#raspberrypi IRC Log

Index

IRC Log for 2017-12-29

Timestamps are in GMT/BST.

[0:01] * webdev007 (~webdev007@45.72.236.145) has joined #raspberrypi
[0:02] * webdev007 (~webdev007@45.72.236.145) Quit (Max SendQ exceeded)
[0:02] <extor> Is the linux partition on the sdcard configured for hard writes to disk or is does it write all the changes to a UNIONFS and discard them after being powered off?
[0:03] * webdev007 (~webdev007@45.72.236.145) has joined #raspberrypi
[0:03] * GenBurnside (~GenBurnsi@209.208.228.244) Quit (Read error: Connection reset by peer)
[0:05] * Mikelevel (~MoVeWoRk@unaffiliated/mikelevel) Quit (Remote host closed the connection)
[0:06] * sunn (~sunn@cpc97878-walt21-2-0-cust10.13-2.cable.virginm.net) has joined #raspberrypi
[0:15] * blackswan (~blackswan@c-76-100-50-18.hsd1.md.comcast.net) has joined #raspberrypi
[0:15] <blackswan> i am trying to install ubuntu mate on a raspberry pi 3 from a usb stick with the image from the web site and having no luck.
[0:16] <blackswan> when i try to boot the pi from the usb drive, nothing happens unless the sd card with the running ubuntu system i'm trying to overwrite is inserted. no video, no lights on the thumb drive, no nothing.
[0:16] * Keanu73 (~Keanu73@2ProIntl/User/Geek/Keanu73) Quit (Read error: Connection reset by peer)
[0:16] <blackswan> if the sd card is inserted, it boots from the sd card instead of the usb stick.
[0:16] <BurtyB> blackswan, did you set the OTP to enable booting from USB?
[0:17] * Lorduncan (~Thunderbi@static-68-86-61-95.ipcom.comunitel.net) has joined #raspberrypi
[0:17] <blackswan> yes. i have done this before with a different image but the same pi and the same set of thumb drives.
[0:17] <blackswan> so i *know* i can make this work with what i have on hand.
[0:17] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) has joined #raspberrypi
[0:17] <blackswan> i have tried dd'ing the image from the ubuntu mate web site onto four different thumb drives with the same results.
[0:18] <blackswan> all are 16gb, three are sandisk, the fourth is a gorilla drive
[0:18] * xtore (~extor@192.99.217.240) has joined #raspberrypi
[0:18] <blackswan> no, miscounted.
[0:18] <BurtyB> can you see the fat partition on the usb after you've written the image?
[0:18] <blackswan> there's a fifth that is 16gb and isn't sandisk and isn't a gorilla drive that i tried.
[0:19] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) Quit (Remote host closed the connection)
[0:19] * yohnnyjoe (~yohnnyjoe@c-73-129-2-10.hsd1.dc.comcast.net) has joined #raspberrypi
[0:19] <blackswan> i know what you are getting at, burtyb, and i have not confirmed that i can do that on all of them, but i know i could on some of them.
[0:19] <blackswan> except i haven't confirmed it's FAT
[0:19] <blackswan> lemme collect 'em and look.
[0:22] * sunn (~sunn@cpc97878-walt21-2-0-cust10.13-2.cable.virginm.net) Quit (Ping timeout: 248 seconds)
[0:22] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[0:23] * Goldschlager120 (~Goldschla@24-111-126-57-dynamic.midco.net) has joined #raspberrypi
[0:23] <blackswan> ok, chromebook acting a bit weird. rebooting it.
[0:23] * blackswan (~blackswan@c-76-100-50-18.hsd1.md.comcast.net) Quit (Remote host closed the connection)
[0:24] * sunn (~sunn@55.3e.32a9.ip4.static.sl-reverse.com) has joined #raspberrypi
[0:24] * Kozuch (~Kozuch@81.0.198.168) has joined #raspberrypi
[0:26] * blackswan (~quarkbudd@c-76-100-50-18.hsd1.md.comcast.net) has joined #raspberrypi
[0:29] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 252 seconds)
[0:30] * mossman93 (~mossman93@unaffiliated/mossman93) has joined #raspberrypi
[0:31] <blackswan> each of them show up on my chromebook with a PI_BOOT vfat filesystem and a PI_ROOT ext4 filesystem, as they should be.
[0:32] <blackswan> should i expect a raspberry pi 3 to be able to boot from a 16gb gorilladrive? i realize some devices may not work.
[0:36] * mujjingun (uid228218@gateway/web/irccloud.com/x-rtgzirtikijhvstj) has joined #raspberrypi
[0:37] <blackswan> my life depends on getting this to work
[0:37] <blackswan> or understanding why it will not work
[0:38] * current_user (~current_u@185.156.175.188) has joined #raspberrypi
[0:38] * Noldorin (~noldorin@unaffiliated/noldorin) has joined #raspberrypi
[0:39] * ShorTie wonders what a 'gorilladrive' is .. :/~
[0:39] <blackswan> ruggedized usb thumb drive
[0:40] <blackswan> https://www.amazon.com/EP-Memory-Gorilladrive-Flash-EP-GDUSB/dp/B00CRMKFFY
[0:40] <ShorTie> don't see why not
[0:40] <blackswan> neither do i, however, the gorilladrive is new, so i do not know whether it worked previously or not.
[0:41] * asteele (~cronoh@ip72-223-6-72.ph.ph.cox.net) Quit (Ping timeout: 240 seconds)
[0:41] <blackswan> one of the others must have worked in the past.
[0:42] * Maai (~pi@91.34.189.80.dyn.plus.net) has joined #raspberrypi
[0:42] <Maai> any sonic pi channels around?
[0:43] <blackswan> i suppose it is possible that i misremember and i never got this to work and got it to work some other way. however, that would have required some way to get the ubuntu image on to the micro sd card on some other device.
[0:44] * Noldorin (~noldorin@unaffiliated/noldorin) Quit (Ping timeout: 252 seconds)
[0:44] <blackswan> but i don't know where my adapters are, and i didn't know at the time i know i did this before, and i don't remember searching for them or finding them.
[0:46] * knob (~knob@172.56.4.47) has joined #raspberrypi
[0:46] * knob (~knob@172.56.4.47) Quit (Remote host closed the connection)
[0:46] <Maai> so you were successful?
[0:47] <ShorTie> did you try the old way by change cmdline.txt ??
[0:47] <ShorTie> with the image on both sdcard and usb drive
[0:47] <blackswan> what's the "old way"?
[0:48] <ShorTie> write the image to both sdcard and usb drive
[0:49] <ShorTie> then change cmdline.txt to root=/dev/sda2 in/on the sdcard
[0:49] * cyphase (~cyphase@unaffiliated/cyphase) Quit (Ping timeout: 240 seconds)
[0:50] * Noldorin (~noldorin@unaffiliated/noldorin) has joined #raspberrypi
[0:50] * InverseRhombus (~InverseRh@5.151.224.5) has joined #raspberrypi
[0:50] <blackswan> i haven't done any fiddling around.
[0:51] * wgas (~wgas@unaffiliated/wgas) Quit (Remote host closed the connection)
[0:52] * easzero (~easzero@2a02:908:4c4:f300:644d:3ef9:a7a:f4f6) has joined #raspberrypi
[0:53] <blackswan> dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles init=/usr/lib/raspi-config/init_resize.sh
[0:54] * cyphase (~cyphase@unaffiliated/cyphase) has joined #raspberrypi
[0:54] <blackswan> is the cmdline.txt from the ubuntu mate image, however, it isn't even making the display active when i try to boot from the usb drive. i don't think it is at the point of parsing kernel command line parameters.
[0:54] <blackswan> maybe the ubuntu mate image is meant to be put on an sd card.
[0:55] <blackswan> that could be my problem...
[0:55] <Maai> mmc0 is the card, mmcblk is the (block) device iguess
[0:55] <ShorTie> change root=/dev/mmcblk0p2 too root=/dev/sda2
[0:55] <ShorTie> you might need to play with the fstab too...
[0:58] <cnnx> is there anything else i can try to do to revive my sdcard
[0:58] <cnnx> before ordering a new one
[0:58] * BeamWatcher (~gashead76@208.117.74.236) Quit (Ping timeout: 240 seconds)
[0:58] <bobstro> cnnx: still trying, eh?
[0:58] <cnnx> i just finished work
[0:58] <cnnx> so thinking i should order one
[0:58] <cnnx> but im tight on money
[0:58] <cnnx> so just checking
[0:59] <blackswan> is the boot process documented somewhere?
[1:00] <blackswan> changing cmdline.txt isn't going to do anything if it never reads the file
[1:00] <blackswan> what reads the file?
[1:01] <cnnx> whats the best quality brand i can buy for sdcard
[1:01] <cnnx> for the rpi
[1:01] <cnnx> so it doesnt fail again
[1:01] <cnnx> i had a canakit 32gb now
[1:01] <blackswan> found https://www.raspberrypi.org/documentation/configuration/config-txt/README.md
[1:01] <bobstro> none can be guaranteed to never fail. my favorite are samsung evo, although sandisk are also good.
[1:01] <AntiComposite> Make sure you get a class 10, and big enough
[1:02] <bobstro> blackswan: it's a 3 stage bootloader. unfortunately, i didn't save the best links, but they're out there.
[1:02] <Maai> if you could trust me i'd buy you one and have it sent to you
[1:02] <blackswan> ah. the GPU is what reads config.txt from the sd card
[1:03] * joro_ (~joro_@94.190.193.202) Quit (Quit: Leaving)
[1:03] * msev- (msev-@gateway/shell/panicbnc/x-adumojutqubgtann) Quit (Quit: PanicBNC - http://PanicBNC.net)
[1:03] <blackswan> that's before linux runs, and may be before cmdline.txt is read. i bet the gpu reads cmdline.txt to see what arguments to give linux when it runs on the arm chip
[1:04] * BeamWatcher (~gashead76@208.117.74.236) has joined #raspberrypi
[1:04] * d4re- (~d4re@gateway/tor-sasl/d4re) has joined #raspberrypi
[1:05] <cnnx> the rpi is fun
[1:05] <cnnx> possibilities are endless
[1:06] <bobstro> blackswan: this one gives a good summary - http://wiki.beyondlogic.org/index.php?title=Understanding_RaspberryPi_Boot_Process
[1:06] * d4re (~d4re@gateway/tor-sasl/d4re) Quit (Ping timeout: 272 seconds)
[1:06] * d4re- is now known as d4re
[1:07] * clemens3 (~clemens@80-218-38-71.dclient.hispeed.ch) Quit (Ping timeout: 252 seconds)
[1:09] * msev- (msev-@gateway/shell/panicbnc/x-xujsafbrmgdybega) has joined #raspberrypi
[1:11] <blackswan> without the sd card installed it should still be trying to load the kernel and cmdline.txt from the usb drive.
[1:12] <blackswan> the kernel should then start to complain because it sees root=the sd card and the sd card isn't there, but it never gets that far along in the process.
[1:12] <blackswan> i'm starting to believe that the only usb drive i have that worked must be the 128gb drive i haven't tried yet.
[1:13] <blackswan> or i may be insane.
[1:15] <blackswan> or both
[1:15] <bobstro> everything i've read says that the microsd card is required.
[1:15] <cnnx> this is my faulty card that can't be overwritten
[1:15] <bobstro> 2nd stage bootloader (bootcode.bin) read ONLY from sdcard.
[1:15] <cnnx> www.lzd.ca/sd.jpg
[1:15] <cnnx> just took a picture
[1:15] <cnnx> is it a band brand?
[1:16] <cnnx> is this one of the 10 thing rating?
[1:16] <bobstro> hard to say, but canakit generally produce quality stuff. i notice they show sandisk in a lot of recent adds.
[1:16] * dalmata (~dalmatHG@unaffiliated/dalmathg) has joined #raspberrypi
[1:16] <AntiComposite> I've never seen CanaKit SD cards before, and have no idea which ones they're rebadeging
[1:16] <bobstro> the "10" in the circle shows class 10, but you'll see U1 also for newer cards.
[1:17] <Maai> pi doesnt like over 32gb
[1:17] <cnnx> should i buy a 16gb
[1:17] <cnnx> as my next one
[1:17] <cnnx> cheaper and better?
[1:18] <Maai> i have 16. i like it
[1:18] <kerio> Maai: [citation needed]
[1:19] <cnnx> whichi is better
[1:19] <kerio> worked just fine with a 128gb microsd i have
[1:19] <cnnx> lexar or sandisk
[1:19] <bobstro> 32 GB are fine. i just buy whatever's $12 locally.
[1:19] <bobstro> lately samsung evo select 32 GB are $10 on Amazon US
[1:20] * easzero (~easzero@2a02:908:4c4:f300:644d:3ef9:a7a:f4f6) Quit (Quit: Leaving)
[1:23] * tonythomas (uid25971@wikimedia/-01tonythomas) Quit (Quit: Connection closed for inactivity)
[1:27] * m_t (~m_t@93.218.43.221) Quit (Quit: Leaving)
[1:36] * Lorduncan (~Thunderbi@static-68-86-61-95.ipcom.comunitel.net) Quit (Quit: Lorduncan)
[1:40] * Syliss (~Hobomobo@asa1.digitalpath.net) Quit (Remote host closed the connection)
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[1:42] <blackswan> bobstro: "Once this bit has been set, the SD card is no longer required." source: https://www.raspberrypi.org/documentation/hardware/raspberrypi/bootmodes/msd.md perhaps i misconstrue something
[1:43] * swift110 (~swift110@unaffiliated/swift110) Quit (Remote host closed the connection)
[1:44] <Maai> my knowledge is all booting data is held on the card
[1:45] <Maai> no card = pretty light
[1:45] * asteele (~cronoh@ip67-155-240-118.z240-155-67.customer.algx.net) has joined #raspberrypi
[1:47] <blackswan> the requisite files are on the usb drive, i just can't make it read them from there
[1:48] <blackswan> or, it is reading them and bad things are happening
[1:48] <blackswan> i can't tell the difference.
[1:48] * Gathis (~TheBlack@unaffiliated/gathis) Quit (Remote host closed the connection)
[1:49] <blackswan> either the usb drive doesn't come first, or it isn't trying, because when the sd card is in, it boots from that.
[1:49] <Maai> is the pi your first trials with linux? after leaving Windows computers got 100x harder
[1:49] <blackswan> or, as i said, i need to use the 128gb drive i haven't tried yet
[1:49] <blackswan> maai, i have been using unix since 1985. i used minix, same as linus.
[1:50] <blackswan> this isn't my first rodeo
[1:51] <Maai> why are you not leading us to the promise land then?
[1:52] <Maai> im finding it ultimately hard to print out what my ACT light is doing
[1:52] <blackswan> i'm trying. i got stuff to do.
[1:52] * AntiComposite is now known as ProComposite
[1:53] <blackswan> the pi is the serial console for ghostwheel, my aurora alienware r6
[1:53] <Maai> too much slang
[1:54] <blackswan> slang?
[1:54] * ProComposite is now known as AntiComposite
[1:54] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 268 seconds)
[1:55] * mossman93 (~mossman93@unaffiliated/mossman93) has joined #raspberrypi
[1:55] <Maai> your pi is hooked up to a powerful desktop?
[1:55] <blackswan> yes.
[1:56] * dalmata (~dalmatHG@unaffiliated/dalmathg) Quit (Quit: KVIrc 4.2.0 Equilibrium http://www.kvirc.net/)
[1:56] <blackswan> well, i disconnected the usb serial cable because one of the thumb drives didn't fit if it was connected
[1:56] <blackswan> but yes
[1:56] * DeadTOm (~deadtom@2001:4b98:dc0:41:216:3eff:fe58:44d0) Quit (Quit: DeadTOm)
[1:56] * dalmata (~dalmatHG@unaffiliated/dalmathg) has joined #raspberrypi
[1:57] <blackswan> i bought it because i needed a serial console for ghostwheel, and i can also do other things with it. i'm getting around to the other things now.
[1:57] * Chromius (uid92941@gateway/web/irccloud.com/x-lzwhjocydyewvbfq) has joined #raspberrypi
[1:57] <blackswan> nowish.
[1:57] * swift110 (~swift110@unaffiliated/swift110) has joined #raspberrypi
[1:59] <cnnx> is there a way to power the rpi other than the 120AC adapter it ships with?
[1:59] <cnnx> like usb or dc?
[1:59] <cnnx> im powering it from a solar installation
[1:59] <cnnx> or do i need a small inverter?
[1:59] <blackswan> isn't the ac adapter an ac->micro usb thingy? that's what my pi 3's looks like.
[2:00] <cnnx> yes
[2:00] <cnnx> but i need to power it from a 12vdc battery
[2:00] <cnnx> is tehre an adapter from 12vdc to micro usb?
[2:00] <cnnx> let me search
[2:00] <blackswan> https://www.raspberrypi.org/documentation/hardware/raspberrypi/power/README.md
[2:02] <blackswan> car batteries are 12v, are they not? there must be something
[2:02] <blackswan> because there are car chargers.
[2:02] <Maai> usb SERIAL? two different ports all together
[2:02] <cnnx> https://www.amazon.ca/MagiDeal-Inverter-Converter-Charger-Recorder/dp/B06XBXFGRX/ref=sr_1_4?ie=UTF8&qid=1514509326&sr=8-4&keywords=12v+micro+usb+charger
[2:02] <cnnx> this would work right?
[2:02] <cnnx> red and black from 12vdc
[2:02] <cnnx> and the other then 5vdc micro usb
[2:03] <cnnx> i wouldnt need ana inverter
[2:04] <Maai> cnnx: i purchased the power adapter for 5 pounds and never needed it. it plugs into a usb hole that gives th 5V needed
[2:04] * mschorm (~mschorm@ip-78-102-201-117.net.upcbroadband.cz) has joined #raspberrypi
[2:05] <blackswan> cnnx, that looks like it should work
[2:05] <cnnx> blackswan: cool is it mini or micro usb i need
[2:06] <cnnx> trying to find specs for rpi3b
[2:07] * kw21 (~kw21@D978E830.cm-3-1d.dynamic.ziggo.nl) Quit (Quit: Leaving)
[2:08] * d1z (~gt@unaffiliated/gtt) Quit (Ping timeout: 256 seconds)
[2:08] <blackswan> idk. probably micro.
[2:10] <blackswan> "POWER 1. WHAT ARE THE POWER REQUIREMENTS? The device is powered by 5V micro-USB."
[2:10] <blackswan> https://www.raspberrypi.org/help/faqs/#power
[2:10] <cnnx> yeah micfro
[2:10] <cnnx> just checked
[2:11] * collyrium (~godlessfa@unaffiliated/godlessfather) Quit (Read error: Connection reset by peer)
[2:11] * akk (~akkana@75-161-91-17.albq.qwest.net) has joined #raspberrypi
[2:11] * Rev_Illo (~revillo@unaffiliated/rev-illo/x-3122184) has joined #raspberrypi
[2:12] * collyrium (~godlessfa@unaffiliated/godlessfather) has joined #raspberrypi
[2:12] <Maai> not happy with the bash help menu that shows no clue to search files or folders
[2:12] <Maai> dirs
[2:13] * neopss (~neops@unaffiliated/neops) Quit (Quit: Leaving)
[2:14] <blackswan> you want the "find" command
[2:14] <blackswan> if you are searching filenames, not contents
[2:14] <blackswan> searching contents, grep/egrep
[2:15] * asteele (~cronoh@ip67-155-240-118.z240-155-67.customer.algx.net) Quit (Ping timeout: 248 seconds)
[2:15] <blackswan> among others, of course. i am merely showing you the ancient ways.
[2:16] <akk> The syntax isn't super clear. The most common case: find folder-to-start-in -name '*pattern-to-search-for*'
[2:16] <blackswan> they are not always the best, but they have the advantage of being fairly consistent across every computer system with unix heritage
[2:16] <akk> There's also locate, which is much faster than find and searches the whole disk, but you have to install it and update the database periodically.
[2:17] <blackswan> yes. i prefer locate, generally.
[2:18] <blackswan> locate is from bsd, originally, i believe.
[2:19] <blackswan> just put all your files on a public web server and let google index them
[2:20] <Maai> find doesnt even want to attempt a search in root
[2:20] <blackswan> it doesn't?
[2:20] <blackswan> problem with starting in / these days with find is /proc and /sys and such
[2:21] <blackswan> you don't want to go reading those willy nilly.
[2:21] <blackswan> so i usually use -xdev
[2:21] * yohnnyjoe (~yohnnyjoe@c-73-129-2-10.hsd1.dc.comcast.net) Quit (Ping timeout: 240 seconds)
[2:23] * Rev_Illo (~revillo@unaffiliated/rev-illo/x-3122184) Quit (Ping timeout: 252 seconds)
[2:24] * cstk421 (~cstk421@c-68-41-25-112.hsd1.mi.comcast.net) Quit (Read error: Connection reset by peer)
[2:24] <Maai> the filesystem is a 13 year olds junk yard bedroom to me now
[2:25] <Maai> dev proc sys var boot etc
[2:26] <Maai> Windows and unix is all I know. maybe others could be more intuitive for me
[2:26] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[2:27] * pm001 (~pac@p57B83D77.dip0.t-ipconnect.de) Quit (Ping timeout: 265 seconds)
[2:28] <Maai> reboot
[2:28] * Maai (~pi@91.34.189.80.dyn.plus.net) has left #raspberrypi
[2:30] * shakes (~shakes@gateway/vpn/privateinternetaccess/shakes) has joined #raspberrypi
[2:31] * Zparx (~Fox@p200300CD63CBC4003D5E2C120D55B4DE.dip0.t-ipconnect.de) Quit (Ping timeout: 255 seconds)
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[2:35] * dreamon_ (~dreamon@unaffiliated/dreamon) Quit (Ping timeout: 240 seconds)
[2:36] * akk (~akkana@75-161-91-17.albq.qwest.net) Quit (Quit: +++)
[2:36] <blackswan> well, i can't make progress until i back up these 45GB of virtual machines somewhere so i can use the usb drive i haven't tried yet, so i'm going to go buy some snapple and gift cards for my kids, because a watched backup never completes.
[2:43] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 256 seconds)
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[2:48] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 256 seconds)
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[2:59] * dalmata (~dalmatHG@unaffiliated/dalmathg) Quit (Quit: KVIrc 4.2.0 Equilibrium http://www.kvirc.net/)
[2:59] * victorhck (~victorhck@opensuse/member/victorhck) Quit (Ping timeout: 248 seconds)
[3:01] * swift110 (~swift110@unaffiliated/swift110) Quit (Ping timeout: 260 seconds)
[3:04] * Dimik (~Dimik@ool-182e2df5.dyn.optonline.net) Quit (Ping timeout: 260 seconds)
[3:08] * Maai (~pi@91.34.189.80.dyn.plus.net) has joined #raspberrypi
[3:10] * blackswan (~quarkbudd@c-76-100-50-18.hsd1.md.comcast.net) Quit (Ping timeout: 268 seconds)
[3:16] <Maai> hands up if you are asleep
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[3:17] * current_user (~current_u@185.156.175.188) Quit (Quit: Leaving)
[3:19] * Kozuch (~Kozuch@81.0.198.168) Quit (Ping timeout: 240 seconds)
[3:22] * Maai (~pi@91.34.189.80.dyn.plus.net) has left #raspberrypi
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[3:28] * blackswan (~blackswan@c-76-100-50-18.hsd1.md.comcast.net) has joined #raspberrypi
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[3:29] * Noldorin (~noldorin@unaffiliated/noldorin) Quit (Quit: Textual IRC Client: www.textualapp.com)
[3:31] <IT_Sean> Shh... Iz kwiiet teim.
[3:39] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) Quit (Ping timeout: 248 seconds)
[3:43] * [SLB] (~slabua@unaffiliated/slabua) Quit (Ping timeout: 276 seconds)
[3:45] * u42p (~u42p@port-92-196-50-248.dynamic.qsc.de) Quit (Ping timeout: 268 seconds)
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[3:50] * Colti (Miramar-FL@unaffiliated/colti) Quit (Excess Flood)
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[3:52] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) has joined #raspberrypi
[3:52] <Quantum_> hola
[3:52] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[3:56] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) Quit (Excess Flood)
[3:57] * Quantum_ (6219e901@gateway/web/freenode/ip.98.25.233.1) Quit (Quit: Page closed)
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[4:18] * eripa (~eripa@h-170-182.A183.priv.bahnhof.se) Quit (Ping timeout: 268 seconds)
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[4:21] * blackswan (~blackswan@c-76-100-50-18.hsd1.md.comcast.net) Quit (Ping timeout: 256 seconds)
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[4:33] * sir_galahad_ad (~aaron@cpe-76-179-65-199.maine.res.rr.com) Quit (Ping timeout: 272 seconds)
[4:33] * Arcaelyx (~Arcaelyx@2601:646:c200:27a1:dcf0:9925:cfa0:2bfa) has joined #raspberrypi
[4:37] * baldengineer (~cmiyc@unaffiliated/cmiyc) Quit (Quit: Connection reset by beer)
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[4:40] * energizer (~energizer@unaffiliated/energizer) Quit (Disconnected by services)
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[4:43] * webdev007 (~webdev007@45.72.236.145) Quit (Remote host closed the connection)
[4:43] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) Quit (Ping timeout: 248 seconds)
[4:44] <Maai> i have disabled javascript. any radio playback software on linux?
[4:48] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) has joined #raspberrypi
[4:48] * Chromius (uid92941@gateway/web/irccloud.com/x-lzwhjocydyewvbfq) Quit (Quit: Connection closed for inactivity)
[4:50] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 272 seconds)
[4:51] * r0Oter (~r00ter@p54BB6049.dip0.t-ipconnect.de) has joined #raspberrypi
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[4:51] * r00ter (~r00ter@p54BB62FC.dip0.t-ipconnect.de) Quit (Disconnected by services)
[4:51] * djk (~Thunderbi@pool-96-242-33-206.nwrknj.fios.verizon.net) has joined #raspberrypi
[4:53] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) has joined #raspberrypi
[4:57] * Maai (~pi@80.189.34.91) Quit (Remote host closed the connection)
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[5:01] * Ivoah (uid49352@gateway/web/irccloud.com/x-nyfsggovqtmefuyx) Quit (Quit: Connection closed for inactivity)
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[5:05] * tfitts (uid158900@gateway/web/irccloud.com/x-oadraobpcbehglbo) Quit (Quit: Connection closed for inactivity)
[5:05] * taza (~taza@unaffiliated/taza) Quit ()
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[5:07] * pennTeller (~pennTelle@unaffiliated/pennteller) Quit (Read error: Connection reset by peer)
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[5:10] <Maai> omg! aLL ovER thE PLACe! 3d engines for raspberry?
[5:12] * pennTeller (~pennTelle@unaffiliated/pennteller) Quit (Ping timeout: 264 seconds)
[5:12] <{HD}> I want to have a very simple gui for controlling some gpio pins. Can I build that on raspbian lite?
[5:13] <{HD}> I want to build maybe a 5 button interface...
[5:14] * v01d4lph4 (~silent_fr@122.162.122.230) Quit (Remote host closed the connection)
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[5:18] * tnewman (~pi@36-227-120-136.dynamic-ip.hinet.net) Quit (Ping timeout: 276 seconds)
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[5:22] * malhelo_ (~malhelo@dslb-088-066-150-060.088.066.pools.vodafone-ip.de) has joined #raspberrypi
[5:24] * Noldorin (~noldorin@unaffiliated/noldorin) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[5:25] * drewmcmillan (~drewmcmil@cpc77022-warw18-2-0-cust494.3-2.cable.virginm.net) Quit (Quit: My MacBook has gone to sleep. ZZZzzz…)
[5:25] * daynaskully (~dskull@unaffiliated/daynaskully) Quit (Ping timeout: 256 seconds)
[5:26] <Maai> i bet if I found the right folder and command it would print "you have just found a dead body here!" because unix is such a mineclutter
[5:26] * malhelo (~malhelo@dslb-088-065-189-251.088.065.pools.vodafone-ip.de) Quit (Ping timeout: 252 seconds)
[5:26] <Maai> {HD}: will you be using Python?
[5:26] <{HD}> Can I have kivy run on a no DE os?
[5:27] <{HD}> Maai: I could use python.
[5:27] <Maai> what would you prefer?
[5:28] <{HD}> Lets use python...
[5:28] <{HD}> I guess I would prefer something fast and light
[5:28] <{HD}> But good loking
[5:28] <{HD}> Looking*
[5:30] <Maai> ok
[5:30] * daynaskully (~dskull@unaffiliated/daynaskully) has joined #raspberrypi
[5:30] * An_Onion is now known as Anorion
[5:30] <Maai> im looking at python stuff neaw
[5:30] * tnewman (~pi@36-227-120-136.dynamic-ip.hinet.net) has joined #raspberrypi
[5:31] <Maai> i know of tkinter GUI already
[5:31] <Maai> kivy is for android?
[5:32] <Maai> tkinter is more default
[5:33] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) has joined #raspberrypi
[5:35] <{HD}> Hum... Ill check out tkinter. My goal is to have only it running. No Pixel DE for instance.
[5:35] <Maai> vat is DE?
[5:35] <{HD}> Desktop environment
[5:37] <Maai> ah. i have heard of bare metal operation.
[5:37] * djk (~Thunderbi@pool-96-242-33-206.nwrknj.fios.verizon.net) Quit (Quit: djk)
[5:38] <Maai> so you turn on your pi and it loads a gui that you trigger gpio
[5:39] <Maai> get searching online :)
[5:45] <Maai> pi.com forums have halted
[5:46] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) Quit (Ping timeout: 240 seconds)
[5:47] <Maai> meh, found this -> https://hackaday.com/2014/06/23/programming-pi-games-with-bare-metal-assembly/
[5:48] * one2zero (~one2zero@103.25.99.90) Quit (Ping timeout: 248 seconds)
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[6:00] <Maai> maybe not then
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[6:01] * Ilyas (uid43013@gateway/web/irccloud.com/x-cahbrrnkxbzonhnl) Quit (Quit: Connection closed for inactivity)
[6:04] * d0rm0us3 (~any@unaffiliated/anym0us3) Quit (Ping timeout: 272 seconds)
[6:04] <Maai> one way could be to run the necessary set up for gui work but not actually starting xfce
[6:05] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) Quit (Ping timeout: 248 seconds)
[6:05] <Maai> so before you run xfce, run the gpio script
[6:05] <Maai> you have access to important libaries then
[6:07] <Maai> https://www.reddit.com/r/raspberry_pi/comments/7mozxp/disabling_gui_via_raspiconfig_also_disables_sdusb/
[6:07] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) has joined #raspberrypi
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[6:12] * lankanmon (~LKNnet@CPE64777dd7e053-CM64777dd7e050.cpe.net.cable.rogers.com) Quit (Quit: No Ping reply in 180 seconds.)
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[6:30] <Maai> i found those links most likely more useful ;)
[6:30] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[6:34] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 248 seconds)
[6:40] <atomi> anyone recommend a good multimeter that doesn't cost much?
[6:41] <atomi> should I just get a fluke?or?
[6:41] * Snircle (~textual@2600:8801:c404:7900:74b0:3f7:6192:c1e) Quit (Quit: Textual IRC Client: www.textualapp.com)
[6:45] <Maai> knock on every door in your neighbourhood i bet some engineer has a spare x
[6:45] <atomi> there's a surpeer for 29.99 on Amazon rn
[6:52] <atomi> nevermind 250v fuses...
[6:54] * BenderRodriguez (~Foxhoundz@unaffiliated/foxhoundz) has joined #raspberrypi
[6:57] * Arcaelyx (~Arcaelyx@2601:646:c200:27a1:dcf0:9925:cfa0:2bfa) Quit (Quit: My MacBook has gone to sleep. ZZZzzz…)
[6:57] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[7:01] <Maai> my dad was into multimeters... a lot
[7:01] * _Trullo (~guff33@h-53-230.A357.priv.bahnhof.se) Quit (Quit: http://i.imgur.com/wkHvYhs.gif)
[7:02] * bromskloss (~jolson@c80-216-76-97.bredband.comhem.se) Quit (Ping timeout: 240 seconds)
[7:02] * whatever_hi (~whatever_@63.157.105.241) Quit (Ping timeout: 260 seconds)
[7:02] <atomi> i'll get a fluke 87vat some point I just need a good sale
[7:03] * pppingme (~pppingme@unaffiliated/pppingme) Quit (Quit: Leaving)
[7:04] <Maai> i kept my dad's rapitest. 250V :(
[7:04] <atomi> I think it might be the fastest continuity tester and good for mains
[7:04] <atomi> the only dmm you'll ever need
[7:05] <Maai> fuses dont care about volts?
[7:07] <atomi> yeah they do
[7:07] * mamed (5569c5ea@gateway/web/freenode/ip.85.105.197.234) has joined #raspberrypi
[7:08] <atomi> they're usually 600v rating, that cheap surpeer is 250v
[7:08] <atomi> I mean it would be okay for US home use, just not mains
[7:08] * pepee (~pepee@unaffiliated/pepee) Quit (Ping timeout: 268 seconds)
[7:09] * trumee (~trumee@c-73-183-219-14.hsd1.tx.comcast.net) has joined #raspberrypi
[7:12] <atomi> that surpeer honestly isn't bad at all for $30
[7:13] <Maai> i would happily send you this one but who trusts on the net?
[7:13] <atomi> you have an 87v?
[7:13] <shauno> fuses and volts is unintuitive. it takes current to pop a fuse, not volts. but once it's blown, then the voltage rating is important. stick enough volts into a blown fuse and it'll arc over the gap
[7:14] * BOKALDO (~BOKALDO@91.105.117.58) has joined #raspberrypi
[7:16] <Maai> voltage has the 'push' factor?
[7:16] <atomi> yes enough volts on a blown fuse will arc
[7:16] * pppingme (~pppingme@unaffiliated/pppingme) has joined #raspberrypi
[7:16] <shauno> I guess so. that bit I've never been quite clear on myself. volts have the push and amps have the weight I guess
[7:16] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 240 seconds)
[7:17] <shauno> I just keep in mind that a static shock is lots of volts at negligible current. you can make a little flash, but no-one gets killed
[7:17] * mossman93 (~mossman93@unaffiliated/mossman93) has joined #raspberrypi
[7:17] <atomi> shauno, what multimeter do you use?
[7:21] * stiv (~steve@blender/coder/stivs) Quit (Quit: Leaving)
[7:26] * zt (~zongtong9@211.141.234.105) Quit (Read error: Connection reset by peer)
[7:26] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) Quit (Ping timeout: 240 seconds)
[7:28] * pepee (~pepee@unaffiliated/pepee) has joined #raspberrypi
[7:28] * pepee (~pepee@unaffiliated/pepee) Quit (Remote host closed the connection)
[7:29] <Maai> atomi: 'a wooden one'
[7:35] * genericuser123 (~enter@43.225.32.90) Quit (Read error: Connection reset by peer)
[7:37] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) has joined #raspberrypi
[7:38] * phil42 (~phil42@c-76-125-104-228.hsd1.ar.comcast.net) Quit (Ping timeout: 264 seconds)
[7:42] * sunn (~sunn@55.3e.32a9.ip4.static.sl-reverse.com) Quit (Ping timeout: 240 seconds)
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[7:50] * en1gmaa (~en1gma@55-83-181-166.mobile.uscc.net) has joined #raspberrypi
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[7:54] * en1gma (~en1gma@137-82-181-166.mobile.uscc.net) Quit (Ping timeout: 268 seconds)
[7:57] <atomi> k
[8:01] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 268 seconds)
[8:02] * mossman93 (~mossman93@unaffiliated/mossman93) has joined #raspberrypi
[8:03] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[8:06] * r0Oter is now known as r00ter
[8:07] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 248 seconds)
[8:19] <shauno> my multimeter is so cheap & nasty, it doesn't look like they even bothered to invent a brand name for it
[8:21] <shauno> the same model (dt320b) is on aliexpress for €2.35
[8:22] <shauno> if I had to get it again though, I'd splash out the extra 10 cents for something that goes beep on the continuity tester
[8:24] * divadsn (~divadsn@192.166.219.55) Quit (Ping timeout: 248 seconds)
[8:31] * davr0s (~textual@81.155.67.179) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[8:32] * puzzola (~puzzola@unaffiliated/puzzola) Quit (Ping timeout: 256 seconds)
[8:35] * divadsn (~divadsn@192.166.219.55) has joined #raspberrypi
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[8:37] * rpifan (~rpifan@208.54.85.211) Quit (Max SendQ exceeded)
[8:38] * mamed (5569c5ea@gateway/web/freenode/ip.85.105.197.234) Quit (Ping timeout: 260 seconds)
[8:38] <tnewman> How's everyone doing
[8:38] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) Quit (Ping timeout: 240 seconds)
[8:39] * puzzola (~puzzola@unaffiliated/puzzola) has joined #raspberrypi
[8:42] * v01d4lph4 (~silent_fr@103.201.141.10) Quit (Read error: Connection reset by peer)
[8:43] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
[8:43] <Maai> staying away from women is upsetting
[8:43] <Maai> figuring out computers is time consuming
[8:44] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) has joined #raspberrypi
[8:44] <Maai> not sleeping right is worthlessnesse
[8:44] <Maai> two minds in one head is killing me
[8:45] <Maai> no job = unimportant
[8:46] <Maai> smelly bedroom as im seen as an a**
[8:47] <Maai> i can't 'just wait' im feeling its never going to happen
[8:47] <Maai> wait for nothing
[8:47] <Maai> feel ****
[8:47] <Maai> anyone else?
[8:48] * rpifan (~rpifan@208.54.85.211) has joined #raspberrypi
[8:48] * rpifan (~rpifan@208.54.85.211) Quit (Max SendQ exceeded)
[8:49] * pklaus (~pklaus@200116b8209078002ce07492124aaa0a.dip.versatel-1u1.de) Quit (Ping timeout: 252 seconds)
[8:51] <tnewman> Um
[8:51] <tnewman> You sound stressed
[8:52] <Maai> yaar
[8:52] <tnewman> What are you 'just waiting' for?
[8:53] <Maai> nothing. it is an excuse
[8:53] <Maai> what are you working on today with pipi?
[8:54] <tnewman> Nothing at the moment
[8:54] <tnewman> Was playing with synapse but that kills it
[8:55] <tnewman> Or at least knocks the wind out of it
[8:55] <tnewman> (matrix is frustrating)
[8:55] * pklaus (~pklaus@i577A2E9F.versanet.de) has joined #raspberrypi
[8:57] <Maai> synapse the packet manager?
[8:57] <Maai> that was SUSE actually
[8:59] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) has joined #raspberrypi
[8:59] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) Quit (Remote host closed the connection)
[9:00] * en1gmaa (~en1gma@55-83-181-166.mobile.uscc.net) Quit (Quit: Leaving)
[9:00] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Ping timeout: 240 seconds)
[9:01] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) has joined #raspberrypi
[9:02] * nshire (~nealshire@unaffiliated/nealshire) Quit (Ping timeout: 256 seconds)
[9:08] * one2zero (~one2zero@103.25.99.90) Quit (Remote host closed the connection)
[9:08] * one2zero (~one2zero@103.25.99.90) has joined #raspberrypi
[9:10] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) Quit (Remote host closed the connection)
[9:11] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) has joined #raspberrypi
[9:12] <Maai> i am to go drink coffee. bye.
[9:12] * Maai (~pi@91.34.189.80.dyn.plus.net) Quit (Quit: ummmmmm)
[9:13] * v01d4lph4 (~silent_fr@122.162.122.230) has joined #raspberrypi
[9:18] * v01d4lph4 (~silent_fr@122.162.122.230) Quit (Ping timeout: 272 seconds)
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[9:20] * v01d4lph4 (~silent_fr@122.162.122.230) has joined #raspberrypi
[9:24] * t0adst00l (~sluggo@gateway/tor-sasl/prometheusfalli/x-99064168) has joined #raspberrypi
[9:43] * v01d4lph4 (~silent_fr@122.162.122.230) Quit (Remote host closed the connection)
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[9:48] * one2zero (~one2zero@103.25.99.90) Quit (Ping timeout: 248 seconds)
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[9:52] * v01d4lph4 (~silent_fr@122.162.122.230) Quit (Remote host closed the connection)
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[9:56] * rpifan (~rpifan@172.56.27.180) Quit (Max SendQ exceeded)
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[10:04] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[10:05] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) has joined #raspberrypi
[10:05] * easzero (~easzero@2a02:908:4c4:f300:29ab:d901:8759:e80e) has joined #raspberrypi
[10:07] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 256 seconds)
[10:07] * easzero (~easzero@2a02:908:4c4:f300:29ab:d901:8759:e80e) Quit (Remote host closed the connection)
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[10:09] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 248 seconds)
[10:13] * Dimik (~Dimik@ool-182e2df5.dyn.optonline.net) has joined #raspberrypi
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[10:34] * wgas (~wgas@unaffiliated/wgas) Quit (Read error: Connection reset by peer)
[10:37] * supajerm (~supajerm@c-73-176-202-127.hsd1.in.comcast.net) Quit (Ping timeout: 248 seconds)
[10:40] * nighty- (~nighty@s229123.ppp.asahi-net.or.jp) Quit (Quit: Disappears in a puff of smoke)
[10:41] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
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[10:50] * fuzzyone (uid181835@gateway/web/irccloud.com/x-ievriskigdpthxkm) has joined #raspberrypi
[10:53] * fatalhalt (~fatalhalt@c-67-163-60-93.hsd1.il.comcast.net) Quit (Quit: fatal halt)
[10:55] * Dimik (~Dimik@ool-182e2df5.dyn.optonline.net) Quit (Ping timeout: 240 seconds)
[10:58] * RaMcHiP (~RaMcHiP_T@173.218.65.35) Quit (Ping timeout: 248 seconds)
[10:59] * m_t (~m_t@p5DDA3BD4.dip0.t-ipconnect.de) has joined #raspberrypi
[11:12] * mschorm (~mschorm@ip-78-102-201-117.net.upcbroadband.cz) Quit (Ping timeout: 252 seconds)
[11:18] * r3 (~arethree@ntp/member/r3) Quit (Read error: Connection reset by peer)
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[11:19] * dreamon (~dreamon@unaffiliated/dreamon) has joined #raspberrypi
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[11:22] * guideline (~guideline@gateway/vpn/privateinternetaccess/guideline) Quit (Ping timeout: 272 seconds)
[11:23] * derfoh (~derfoh@ec2-34-236-188-58.compute-1.amazonaws.com) Quit (Quit: Ping timeout (120 seconds))
[11:24] * kozy (~quassel@218.159.206.63) Quit (Quit: No Ping reply in 180 seconds.)
[11:25] * kozy (~quassel@218.159.206.63) has joined #raspberrypi
[11:26] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) has joined #raspberrypi
[11:28] * dreamon (~dreamon@unaffiliated/dreamon) Quit (Remote host closed the connection)
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[11:33] * YuGiOhJCJ (~YuGiOhJCJ@gateway/tor-sasl/yugiohjcj) Quit (Quit: YuGiOhJCJ)
[11:39] * Azlux (~Azlux@unaffiliated/azlux) has joined #raspberrypi
[11:40] * Obi-Wan (~obi-wan@unaffiliated/obi-wan) Quit (Ping timeout: 264 seconds)
[11:44] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[11:45] * Zparx (~Fox@p200300CD63CA6300EDC90BF7D4700B71.dip0.t-ipconnect.de) has joined #raspberrypi
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[11:53] * v01d4lph4 (~silent_fr@122.162.122.230) has joined #raspberrypi
[11:54] <cnnx> is this ok for the rpi?
[11:54] <cnnx> https://www.bestbuy.ca/en-ca/product/pny-pny-elite-16gb-85mb-s-microsdhc-memory-card-p-sdu16u185el-ge/10448147.aspx?
[11:58] * v01d4lph4 (~silent_fr@122.162.122.230) Quit (Ping timeout: 256 seconds)
[11:58] * RoBo_V1 (~robo@27.255.184.74) has joined #raspberrypi
[12:00] * lankanmon (~LKNnet@CPE64777dd7e053-CM64777dd7e050.cpe.net.cable.rogers.com) Quit (Read error: Connection reset by peer)
[12:02] * RoBo_V (~robo@27.255.176.106) Quit (Ping timeout: 272 seconds)
[12:02] * RoBo_V1 is now known as RoBo_V
[12:06] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[12:07] * Encrypt (~Encrypt@2a01cb0401d172008d610c122054bb1e.ipv6.abo.wanadoo.fr) has joined #raspberrypi
[12:11] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 256 seconds)
[12:11] * Encrypt (~Encrypt@2a01cb0401d172008d610c122054bb1e.ipv6.abo.wanadoo.fr) Quit (Client Quit)
[12:18] * ShapeShifter499 (~ShapeShif@unaffiliated/shapeshifter499) Quit (Ping timeout: 248 seconds)
[12:26] * dalmata (~yaaic@unaffiliated/dalmathg) has joined #raspberrypi
[12:27] * Armand (~armand@office.prgn.misp.co.uk) has joined #raspberrypi
[12:29] * dalmata (~yaaic@unaffiliated/dalmathg) Quit (Client Quit)
[12:29] * dalmata (~yaaic@unaffiliated/dalmathg) has joined #raspberrypi
[12:30] * clemens3 (~clemens@80-218-38-71.dclient.hispeed.ch) has joined #raspberrypi
[12:31] * t0adst00l (~sluggo@gateway/tor-sasl/prometheusfalli/x-99064168) Quit (Ping timeout: 272 seconds)
[12:32] * clemens3 (~clemens@80-218-38-71.dclient.hispeed.ch) Quit (Client Quit)
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[12:37] <Azlux> cnnx: 16G, class 10 . Look good
[12:37] <Lartza> Yeah why wouldn't it be? :P
[12:38] <Lartza> Can probably even overlock it a bit because U1
[12:42] * enkrypt (~enkrypt@cust-24-53-111-94.dyn.as47377.net) Quit (Ping timeout: 240 seconds)
[12:46] <cnnx> anyone know if a nice solar panel charge controller remote realtime monitoring solution not expensive?
[12:46] <cnnx> something that gives me a dashboard like this
[12:46] <cnnx> https://www.voltaicsystems.com/blog/powering-a-raspberry-pi-from-solar-power/
[12:46] <cnnx> there's a control panel if you scroll down the page a bit
[12:46] <cnnx> raspiconnect
[12:47] <cnnx> need something simple
[12:48] * mike_t (~mike@pluto.dd.vaz.ru) Quit (Remote host closed the connection)
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[12:56] * Ilyas (uid43013@gateway/web/irccloud.com/x-dyzjmlokshykijmi) has joined #raspberrypi
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[12:59] * fuzzyone (uid181835@gateway/web/irccloud.com/x-ievriskigdpthxkm) Quit (Quit: Connection closed for inactivity)
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[13:15] * Zparx (~Fox@p200300CD63CA6300EDC90BF7D4700B71.dip0.t-ipconnect.de) has joined #raspberrypi
[13:17] * energizer (~energizer@unaffiliated/energizer) Quit (Ping timeout: 272 seconds)
[13:19] * willy23123 (~willy2312@86-42-103-154-dynamic.agg2.lky.bge-rtd.eircom.net) Quit (Quit: Colloquy for iPhone - http://colloquy.mobi)
[13:21] * willy23123 (~willy2312@86-42-103-154-dynamic.agg2.lky.bge-rtd.eircom.net) has joined #raspberrypi
[13:21] * mossman93 (~mossman93@unaffiliated/mossman93) Quit (Ping timeout: 264 seconds)
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[13:30] <cnnx> is there a usb device or something i can connect to my rpi to remotely monitor my solar panel's output and battery state?
[13:30] <cnnx> something simple?
[13:30] <cnnx> either via web or ssh
[13:31] * NightMonkey (~NightMonk@pdpc/supporter/professional/nightmonkey) Quit (Ping timeout: 240 seconds)
[13:31] <ShorTie> define simple, the pi has no ADC
[13:32] <cnnx> something plug and play
[13:32] * BeamWatcher (~gashead76@208.117.74.236) Quit (Read error: Connection reset by peer)
[13:33] <ShorTie> plug-n-pray, not really
[13:33] <willy23123> Maybe some kind of gas gage chip
[13:33] <BurtyB> who knows.. we have no idea what solar panels you have what batteries you have etc..
[13:33] <cnnx> so you mean i need to go outside
[13:33] <cnnx> and measure with a voltmeter
[13:33] <ShorTie> nop
[13:34] <willy23123> Is a voltmeter enough to know the state
[13:34] <cnnx> 12.8 is 100%
[13:34] <ShorTie> arduinos have a built in ADC
[13:34] * Dummy101 (~whatwhat@31.205.129.36) Quit (Ping timeout: 248 seconds)
[13:34] <cnnx> and am amp meter
[13:34] <cnnx> for the current
[13:34] <BurtyB> calling all owners of crystal balls..
[13:34] <cnnx> of the solar panel charging
[13:35] <willy23123> Ok I’ve done that with an i2c adc chip and a restive divider
[13:35] <willy23123> I don’t think it worked that well
[13:36] <cnnx> theres something pretty called raspiconnect
[13:36] <cnnx> i found googling this morninig
[13:36] <cnnx> but looks complicated to setup the wiring/hardware
[13:36] <ShorTie> it be less of a mess to use a arduino to moniter and send via wifi to the pi
[13:36] <cnnx> ok i can do that
[13:36] * BurtyB had an arduino with resistor divider for voltage before I built my ina219 based battery monitors and yes it was crap and all over the place heh
[13:36] <cnnx> there's a solution for the arduino already?
[13:37] <willy23123> Note the Arduino is 5volt so you need a voltage divider
[13:37] <BurtyB> not all arduinos are 5v
[13:37] <cnnx> i can power it with a micro usb plug
[13:37] <cnnx> right
[13:37] <willy23123> Yeah some are 3v
[13:37] <cnnx> like the rpi
[13:37] * BeamWatcher (~gashead76@208.117.74.236) has joined #raspberrypi
[13:37] <BurtyB> 3.3v even
[13:38] <willy23123> I still think a gas gage chip is possibly the way to go
[13:39] <cnnx> but is there a premade solution already
[13:39] <cnnx> i dont mind paying 20-30$
[13:39] <cnnx> instead of reinvinting it
[13:39] <cnnx> like a remotely accessible charge controller
[13:39] <cnnx> i have a morningstar charge controller already
[13:39] <cnnx> but it doenst send data remotely
[13:40] <cnnx> someone answered me already on the forum
[13:40] <cnnx> https://www.raspberrypi.org/forums/viewtopic.php?p=1251810#p1251810
[13:40] <BurtyB> if you want cheap you can upgrde to a morningstar with monitoring but they don't come chep
[13:40] * willy23123 (~willy2312@86-42-103-154-dynamic.agg2.lky.bge-rtd.eircom.net) Quit (Quit: Colloquy for iPhone - http://colloquy.mobi)
[13:40] <BurtyB> err if you want pre made lol
[13:42] * dalmata (~yaaic@unaffiliated/dalmathg) Quit (Read error: Connection reset by peer)
[13:45] * asteele (~cronoh@2601:646:102:c370:d0fc:59db:7e6d:2991) Quit (Ping timeout: 265 seconds)
[13:46] * drewmcmillan (~drewmcmil@cpc77022-warw18-2-0-cust494.3-2.cable.virginm.net) has joined #raspberrypi
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[14:05] * johndescs (~johndescs@AAubervilliers-681-1-24-109.w90-88.abo.wanadoo.fr) Quit (Quit: oops)
[14:07] * Gathis (~TheBlack@unaffiliated/gathis) Quit (Remote host closed the connection)
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[14:11] * davr0s (~textual@host81-155-67-179.range81-155.btcentralplus.com) Quit (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)
[14:12] * feksclaus (~feksclaus@80-71-131-204.u.parknet.dk) has joined #raspberrypi
[14:12] * feksclaus (~feksclaus@80-71-131-204.u.parknet.dk) Quit (Client Quit)
[14:25] * GenteelBen (~GenteelBe@cpc111801-lutn14-2-0-cust55.9-3.cable.virginm.net) has joined #raspberrypi
[14:30] * BeamWatcher (~gashead76@208.117.74.236) Quit (Ping timeout: 256 seconds)
[14:32] * asteele (~cronoh@2601:646:102:c370:b415:4e81:4db6:c5b6) has joined #raspberrypi
[14:37] * cnnx (~cnnx@unaffiliated/cnnx) Quit (Quit: leaving)
[14:38] * Keanu73 (~Keanu73@2ProIntl/User/Geek/Keanu73) has joined #raspberrypi
[14:41] * Vonter (~Vonter@106.51.110.5) Quit (Ping timeout: 248 seconds)
[14:42] * Quatroking (~Quatrokin@507098BE.static.ziggozakelijk.nl) has joined #raspberrypi
[14:46] * darksim (~quassel@78-70-247-31-no186.tbcn.telia.com) has joined #raspberrypi
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[14:52] * djk (~Thunderbi@pool-96-242-33-206.nwrknj.fios.verizon.net) has joined #raspberrypi
[14:54] * tommy`` (~UPP@host99-231-dynamic.50-79-r.retail.telecomitalia.it) Quit (Read error: Connection reset by peer)
[14:56] * mujjingun (uid228218@gateway/web/irccloud.com/x-rtgzirtikijhvstj) Quit (Quit: Connection closed for inactivity)
[15:04] * Encrypt (~Encrypt@2a01cb0401d17200e53407c8eeee6ec3.ipv6.abo.wanadoo.fr) has joined #raspberrypi
[15:05] * r3 (~arethree@ntp/member/r3) Quit (Ping timeout: 240 seconds)
[15:14] * daynaskully (~dskull@unaffiliated/daynaskully) Quit (Ping timeout: 252 seconds)
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[15:27] * d4re (~d4re@gateway/tor-sasl/d4re) Quit (Ping timeout: 272 seconds)
[15:28] * d4re (~d4re@gateway/tor-sasl/d4re) has joined #raspberrypi
[15:30] * drewmcmillan (~drewmcmil@cpc77022-warw18-2-0-cust494.3-2.cable.virginm.net) Quit (Quit: My MacBook has gone to sleep. ZZZzzz…)
[15:32] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) has joined #raspberrypi
[15:33] * harmlessgryphon (~sharp-cla@d47-69-199-50.col.wideopenwest.com) has joined #raspberrypi
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[15:35] * d4re (~d4re@gateway/tor-sasl/d4re) Quit (Remote host closed the connection)
[15:35] * whatever_hi (~whatever_@63-157-105-241.dia.static.qwest.net) has joined #raspberrypi
[15:36] * d4re (~d4re@gateway/tor-sasl/d4re) has joined #raspberrypi
[15:36] * awkwardpenguin (~awkwardpe@172-222-167-081.dhcp.chtrptr.net) Quit (Ping timeout: 248 seconds)
[15:38] * johndescs (~johndescs@AAubervilliers-681-1-24-109.w90-88.abo.wanadoo.fr) has joined #raspberrypi
[15:42] * Encrypt (~Encrypt@2a01cb0401d17200e53407c8eeee6ec3.ipv6.abo.wanadoo.fr) Quit (Quit: Quit)
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[15:46] * GerhardSchr (~GerhardSc@unaffiliated/gerhardschr) Quit (Quit: Leaving)
[15:47] * High_Priest (~hp@unaffiliated/high-priest/x-8117523) Quit (Quit: Leaving)
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[15:55] <gregor2> Ho can i connect to a Raspberrypi headless?
[15:56] <AntiComposite> Wifi, ethernet, and usb are all options
[15:56] <BurtyB> +serial
[15:56] <gregor2> Ethernet
[15:56] <gregor2> its a raspberrypi b+
[15:56] <gregor2> But its not working.
[15:57] <gregor2> Can i setup a static ip somehow?
[15:57] <AntiComposite> What is the pi connected to?
[15:57] <gregor2> ethernet cable.
[15:57] <gregor2> What do you mean?
[15:58] <BurtyB> not without logging in, you prob need to enable ssh (https://www.raspberrypi.org/documentation/remote-access/ssh/) and then find the IP to use SSH (https://www.raspberrypi.org/documentation/remote-access/ip-address.md)
[15:58] <gregor2> I only have access with the sd card anf ethernet
[15:58] <gregor2> I have already read that
[15:59] <gregor2> not helping
[15:59] <BurtyB> gregor2, so enable ssh, find the IP and use an SSH client
[15:59] <gregor2> i dont find the i[
[15:59] <AntiComposite> What's the other end of the ethernet cable plugged into?
[15:59] <gregor2> I put a file called ssh into the boot-section to enable ssh
[15:59] <gregor2> but
[15:59] <gregor2> A pc
[16:00] <gregor2> I dont know the ip adress and dont find anything with nmap
[16:00] <gregor2> i am running debian
[16:01] <gregor2> and the Interfaces are called en3p0 as far as i remember.
[16:02] <BurtyB> do you have avahi installed on your debian box? if so you shoudl be able to "ping raspberrypi.local"
[16:02] <BurtyB> (well installed and running I guess heh)
[16:03] <gregor2> ping raspberrypi.local?
[16:03] <ShorTie> gregor2, you did make the ssh file and giving the rpi enough time to get ssh working ??
[16:03] <ShorTie> it can take a few
[16:03] <gregor2> why do i neen avahi for that?
[16:03] <gregor2> i guess
[16:03] <gregor2> yes
[16:03] <gregor2> i made the file
[16:04] <BurtyB> gregor2, because avahi/mdns will know what IP has that name
[16:04] <gregor2> Yes i think it had enough time.
[16:04] <AntiComposite> Just making completely sure, you have a direct connection from the pi to the debian box, no router or anything?
[16:04] <gregor2> no router
[16:05] <AntiComposite> Have you told the debian box to give the pi an IP?
[16:05] <ShorTie> oh, so it's a 169.x.x.x ipaddess
[16:06] <gregor2> raspberrypi.local not knowen
[16:06] <gregor2> i dont know how to set up an dhcp server.
[16:06] <ShorTie> try by ipaddress not name
[16:06] <gregor2> Do i really need thatA
[16:06] <gregor2> Cant i give the pi a static ip?
[16:08] <Armand> You can, so long as it doesn't conflict
[16:08] <Armand> Assuming LAN
[16:08] <gregor2> and how?
[16:08] <Armand> Can't recall.. networking config-something-something
[16:10] <gregor2> but i have to do it just with acess to the file system
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[16:10] <ShorTie> a router would be the quickest and easiest
[16:11] <gregor2> I dont have one
[16:11] <gregor2> Or
[16:11] <AntiComposite> Do you have networkmanager running on the debian box?
[16:11] <gregor2> actually i do but
[16:11] <gregor2> i dont know
[16:11] * tommy`` (~UPP@host99-231-dynamic.50-79-r.retail.telecomitalia.it) has joined #raspberrypi
[16:11] <gregor2> Can i make a bridge to the wlan
[16:12] * Vonter (~Vonter@106.51.110.5) Quit (Ping timeout: 260 seconds)
[16:12] <gregor2> then the Raspberrypi would be connected with a router
[16:12] <AntiComposite> Try this: https://wiki.archlinux.org/index.php/NetworkManager#Sharing_internet_connection_over_Ethernet
[16:12] <gregor2> i guess
[16:12] * JohnWayne (~JohnWayne@znc.flyingplatypus.org) has joined #raspberrypi
[16:12] <gregor2> So i am on a notebook
[16:13] <gregor2> and we have wlan
[16:13] <gregor2> the raspberrypi is connected on the ethernet port.
[16:14] * hunterlabs (Elite20801@gateway/shell/elitebnc/x-feanawmoylmadwym) Quit (Ping timeout: 276 seconds)
[16:14] <gregor2> Isnt it somehow possible to define a static ip without ssh?
[16:16] <AntiComposite> You can edit /etc/network/interfaces
[16:17] <AntiComposite> https://help.ubuntu.com/lts/serverguide/network-configuration.html#ip-addressing has information, under Static IP Address Assignment
[16:17] <gregor2> but i have to know the name of the interface for that.
[16:17] * stiv (~steve@blender/coder/stivs) has joined #raspberrypi
[16:17] <gregor2> how does that work?
[16:17] <ShorTie> you can setup your wlan just like the ssh file
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[16:17] <gregor2> Its a b+
[16:18] <gregor2> they dont have any wlan
[16:18] <ShorTie> oh, Sorry
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[16:24] <gregor2> Any Way to find the name of the interface?
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[16:26] <AntiComposite> I don't remember if raspbian has predictable interface names turned on or not.
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[16:30] <gregor2> It has
[16:31] <gregor2> but the predictable names are unpredictable because its including the mac adress.
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[16:32] <BurtyB> eth0 and rpi3/zerow wlan0 aren't renamed anymore tho
[16:32] <Lartza> Aka no predictable names enabled
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[16:35] <gregor2> eth0
[16:35] <gregor2> deos not wor
[16:35] <gregor2> k
[16:35] <gregor2> already tried
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[16:36] <BurtyB> Lartza, iirc it's enabled but not for the builtin devices (unless things have changed again)
[16:40] <gregor2> I am sick of this?
[16:40] <pwillard> Honest... my general feeling is that the concept behind predictable names is flawed.
[16:40] <BurtyB> what he said
[16:41] * akk (~akkana@75-161-91-17.albq.qwest.net) has joined #raspberrypi
[16:41] <gregor2> Do i have to buy a HDMI TV and set up a DHCP Server to run my pi now?
[16:41] <gregor2> For one blinking LED!
[16:42] <gregor2> You need all of that.
[16:42] <Lartza> You have to buy a subscription to the blink service
[16:42] <gregor2> Of cours
[16:42] <gregor2> What comes next?
[16:43] <BurtyB> err no you dont
[16:43] <pwillard> I have added additional USB Ethernet adapters with no ill effects in the past, btw.
[16:43] <gregor2> Touchscreen on the pi saying "Log in to pi account to enter pi serial key".
[16:44] <pwillard> You can ENABLE SSH at boot time from the FAT32 Partition configuration files... and then you can use PUTTY or whatever to remote control without HDMI
[16:44] <gregor2> Connecting to pi cloud...
[16:44] <gregor2> And the ip adress of it?
[16:45] <gregor2> I still need to make a dhcp server
[16:45] <AntiComposite> Installing dnsmasq on the debian box should be all you have to do
[16:46] <AntiComposite> Then configuring networkmanager
[16:46] <pwillard> If you are sitting on a network that doesn't have one, that would be the right idea. Using a network without DHCP is just plain annoying.
[16:46] <akk> You'll have to search on your net for the address of the Pi (there are various scripts online that can do that) or check your router's device list.
[16:46] <AntiComposite> No router
[16:46] <AntiComposite> They've got a direct Pi -- Debian box connection
[16:46] <akk> Actually static IP is the easy way to go, at first.
[16:46] * louisdk (~louisdk@5.103.138.205) has joined #raspberrypi
[16:47] <akk> Oh, if it's just a network cable to a debian box, then yeah, static IP for sure.
[16:47] <AntiComposite> They're running into issues with predictable interface naming. Apparently eth0 doesn't work
[16:48] <akk> Huh, weird. I know eth0 used to work on Pi 1 but I haven't actually tried it on current models.
[16:49] <pwillard> because eth0 isn't there anymore
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[16:49] <akk> This won't help right now, but in general, I highly recommend getting a serial cable for anyone planning to run a headless pi.
[16:49] <AntiComposite> I don't have raspbian installed on any of my pis, so I've got no idea
[16:49] <akk> It makes it so much easier to debug problems like this.
[16:50] <akk> What pi model is it?
[16:51] * tonythomas (uid25971@wikimedia/-01tonythomas) has joined #raspberrypi
[16:53] <pwillard> agreed
[16:53] <red9> Is "wiringPi" modelled on the Arduino developer environment?
[16:53] <pwillard> only loosely
[16:53] <red9> ie same function parameters and structs..
[16:53] <JohnWayne> Wasn't eth replaced by ens?
[16:54] <pwillard> in the sense that tries to make pin assignments be more sensible
[16:55] <red9> What does "delay(18);" mean in Arduino context? ie time unit?
[16:55] <pwillard> and many arduino concepts were borrowed... but its not a 1:1
[16:55] <pwillard> that would be WAIT 18 Milliseconds
[16:55] <akk> My pi3 with current raspbian stretch has eth0.
[16:56] <red9> thinking about porting a DHT11 driver.
[16:56] <pwillard> If you have eth0, then you don't have predictable names working
[16:57] <pwillard> (which is probably what you really want)
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[16:58] <akk> The only thing I've changed in the networking on mine is to add a few stanzas in wpa_supplicant.conf.
[16:58] <pwillard> Like SSID and Keyword, right?
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[16:59] <akk> ssid, psk, key_mgmt for two wpa networks, ssid for a third.
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[18:25] <bobstro> late here, but you can disable "predictable" network interface names altogether if you prefer the old scheme
[18:30] <pwillard> yes, its possible... doable even in the config file in the /boot partition
[18:32] <pwillard> and there is this: https://raspberrypi.stackexchange.com/questions/43560/raspberry-pi-3-eth0-wrongfully-named-enx
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[18:35] <BenderRodriguez> huh
[18:35] <BenderRodriguez> Why didn't anyone tell me
[18:36] <IT_Sean> Why didn't you ask?
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[18:36] <bobstro> we're from the future, you were in the past
[18:37] <bobstro> next time, set search options to include future
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[19:53] <caoliver> Any good pointers in generating CPPM from a RasPi Zero? I'm currently using an Arduino, but the timer resolution isn't as fine as I'd like.
[19:54] * tonythomas (uid25971@wikimedia/-01tonythomas) Quit (Quit: Connection closed for inactivity)
[20:02] <bobstro> not an expert, but from what i've read, the arduino is better-suited to real-time (e.g. LED timing) than the RPi.
[20:02] <bobstro> at least the RPi running general-purpose linux
[20:03] <caoliver> I'd like better than 1/16e6Hz timer resolution for PPM.
[20:03] * rorro (~rorro@94.234.39.70) Quit (Read error: Connection reset by peer)
[20:03] <caoliver> I'm looking at an overview for ChibiOS.
[20:04] <caoliver> I certainly realize the Linux isn't a choice for hard RT.
[20:04] * caoliver has run Linux as his sole OS since 1994.
[20:05] * Armand (~armand@office.prgn.misp.co.uk) Quit (Quit: Armand)
[20:06] <caoliver> There's allegedly a library for the teensy that give 20ns resolution, but that's sort of an expensive SBC by comparison.
[20:06] * p71 (~chatzilla@71-90-117-89.dhcp.fdul.wi.charter.com) has joined #raspberrypi
[20:07] <BurtyB> probably going to be better at the job tho
[20:07] <bobstro> i've only played with ESP8266 with 80/160
[20:07] * rendar (~I@unaffiliated/rendar) Quit (Quit: std::lower_bound + std::less_equal *works* with a vector without duplicates!)
[20:08] <mlelstv> cppm looks pretty hacky
[20:08] <caoliver> It is, but that's how I need to talk to a gimbal.
[20:10] <caoliver> Life's not always fair. Gotta play the card one's dealt.
[20:10] <mlelstv> is there any description of a cppm signal?
[20:11] <bobstro> encountered this in ESP8266 research: http://www.instructables.com/id/625-Nanosecond-Resolution-Timer-for-Any-Microcontr/
[20:12] <caoliver> Only thing I've found is a video showing the behavior of the FrSky modules. I also have the Arduino interrupt handling code from my predecessor on this project.
[20:13] * mine9 (~mine9@c-24-22-38-85.hsd1.or.comcast.net) Quit (Quit: Textual IRC Client: www.textualapp.com)
[20:13] <mlelstv> hmm
[20:14] <mlelstv> looks just like a special PWM signal.
[20:14] <mlelstv> what period and resolution do you need?
[20:15] <caoliver> That has only 1μs resolution. That's fairly easy to improve upon by a factor of four to eight with clever hacking.
[20:17] <mlelstv> what has 1us ?
[20:17] <caoliver> The pulse start accuracy.
[20:18] * nshire (~nealshire@unaffiliated/nealshire) has joined #raspberrypi
[20:18] <caoliver> Basically this is about with what precision I can to the equivalent of digitalWrite().
[20:18] <mlelstv> and the pulse duration?
[20:18] <caoliver> In an ISR.
[20:18] <caoliver> 300μs
[20:19] <caoliver> And the individual pulses aren't spaced uniformally in the frame. Each is a different servo parameter.
[20:19] <caoliver> So it's not simply a matter of setting a free running osc.
[20:20] <mlelstv> looks like a constant length low + variable length high, so each channel has variable duration
[20:20] <caoliver> The sense is opposite, but you have the idea, and there's a long leading sync. The whole frame is 22.5ms.
[20:21] <mlelstv> what happens when you change the low duration too?
[20:21] <mlelstv> I'm looking at http://diydrones.com/profiles/blogs/why-frsky-cppm-signal-is-so-disappointing
[20:21] <caoliver> No idea. That's outside of spec, so behavior is undefined as far as I know.
[20:22] <caoliver> The controller I'm talking to isn't one of those. I'm feeding a gimbal controller which accepts PPM.
[20:22] <mlelstv> so low is 300us and high is probably 300..2200us
[20:22] <mlelstv> correct?
[20:22] <caoliver> Beyond that, we're straying into NDA territory, and I can't really say much.
[20:23] <caoliver> High is 1ms to 2ms.
[20:23] <mlelstv> and the resolution for high is 1us ? better ?
[20:23] <caoliver> And I'd like to make the variation in that range as precise as possible.
[20:24] <caoliver> And I want to improve on 1us as much as possible.
[20:24] <caoliver> This is an instrument angle.
[20:24] <mlelstv> 1us would be 0.1%
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[20:25] <caoliver> 1us over 360 degrees would be only 1/3degree. Not at all good.
[20:25] <mlelstv> I see
[20:25] <caoliver> The servo feedback is 1/200th degree.
[20:25] <caoliver> So we're losing a lot of capability due to timing lack of precision.
[20:26] <caoliver> Hence the quest for a more accurate timer.'
[20:26] <caoliver> And a system clock a little quicker than 16MHz.
[20:27] <caoliver> So I though a zero running an RTOS might do the job better than a gumstick Arduino. (current tech)
[20:27] <mlelstv> the PWM timer is by default 19.2MHz
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[20:28] * seranhom (~nope@h77-53-215-28.cust.se.alltele.net) Quit (Quit: How about no.)
[20:28] * caoliver is willing to forego an OS even.
[20:28] <mlelstv> you can't use the PWM signal, because it has a constant period. But you can use it to clock out GPIO data.
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[20:29] <caoliver> USART takes a simple command language and sets up an interrupt handler to drive GPIO.
[20:29] <mlelstv> I'm talking about DMA
[20:29] <caoliver> At least that's what the Arduino is doing.
[20:29] <caoliver> I know.
[20:29] <mlelstv> the CPU doesn't need to handle this, it just has to prepare a signal buffer.
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[20:30] <caoliver> You'd need double buffering and a critical section to make that work correctly over parameter changes.
[20:30] <mlelstv> yes, but that's simple
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[20:31] <mlelstv> but the higher the resolution, the larger the buffer.
[20:31] <mlelstv> hmm.
[20:32] * caoliver would prefer handling via a system timer and a low latency interrupt.
[20:33] <mlelstv> you will never know when something else is blocking interrupts. linux is not realtime.
[20:33] <caoliver> I'M NOT SUGGESTING THE USE OF LINUX.\
[20:33] <mlelstv> that's why all such things require either DMA hardware or are slow
[20:33] <caoliver> Linux is not hard RT.
[20:33] <mlelstv> no, isn't :)
[20:34] <caoliver> I'm suggesting using an alternative kernel or no OS at all.
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[20:34] <caoliver> I.e. use the zero as an basic SBC with something loaded from the SD.
[20:35] <caoliver> Not necessarily Linux.
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[20:35] * caoliver likes Linux, but it's not for everything.
[20:35] <ali1234> why not just write it for VC4 while your at it
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[20:35] <mlelstv> even a real-time OS would have problems with sub-microsecond interrupts.
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[20:37] <caoliver> Do interrupts have a deterministic service time? (Assume no general purpose OS at all.)
[20:37] <mlelstv> well, unless blocked, they have.
[20:38] <caoliver> OK. Now we're getting some where. I just need to ride herd on a USART and a GPIO pin. This doesn't need heavyweight support once booted.
[20:39] <caoliver> I might not need a lot of register saving at all.
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[20:40] <caoliver> I.e. the only thing I really want is a high clock resolution. !^MHz doesn't cut it here.
[20:40] <caoliver> 16MHz.
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[20:42] <mlelstv> Linux average interrupt latency is 12-13us on RPI3. With standard Linux you can see worst cases of almost 2ms. With RT-Linux the worst case is more like 100us.
[20:42] <mlelstv> If a hard realtime OS can guarantee 1us it's very very good.
[20:43] <caoliver> Again, assume a prog booted onto bare metal.
[20:43] <caoliver> You keep going back to an OS. I'm using the Zero as an MCU.
[20:44] <caoliver> I think that should be possible. No?
[20:45] <willy23123> Wouldn’t using a micro controller not be simpler
[20:45] <caoliver> Yup, but a ARM teensy costs about six times as much.
[20:46] <caoliver> I'd like the experiment to be as close to the cost of a clone nano as possible.
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[20:47] <caoliver> I.e. dirt cheap but fast enough to do CPPM with high accuracy while serving a serial dongle.
[20:47] <mlelstv> I think it can do that easily with DMA :)
[20:48] <caoliver> I think that buffer management might be an issue.
[20:48] <caoliver> I'd like to do this algorithmically.
[20:48] * yohnnyjoe (~yohnnyjoe@73.129.2.10) Quit (Ping timeout: 256 seconds)
[20:49] <mlelstv> not very algorithmically :)
[20:49] <caoliver> I.e. have the GPIO be driven by the simplest of firmware with NO OS support.
[20:50] <mlelstv> hmm. arm-v7m has 12 cycle latency from interrupt signal to first instruction.
[20:50] <caoliver> OK. That's useful info.
[20:50] <mlelstv> well, your rpi isn't arm-v7m :)
[20:51] <caoliver> Still this suggests I can get a specific cycle cost.
[20:51] <mlelstv> you'd also need to keep the interrupt code in cache, memory cycles can be delayed.
[20:51] <caoliver> That's useful info.
[20:51] <caoliver> I don't think that would be too hard.
[20:51] <caoliver> How big is Icache?
[20:52] <mlelstv> but I don't find hard data. I can only estimate that you need about 50-100 cycles to handle an interrupt. RPI Zero is clocked at 1GHz, so that's up to 100ns or 10MHz.
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[20:53] <caoliver> So no improvement.
[20:53] <mlelstv> 32kByte iCache + 256kByte L2 cache
[20:53] <caoliver> That's all I need to know.
[20:53] <caoliver> That would be easy to live in.
[20:54] <caoliver> I think feeding DMA would be hard.
[20:54] <mlelstv> no, isn't.
[20:55] <caoliver> With precise non-2^n length it might be.
[20:55] <caoliver> DMA tends to like nice lengths.
[20:55] <mlelstv> DMA doesn't need 2^n length
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[20:56] <caoliver> How do we know completion?
[20:56] <mlelstv> you get an interrupt
[20:57] <mlelstv> if you want you can also poll a register
[20:58] <mlelstv> do you need to repeat the signal train or just transmit changes?
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[20:58] <caoliver> I don't know how much slop is allowed in the sync pulse. That's something I want to explore with real hardware. If there's enough slop, I can completely discount the interrupt service time as long as the sync isn't too short.
[20:58] <mlelstv> the sync is, according to the description, at least twice a channel time. So about 4ms or longer.
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[20:59] <caoliver> I believe in normal servo operation, it is necessary to keep cylcing the pulse train until it changes.
[20:59] <caoliver> At least I seem to remember reading that somewhere.
[20:59] <mlelstv> you can tell DMA to repeat the same buffer again and again.
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[20:59] <mlelstv> that would be zero CPU load while nothing changes.
[20:59] <caoliver> And DMA can be 1bit serial?
[20:59] <mlelstv> no
[21:00] <mlelstv> it will write the GPIO registers.
[21:00] <caoliver> So 7 waste bits.
[21:00] <mlelstv> that's 16? or even 32bits.
[21:00] <caoliver> OK. Clock is configurable I assume.
[21:01] * caoliver has messed a bit with SPI under Linux.
[21:01] <mlelstv> there is no DMA clock, but you can use a PWM (or a PCM) channel to clock it.
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[21:02] <mlelstv> default PWM clock is 19.2MHz. You can configure other clock sources.
[21:02] <mlelstv> the fastest one is probably 500MHz.
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[21:02] <caoliver> Well given there are only two devices, this might work.
[21:03] <caoliver> DMA might be accessable under normal OS conditions.
[21:03] <caoliver> So less pain.
[21:03] <mlelstv> the PWM channels are used for audio. So to avoid conflicts, better disable audio (or force HDMI audio).
[21:04] <caoliver> This doesn't need audio ;-)
[21:04] * caoliver has another RasPi issuing the commands.
[21:05] <caoliver> I should find out if level shifting is going to be necessary.
[21:06] <mlelstv> with sub-microsecond resolution your CPPM signal will also be pretty analog...
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[21:06] <caoliver> Bad slew characteristics?
[21:07] <caoliver> All I'm trying to do is get more than three subdivisions per degree of arc. This seems inordinately painful.
[21:07] <mlelstv> possibly
[21:08] * Damni (~Damni@82.57.213.226) Quit (Quit: WeeChat 2.0.1)
[21:08] <caoliver> If you're measuring something a mile away, that's a hell of a lot of error.
[21:10] * caoliver will probably need to put another expensive MEMS gyro to measure change and just deal with a sloppy servo..
[21:11] <caoliver> Hey boss... how thick does your wallet feel?
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[21:12] * caoliver does not like telling folk to buy more $1000+ parts.
[21:14] <mlelstv> $1000+ might be cheaper than a RPI...
[21:15] <caoliver> Hmmm?
[21:16] <caoliver> Precision MEMS instruments are things I don't want to spec any more than strictly necessary.
[21:16] <mlelstv> if you can't make the RPI do what you want and the $1000+ does it easily.
[21:16] <caoliver> Each thousand eats project runways.
[21:16] * bobstro (~bob@mail2.ttlexceeded.com) Quit (Quit: leaving)
[21:16] <caoliver> And takes food out of my mouth.
[21:17] <caoliver> I.e. startupville with no outside seed yet.
[21:19] <caoliver> Why does everyone assume that if you have a good idea, you've got money to burn?
[21:19] <caoliver> Hence I'm a total miser here.
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[23:09] <egonsen> how can i configure a user to have access to gpios? pi has it, but i created a new user which i want to grant access too
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