgetoid> thor77: Let's just say I'm a little biased toward http://shop.pimoroni.com/products/unicorn-hat but there's no reason you can't use any other ws2812 strips with the same software
[21:44] <thor77> i think my room would look much better with some led-stripes :) and it would be very very cool to show a timer on this stripes or smth like that :)
[21:44] <abnormal> omfgtora, ok, simmer down... do one thing at a time.. you are doing too much at one time, lol... the tablet PC prolly can't handle the Mint OS of any kind, maybe Tarhpup, but do not know.... and the pi touch screen is a touchy thing to set up, you will have to go to the RPi forums to get help to set that up correctly.
[21:44] <Gadgetoid> thor77: you might want to go with a long strip of LEDs instead of a 8x8 grid then
[21:45] <omfgtora> the tablet was last night, the rpi was today. i think that is one at a time?
[21:45] <Gadgetoid> thor77: you might also want to look at LPD8806 LEDs, they're kinda out of fashion but still pretty good and easier to drive than ws2812s
[21:46] * Bilby wanders off to play TF2 for a while
[21:46] <Bilby> be back later
[21:46] <Gadgetoid> thor77: I have about 5 strips of these which I could run from a single mains adaptor and a Parallax Propeller: http://www.adafruit.com/product/306
[21:47] <thor77> Gadgetoid: oh, they look very nice. is it possible to set a different status (on/off) and color for each led?
[21:47] <thor77> looks like on the images
[21:47] <Gadgetoid> thor77: Yep! They're kinda like shift registers
[21:47] <Gadgetoid> You shift the pixel data down the chain
[21:48] <abnormal> lol, omfgtora .... ok... but I don't have experience of both so I have no solution for either one, sorry...
[21:48] <thor77> maybe i will start with a stripe like this
[21:48] <thor77> its not THAT expensive
[21:49] <Gadgetoid> thor77: looks like this is the go-to driver for those LEDs on the Pi, not the best documentation in the world :D https://github.com/ManiacalLabs/BiblioPixel
[21:49] <Gadgetoid> Ah there's a wiki
[21:49] <Gadgetoid> Uses the Pi's hardware SPI, too: https://github.com/ManiacalLabs/BiblioPixel/wiki/DriverLPD8806
[21:50] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) has joined #raspberrypi
[21:50] <Gadgetoid> Yikes, we're nearly funded on day 1 :D
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[21:51] <omfgtora> but also, the past experiences i've had with linux has be very frustrating
[21:52] <Gadgetoid> Linux is carefully crafted to be frustrating, if it wasn't then it would get too popular and the Linux users would have to find something else
[21:52] <thor77> Gadgetoid: wow, cool. do i need some extra power for this strip? http://www.adafruit.com/product/306
[21:53] <thor77> can i use any 5v power-adapter?
[21:53] <thor77> how can i connect the adapter and the strip?
[21:54] <Gadgetoid> thor77: read the product description :D it's luck of the draw if you buy 1 meter, you may or may not get a connector already attached
[21:54] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) Quit (Ping timeout: 245 seconds)
[21:54] <Gadgetoid> Otherwise some soldering would be required
[21:56] <Gadgetoid> thor77: If you have an A+ or B+ then just get a UnicornHat for easymode :P
[21:56] <thor77> Gadgetoid: i have the first pi that has ever been published
[21:56] <thor77> uh, there's a link in the description to a power adaper.
[21:56] <Gadgetoid> Hahaha, okay! It'll still drive pixels but stuffing a HAT onto an old Pi is.. errr... "not officially supported"
[21:57] <thor77> http://www.adafruit.com/products/276 but this one wont fit into my socket :/
[21:57] <Gadgetoid> Yeah grab a power adaptor and a female barrel jack to screw terminal adaptor, solder a couple of wires on!
[21:57] <Gadgetoid> thor77: Where are you based?
[21:57] <thor77> Gadgetoid: germany
[21:58] <Gadgetoid> Ah you have those crazy round sockets
[21:58] <thor77> ;)
[21:59] <Gadgetoid> thor77: BAM http://shop.pimoroni.com/products/adafruit-usb-micro-b-breakout-board BAM http://shop.pimoroni.com/products/raspberry-pi-universal-power-supply
[21:59] <thor77> and then my pi will have enough power?
[21:59] <Gadgetoid> thor77: Nah, that's for wiring straight on to the pixels
[22:00] <Gadgetoid> We don't sell the pixels though, boo
[22:00] <thor77> so i need this led-stripes http://www.adafruit.com/product/306 this http://shop.pimoroni.com/products/adafruit-usb-micro-b-breakout-board and this http://shop.pimoroni.com/products/raspberry-pi-universal-power-supply for power anything missing?
[22:01] <undecim> Is there a website where I can search for electric motors by spec? I need low RPM and low current
[22:01] <undecim> Basically, I need ~5 RPM that I can drive from my Pi
[22:01] * dj_pi (~dj@c-107-5-228-80.hsd1.mi.comcast.net) Quit (Ping timeout: 245 seconds)
[22:01] <thor77> and.. what do you mean with this? "female barrel jack to screw terminal adaptor"
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[22:02] <Gadgetoid> thor77: that would be for a mains adaptor that has a barrel jack on the end
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[22:02] <Gadgetoid> undecim: 5rpm? Don't think that's possible without gearing it right down, or maybe use a stepper?
[22:03] <Gadgetoid> The torque of a regular motor spinning at 5rpm would surely be negligible
[22:03] <undecim> Well, I can handle gearing it down
[22:03] <undecim> So I guess I just need to worry about current draw?
[22:03] <Gadgetoid> What's it for?
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[22:05] <undecim> It's going to be spinning a spindle with some reflectors on it
[22:05] <Gadgetoid> undecim: you can drive a stepper motor right from the Pibrella's darlington array - https://projects.drogon.net/pibrella-from-pimoroni/
[22:06] <Gadgetoid> ( towards the bottom )
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[22:06] <ozzzy> you'd need a decent low cog motor
[22:06] <Gadgetoid> We used a Pibrella and a stepper to drive a rotating turntable at MFNY
[22:07] <undecim> How smooth would a stepper motor rotate?
[22:07] * bortzmeyer (~stephane@2a01:e35:8bd9:8bb0:21e:8cff:fe76:29b6) Quit (Quit: Leaving.)
[22:07] <ozzzy> as I recall the servomotor on my telescope is only turning about 7.5rpm when tracking
[22:09] <Gadgetoid> Depends on the step angle undecim, the one used in that tutorial turns 5.625 degrees per step
[22:09] <thor77> Gadgetoid: but.. how can i connect this led stripe with the power-adapter to my pi?
[22:09] <ozzzy> get a .9 deg/step motor and 1/2 step it
[22:10] * Ouselay (uid61153@gateway/web/irccloud.com/x-lepmujlyipkdbpwc) Quit (Quit: Connection closed for inactivity)
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[22:10] <thor77> still cant imagine how i should connect this 4 components
[22:12] * undecim does some trig
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[22:13] <undecim> 5.625 might just work
[22:14] * GentileBen (~RaycisCha@cpc5-lutn10-2-0-cust681.9-3.cable.virginm.net) Quit ()
[22:15] <undecim> Steppers might even work better in this project, come to think of it
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[22:54] * bizarro_1 (~bizarro_1@198.Red-88-20-103.staticIP.rima-tde.net) has joined #raspberrypi
[22:55] * torchic_____ (~soemgirl@gateway/tor-sasl/soem-girl) Quit (Remote host closed the connection)
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[22:56] * nimoot (~HomoSapie@unaffiliated/toomin) Quit (Ping timeout: 264 seconds)
[22:56] * hedmon (~hedmon@77.48.114.141) Quit (Quit: see u!)
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[23:00] * bizarro_1 (~bizarro_1@198.Red-88-20-103.staticIP.rima-tde.net) has joined #raspberrypi
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[23:00] * kiely_elsewhere is now known as kiely
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[23:04] * NullMoogleCable (~NullMoogl@cpe-74-74-136-123.rochester.res.rr.com) has joined #raspberrypi
[23:04] * NullMoogleCable (~NullMoogl@cpe-74-74-136-123.rochester.res.rr.com) Quit (Excess Flood)
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[23:05] * ctarx (~ctarx@p54A85220.dip0.t-ipconnect.de) Quit (Quit: Textual IRC Client: www.textualapp.com)
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[23:08] * Syliss (~temp@c-24-23-6-50.hsd1.ca.comcast.net) Quit (Quit: Syliss)
[23:08] * beet0l (~beet0l@cpe-68-174-87-254.nyc.res.rr.com) Quit (Remote host closed the connection)
[23:09] * BluRaf (~BluRaf@093105018083.lowicz.vectranet.pl) Quit (Quit: See ya!)
[23:10] * nils_2 (~nils_2@unaffiliated/nils-2/x-2480262) has joined #raspberrypi
[23:11] * High_Priest (~dark@unaffiliated/high-priest/x-5393239) Quit (Ping timeout: 252 seconds)
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[23:14] * x1337807x (~x1337807x@c-76-115-7-194.hsd1.or.comcast.net) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[23:16] * Mrloafbot_ (~Mrloafbot@d199-74-229-81.try.wideopenwest.com) has joined #raspberrypi
[23:17] <undecim> Do steppers that I can drive without extra hardware even exist?
[23:17] * nefarious (~Nef@unaffiliated/nefarious) Quit (Quit: ZNC - http://znc.in)
[23:18] <abnormal> not really... there is a driver chip that tells the stepper which way and how many steps.
[23:18] <ozzzy> nope
[23:18] * flipp (~flipp@unaffiliated/flipp) Quit (Ping timeout: 240 seconds)
[23:19] <ozzzy> all you might need though is a ULN2003 chip
[23:19] * dj_pi (~dj@c-107-5-228-80.hsd1.mi.comcast.net) Quit (Ping timeout: 272 seconds)
[23:19] <abnormal> and it's best not to drive anything directly from pi.
[23:20] <abnormal> the pi can send signals but not really made to "drive" anything.
[23:20] <Gadgetoid> Pibrella :D
[23:22] * flipp (~flipp@unaffiliated/flipp) has joined #raspberrypi
[23:22] <abnormal> yes
[23:23] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) Quit (Ping timeout: 244 seconds)
[23:25] * hadifarnoud (~hadifarno@162.13.47.212) Quit ()
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[23:28] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) has joined #raspberrypi
[23:33] * _Ulan (~Thunderbi@cpc5-benw11-2-0-cust687.16-2.cable.virginm.net) Quit (Ping timeout: 240 seconds)
[23:37] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) Quit (Ping timeout: 256 seconds)
[23:38] * AndrevS (~andrevs@2001:982:27e5:1:20f:eaff:fe58:28f8) Quit (Quit: Leaving)
[23:39] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) has joined #raspberrypi
[23:40] * pr0t (~NoFace@66-214-120-201.dhcp.hspr.ca.charter.com) has joined #raspberrypi
[23:40] * Lupinedk is now known as lupinedk
[23:40] <pr0t> Hi I want to purchase this for my raspberry pi b+ http://mightyohm.com/blog/products/geiger-counter/ but I want to know what I will need to be able to send the data to my raspberry pi?
[23:40] * darkbasic (~quassel@niko.linuxsystems.it) has joined #raspberrypi
[23:41] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) has joined #raspberrypi
[23:41] * teepee (~teepee@gateway/tor-sasl/teepee) Quit (Ping timeout: 250 seconds)
[23:42] * darkbasic_ (~quassel@niko.linuxsystems.it) Quit (Ping timeout: 276 seconds)
[23:43] * nils_2 (~nils_2@unaffiliated/nils-2/x-2480262) Quit (Ping timeout: 265 seconds)
[23:43] * utack (~utack@ip9234cb8c.dynamic.kabel-deutschland.de) has joined #raspberrypi
[23:44] * malleYay (~malleyay@cable-81-173-135-245.netcologne.de) Quit (Ping timeout: 272 seconds)
[23:46] <abnormal> look in www.raspberrypi.org in the FORUMS section and see if anyone has set one up already. just key in your topic of question in the search box to narrow the search time.
[23:49] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) Quit (Ping timeout: 276 seconds)
[23:49] * teepee (~teepee@gateway/tor-sasl/teepee) has joined #raspberrypi
[23:50] * unixfreak (~unixfreak@cpc4-chap8-2-0-cust102.aztw.cable.virginm.net) has joined #raspberrypi
[23:50] * githogori (~githogori@73.189.225.94) Quit (Ping timeout: 264 seconds)
[23:52] * skyroveRR (~skyroveRR@unaffiliated/skyroverr) Quit (Read error: Connection reset by peer)
[23:56] * githogori (~githogori@c-73-202-10-54.hsd1.ca.comcast.net) has joined #raspberrypi
[23:57] * SL89 (~SL89@unaffiliated/sl89) has joined #raspberrypi

These logs were automatically created by RaspberryPiBot on irc.freenode.net using the Java IRC LogBot.