#raspberrypi IRC Log


IRC Log for 2015-04-15

Timestamps are in GMT/BST.

[21:42] -morgan.freenode.net- *** Looking up your hostname...
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[21:43] * RaspberryPiBot (~raspberry@unaffiliated/datagutt/bot/databot) has joined #raspberrypi
[21:43] * Topic is 'Unofficial RaspberryPi IRC channel but "Blessed" by the Foundation as the ONE channel. Logs @ http://srv.datagutt1.com <> Channel Rules as of 6 May '14: http://tiny.cc/h7za1w <> Getting help on IRC: http://tiny.cc/p9za1w'
[21:43] * Set by ShorTie!~Idiot@unaffiliated/shortie on Thu Jan 29 11:49:50 CET 2015
[21:44] * strobelight (strobeligh@nat/cisco/x-aaweycztzuiozyfr) Quit (Quit: strobelight)
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[21:47] <trinque> hi, when will raspbian move on to jessie?
[21:50] * jaggz (~jaggz-@unaffiliated/jaggz) has joined #raspberrypi
[21:50] <jaggz> What are your opinions on the case I made? http://i.imgur.com/Shi8qzO.png
[21:50] * AdvancedNewbie (~ghost@111.ip-167-114-152.net) has joined #raspberrypi
[21:50] <jaggz> for a B 2.0
[21:50] <ppq> it reminds me of f-zero on snes for some reason
[21:51] * krunkpirate (~krunkpira@unaffiliated/krunkpirate) Quit (Ping timeout: 276 seconds)
[21:51] <jaggz> (the little slats in the top vents are supports for 3d printing.. they break out. The top prints on its end)
[21:52] <Encrypt> Looks good
[21:52] <Encrypt> And futuristic
[21:52] <Encrypt> It looks like a Star Wars spaceship
[21:52] <Encrypt> :D
[21:52] <jaggz> heh :)
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[21:54] <PinkPonyOfDeath> s
[21:54] <PinkPonyOfDeath> nargh
[21:54] <PinkPonyOfDeath> sry
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[21:55] <jaggz> I haven't used the display or camera ribbon connectors, but designed the case so they were accessible, as well as that other header pin connector area (which has no pins on it on my rpi)..
[21:55] <jaggz> but the 26pin header connector access was a main objective
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[22:09] <tawr> jaggz, looks great actually
[22:09] <tawr> maybe make a mount for a 20mm fan?
[22:09] * MarconM (~Marcon@unaffiliated/marconm) Quit (Quit: Leaving)
[22:09] <tawr> have the cutouts there (and slightly stronger) so you can 'pop' the hole to install the fan? but if using no fan, no gaping hole?
[22:10] <tawr> also, maybe some bosses for mounting instead of countersunk holes on the bottom for standoff mounting?
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[22:20] <karlton> ls
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[22:22] <karlton> sorry, ssh lag :(
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[22:33] <Fooman2011> Hello. I'm new in electronic. I'm trying to understand how gamepad button works. Here is a picture of a gamepad pcb. A button has "2 connections" on is connected to GND and the other to an arduino/raspberrypi pin. So when you press the button, the GND is connected to the arduino/raspberrypi pin. But could you please explain me how this sytem can work without any 5V pin somewhere ?
[22:33] <Fooman2011> https://learn.adafruit.com/assets/22157
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[22:41] <mgottschlag> Fooman2011: the rpi/arduino will measure either a high voltage or a low voltage
[22:41] <mgottschlag> if the button is not pressed, then the pin should be connected to +3.3V through a resistor
[22:42] <mgottschlag> that's called a pull-up resistor
[22:42] <mgottschlag> you don't need any positive voltage when the button is pressed (because the button will cause the potential of the pin to be forced to GND)
[22:42] <mgottschlag> but you need a pull-up resistor for the cases when the button is not pressed
[22:42] <mgottschlag> otherwise the pin would not be connected at all (=floating), and the pi/arduino would read random values
[22:43] <mgottschlag> depending on static electricity, environment noise, etc etc
[22:43] <mgottschlag> but both rpi/arduino have internal pull up resistors builtin
[22:43] <mgottschlag> googling "active low button" yields many images if that basic circuit
[22:44] <mgottschlag> (the key here is that the button pulls "stronger" than a resistor (when the button is pressed)
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[23:00] <Fooman2011> ok mgottschlag thanks very much for the info :)
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[23:19] * ahop (ahop@ has joined #raspberrypi
[23:19] <ahop> Hi!
[23:20] <ahop> Is it possible to SSH the pi via USB?
[23:20] <ahop> reason: for my embedded project http://samplerbox.org/, I don't provide an Ethernet plug
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[23:26] <ppq> ahop, https://en.wikipedia.org/wiki/Ethernet_over_USB#Linux_Specific_Driver
[23:26] * mgottschlag (~quassel@reactos/tester/phoenix64) Quit (Ping timeout: 250 seconds)
[23:27] <ppq> it's what you use to ssh into your kindle over usb
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[23:29] <ahop> how does it look like ppq?
[23:29] <ahop> what kind of cable do you use?
[23:30] <ppq> normal usb cable
[23:30] <ppq> it feels exactly like ethernet
[23:30] <ppq> it looks exactly like usb
[23:30] <ahop> RaspPi <-- micro USB or RaspPi <--- USB A
[23:31] <ppq> i think the raspi microusb port is just for power, not data
[23:31] * pksato (~PEBKAC@unaffiliated/pksato) has joined #raspberrypi
[23:31] <ahop> ok so USB A then?
[23:31] <ppq> yes
[23:31] <ahop> how do oyu connect this to computer then?
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[23:33] <ahop> ppq there are no RaspPi == USB A <--> USB A == computer cable
[23:34] <ppq> yea because that's against the usb specifications
[23:34] <ppq> but those things do exist
[23:35] <ahop> yes
[23:35] <ppq> an adapter might be easier to find
[23:35] <ahop> I can build one by soldering
[23:35] <ahop> but that's dirty
[23:35] <ahop> do you *really* need a USB A <--> USB A hacked cable for Ethernet via USB?
[23:36] <shiftplusone> even if you have the cable, it won't work.
[23:36] * Kaboon (~Kaboon@524A76E8.cm-4-3b.dynamic.ziggo.nl) Quit (Ping timeout: 244 seconds)
[23:36] <shiftplusone> the best you can do is add a usb ethernet adapter
[23:37] <ahop> raspberry's micro USB cannot data?
[23:38] * Kaboon (~Kaboon@524A76E8.cm-4-3b.dynamic.ziggo.nl) has joined #raspberrypi
[23:38] <ahop> it seems that No: http://raspberrypi.stackexchange.com/a/8590/12350
[23:38] <plugwash> The micro USB connector on the Pi has no data connections.
[23:38] <plugwash> Also you can't just connect a USB A-A cable between two USB ports and expect things to work. USB doesn't work that way.
[23:39] <ahop> yes exactly plugwash
[23:39] <ahop> that's what I thought as well
[23:39] <ahop> I'm building an embedded device
[23:40] <ahop> What I would like is: I connect the Pi to PC via USB, and I can upload files from PC ---> Raspberry Pi
[23:40] <ahop> like when you connect phone to PC
[23:40] <ahop> the phone is seen as a "Mass Storage"
[23:40] <plugwash> On the Pi model A/A+ it's theoretically possible to make the USB port work in device mode but I've not seen any reports of anyone getting it to work successfully under linux. On the B/B+/2B it is not possible to use the USB port in device mode.
[23:40] <ahop> and you can upload
[23:42] <ahop> posssible to see RPi as "Mass Storage" like a phone?
[23:43] <ozzzy_> hmmm... my pi just spewed a whole pile of kernel dumps
[23:43] <plugwash> theoretically possible on the A/A+ but I've never seen anyone demonstrate a working setup, definately not possible on the B/B+/2B
[23:43] <pksato> you can use other pc/mac/desktop/netbook/etc as "Mass Storage"?
[23:44] <ozzzy_> pis aren't pcs/macs/desktops/notebooks
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[23:45] <pksato> for USB perspective is.
[23:45] * AdvancedNewbie (~ghost@111.ip-167-114-152.net) Quit (Ping timeout: 240 seconds)
[23:47] * plugwash slaps pksato arround a bit with a large trout
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[23:48] <ahop> so impossible to emulat phone behaviour
[23:48] <ahop> PC <--> phone
[23:49] <pksato> NO.
[23:49] <ahop> then you see phone's SDcard in the Explorer
[23:49] <ahop> Ok!
[23:49] <ozzzy_> last thing I want my pi to do is emulate my phone
[23:49] <ahop> me too of course
[23:49] <ahop> but I was only speaking about the USB behaviour
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[23:49] <ozzzy_> my phone has no usb
[23:49] <brennen> ahop: outta curiosity, what's your use case?
[23:50] <plugwash> ahop> so impossible to emulat phone behaviour <-- as I have already said it's theoretically possible on the A/A+ but i've never seen anyone demonstrate it working, it's not possible on the B/B+/2B
[23:50] * McBride36 is now known as McAFK
[23:50] <brennen> media file transfer or the like?
[23:50] <ahop> brennen: http://samplerbox.org/ I have now a working prototype
[23:50] <ahop> but as you can see, there is no Ethernet plug
[23:50] <ahop> so I'm looking for a solution to upload new data to the Pi (embedded)
[23:50] <brennen> ah, neat. :)
[23:51] <pksato> RPi B/B+/2B USB is a HOST port. Not a Guest.
[23:51] <ahop> ok
[23:51] <brennen> what about wifi?
[23:51] <ozzzy_> the 9514 COULD be setup
[23:51] <ahop> brennen too complicated to steup
[23:51] <ozzzy_> but it would take a reengineer
[23:51] <ahop> setup
[23:51] <brennen> just as a thought experiment, what if it just came out of the box as an access point?
[23:51] * sim642 (~sim642@205-29-190-90.dyn.estpak.ee) Quit (Ping timeout: 245 seconds)
[23:52] <brennen> connect to pi's network and push files via filesharing to some host on that network?
[23:52] <ahop> brennen hum yes this would be nice...
[23:52] <brennen> (samba / ssh / custom web interface / whatever)
[23:52] <ahop> brennen is there a way to have out of the box network access point, that can be easily accessed from Windows as well?
[23:53] <brennen> i think maybe you could do that - one sec
[23:53] <pksato> yes, network can be used to transfer files, cable, wifi, bluetooth, etc.
[23:54] <ahop> pksato can it be made really simple for final user?
[23:54] <ahop> ie a windows user can easily send things to the Pi via wifi
[23:54] <ahop> without having to open the "box" ?
[23:54] <pksato> yes
[23:54] * nyilmeregbeka (~textual@catv-176-63-109-33.catv.broadband.hu) Quit (Quit: Textual IRC Client: www.textualapp.com)
[23:54] <ozzzy_> ahop, it's as simple as opening a file manager
[23:54] <ahop> how would it work?
[23:55] <ozzzy_> windows networking/samba, nfs [shrug]
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[23:55] <pksato> you never used a networked computers?
[23:55] <brennen> we've got a package up that configures as an access point:
[23:55] <brennen> https://github.com/adafruit/Adafruit-Occidentalis/tree/master/packages/adafruit-ap
[23:55] <ahop> pksato sure i did
[23:55] * jmw (~jmw@pool-96-224-91-91.nycmny.fios.verizon.net) Quit (Quit: leaving)
[23:55] <ahop> but my mother wouldn't be able to do it
[23:55] <ahop> I'm looking for a solution that my mother could use
[23:56] <brennen> https://learn.adafruit.com/setting-up-a-raspberry-pi-as-a-wifi-access-point/overview
[23:56] <pksato> put a shortcut on desktop
[23:56] <ozzzy_> ahop, can your mother use windows explorer?
[23:56] <ahop> yes
[23:56] <ozzzy_> then she can transfer files with a pi
[23:56] <ahop> but will the Pi's SDcard appear in the explorer, without having to do anything?
[23:56] <pksato> one of milions icons to access some thing.
[23:56] <brennen> you'd want to tweak since you're not routing traffic through the pi to anywhere else, but in principle i think it'd be pretty workable.
[23:56] <ozzzy_> ahop, yes
[23:56] <ozzzy_> what else would it show
[23:57] <ahop> ozzzy_ what would be needed for that?
[23:57] * chaotic (~chaotic@unaffiliated/chaotic) Quit (Ping timeout: 252 seconds)
[23:57] <ozzzy_> a mouse, a keyboard and a monitor
[23:57] <ahop> have a Samba running
[23:57] <ahop> or something like this, on Pi?
[23:57] <ahop> or not needed?
[23:57] * RaptorJesus (~RaptorJes@unaffiliated/raptorjesus) Quit (Remote host closed the connection)
[23:57] <ozzzy_> it's just a computer.... the desktop shows up... open the file manager... select the folder... manage the files
[23:57] <ozzzy_> just like windows/mac/etc
[23:58] * cdbob (~cdbob@gateway/vpn/privateinternetaccess/cdbob) has joined #raspberrypi
[23:58] <ahop> ozzzy_ I mean: if I want to view Pi's SD card from network on Windows
[23:58] <ahop> I need a Samba or not?
[23:58] <ozzzy_> then share it
[23:58] <ozzzy_> yep... use samba
[23:58] <pksato> ahop: yes, need samba
[23:58] <ahop> ok
[23:59] <ahop> so if: 1/ wifi card as access point + 2/ samba
[23:59] <pksato> samba is linux implementation of windows file sharing service.
[23:59] <ahop> 3/ the PC connects the wifi "RaspberyPi acess point" 4/ he will see the Pi in the shared
[23:59] <ahop> right?
[23:59] <pksato> ah?

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