**** BEGIN LOGGING AT Mon Nov 02 02:59:59 2015 Nov 02 04:55:19 anyone here? Nov 02 04:59:11 nope Nov 02 06:26:22 I thought it would be a great idea to dist-upgrade my beaglebone black from wheezy to jessie. Everythign seems to have gone ok except the kernel didn't get updated, and it is now too low of a version to support udev, which in turn breaks several packages. I've never compiled a kernel or updated one with anything other than apt. Can anyone help me upgrade my kernel please? Nov 02 06:27:19 nova_ .. you can 'apt-get' a linux-image with a new kernel Nov 02 06:27:57 so the usual 'apt-cache' command should give you some options Nov 02 06:28:06 do i need to add a special repo to do that or can i get it from debian servers? Nov 02 06:28:32 usual debian/rcn-ee servers Nov 02 06:28:55 i wonder why it didnt update along with the dist-upgrade Nov 02 06:29:10 usually a good idea not to, in case it breaks something Nov 02 06:29:15 even more so with arm devices Nov 02 06:29:42 so i should sudo apt-cache search linux-image and see what comes up? Nov 02 06:29:55 then i can sudo apt-cache install xxx? Nov 02 06:30:03 sorry sudo apt-get install.... Nov 02 06:30:03 much changes on the arm drivers/etc in kernels currently Nov 02 06:30:10 yeah, something like that Nov 02 06:30:39 much changes...do you mean im going to have trouble with a new kernel too? Nov 02 06:32:14 probably :) Nov 02 06:32:24 depends what peripherals/features you're using Nov 02 06:32:51 I havent' really messed with the BBB in a couple years..its been running rock solid...then out of the blue i can connect to my deluge-daemon running on it...so i thought maybe it needs an upgrade.... Nov 02 06:33:19 im not using much..just a little usb hard drive for the root fs Nov 02 06:34:27 all I can say is, be prepared :) Nov 02 06:34:50 my plan B, if I could not update the kernel, was to grab a new ubuntu or debian image and start from scratch....but that seems like so much work when i have services configured and working Nov 02 06:35:12 you may find its a less-stressful route Nov 02 06:36:29 the problem is my little netbook with the sd card reader is a windows machine..and i can't seem to find anything distributed as an img file Nov 02 06:36:53 usually xz'd for size Nov 02 06:37:03 7zip should read them though Nov 02 06:37:29 i opened them with 7zip and found another .tar inside. Nov 02 06:38:17 http://elinux.org/Beagleboard:BeagleBoneBlack_Debian Nov 02 06:39:24 jessie snapshots are 2/3 down Nov 02 06:39:45 2/3 down? Nov 02 06:40:59 oh sorry...2/3 down the page Nov 02 06:41:16 i think this is where i grabbed it lastnight to look...but ill check again Nov 02 06:41:44 'flasher' refers to images that program the emmc .. others are standalone Nov 02 06:42:41 yeah i think im going to go for the 4gb lxde standalone and load it onto a sd...i have the older 2gb mmc model Nov 02 06:43:07 but then i think i need to edit uenv.txt or something to change the root to the external usb hard drive Nov 02 06:43:14 thats the plan anyway Nov 02 06:44:32 oh well that is an .img file youre right...i wonder what i was looking at lastnight....maybe it was only the ubuntu images i was looking at Nov 02 06:44:42 yik Nov 02 06:45:05 i was considering a switch to ubuntu...which do you think would be best to run? Nov 02 06:46:00 i've not run the lxqt one yet .. only debian console images on my arm boards. I did run lxde once .. but I won't run anything as 'heavy' as ubuntu personally Nov 02 06:47:19 im not really worried about the DE at all i mostly use it via ssh...but i wouldnt mind having a DE for the heck of it.....I think I switched from lxde to xfce.....to me theyre about the same performance wise and one sucks less : D Nov 02 06:48:19 whether its debian or ubuntu, it would probably end up with xfce....absolutely not unity though Nov 02 06:52:12 maybe i should jsut man up a bit and do the console only Nov 02 06:54:05 :) Nov 02 06:55:38 i think that before plan B, i should still try plan A...updating the kernel to 4.something Nov 02 06:55:50 then when i break everything i can resort to a fresh image Nov 02 06:56:52 if you're only usng the software and not io/etc you're probably ok Nov 02 06:57:09 yeah i never got as far as using the io sadly Nov 02 06:58:01 im intimidated by electronics...heck 20 years of trying not to break linux and im still intimidated by linux Nov 02 07:03:46 pfft go for it. You'll never learn if you don't try :D Nov 02 07:06:04 oh i also wanted to ask..should i be thinking about rflashing the mmc with a new stock image or updating the bootloader in any way while im doing all this? Nov 02 07:06:40 depends really whether you have any reason to 'go back' .. no harm normally in updating everything Nov 02 07:08:12 aight time for shower .. bb.. Nov 02 07:18:52 apt-cache is telling me theres a 3.16.0 kernel available...i seem to have 3.8.13-bone30 kernal atm Nov 02 07:19:30 if i remember right the message i got yesterday suggested i need a 4.x version though. Nov 02 07:46:44 hi Nov 02 07:55:39 nova_: I would recommend one yes Nov 02 07:55:58 e.g. 4.1.12-ti-r26 Nov 02 08:05:32 nova:thanks zmatt....do you know how i can go about getting a 4.x kernel? Nov 02 08:06:47 zmatt:thanks zmatt....do you know how i can go about getting a 4.x kernel? Nov 02 08:06:55 lol im brain dead atm Nov 02 08:07:25 apt-get update ; apt-get install linux-image-4.1.12-ti-r26 Nov 02 08:08:33 i dont see that image with apt-cache though...the only version i see there is 3.16.0 Nov 02 08:09:56 and if i try to install 3.16.0 i get errors telling me i have unmet dependencies and that consolekit broke udev Nov 02 08:11:43 does beaglebone have a HAL support OS...? Nov 02 08:11:49 beagleboneblack* Nov 02 08:12:07 nova_: what image are you using? ( cat /etc/dogtag ) Nov 02 08:12:16 *filesystem image Nov 02 08:12:56 no such file or directory Nov 02 08:13:11 in other words, really ancient Nov 02 08:13:11 this was a debian wheezy image from a year or two ago Nov 02 08:14:14 uname -r tell me 3.8.13-bone30 Nov 02 08:14:17 tells* Nov 02 08:14:35 I thought rcn was still also building images for wheezy, but I don't really keep track of that stuff, I only use stretch Nov 02 08:15:04 well this all started when i tried to dist-upgrade from wheezy to jessie Nov 02 08:16:26 so maybe your apt repositories aren't set up right? or package trouble, dunno.... I started with a jessie console image, removed unnecessary crap, then upgraded to stretch and installed stuff as needed Nov 02 08:17:53 when i updated, i changed the repos from wheezy to jessie, but they seem to be the standard debian mirrors Nov 02 08:18:04 you need rcn-ee's repo also Nov 02 08:18:10 ahhh Nov 02 08:18:30 that might help Nov 02 08:18:33 deb http://repos.rcn-ee.com/debian/ jessie main Nov 02 08:18:48 thank you! ill get that in there and try Nov 02 08:19:50 i might eun into a snag though....just a minute ago i tried to install the 3.16.0 kernel from debian and it fails to install because of all the unmet dependenciy issues with udev and consolekit and everything else. Nov 02 08:20:12 is there a way to force it to just install the kernel and ignore the rest for now? Nov 02 08:20:59 depends on the state you're in right now... if all of your packages are still wheezy then you can just switch your repos back to wheezy Nov 02 08:21:07 if you're halfway through, you may have no way but forward Nov 02 08:21:39 i think im all the way to jessie now, with the exception of the packages that rely on a newer kernel Nov 02 08:22:10 what packages? I don't think any of them rely on a specific kernel version Nov 02 08:22:17 even on stretch I could still install 3.8 Nov 02 08:22:23 if I wanted to Nov 02 08:23:27 the error i saw near the end of the dist-upgrade was about udev not being able to be updated because of the kernel version, as a result other packages are going to break Nov 02 08:23:55 it suggested i could apt-get -f install but then i will likely be unable to reboot Nov 02 08:24:15 do you have a console cable in case of emergency? Nov 02 08:24:32 i dont :/ Nov 02 08:24:55 have you made a backup of any relevant data? :P Nov 02 08:25:17 your description still sounds really vague Nov 02 08:26:34 i know..i should have written it down. Nov 02 08:26:50 can you still ssh into the system? Nov 02 08:27:13 yes, and im connected to a monitor with a terminal right now Nov 02 08:27:25 but ssh also works Nov 02 08:27:25 ok, one sec Nov 02 08:27:35 yeah but you can't copy/paste from a monitor ;) Nov 02 08:27:43 true Nov 02 08:28:25 (well... you can in case of our server whose text-mode screen output is also available by telnetting to its BMC, but I digress..) Nov 02 08:30:25 here' Nov 02 08:30:32 here is what i see now with apt-get Nov 02 08:30:37 http://pastebin.com/kkYzndfp Nov 02 08:30:45 dpkg-query -W -f='${Status} ${binary:Package} ${Version}\n' Nov 02 08:31:59 bah..my terminal buffer is too small to catch it all Nov 02 08:32:01 ok so to begin with that linux-image looks really problematic Nov 02 08:32:16 ok i will ignore it then Nov 02 08:33:46 that command is returning alot of results...i set the buffer to 5000 lines and its still only c-z Nov 02 08:34:05 its going to to be another couple thousand lines i think Nov 02 08:34:08 you have more than 5000 packages installed? o.O Nov 02 08:34:16 well probably l-l is taking up most of it Nov 02 08:34:26 specifically liba-libz :P Nov 02 08:35:50 lol pastebin says "please wait" Nov 02 08:36:04 I get around 319 packages on our console BBBs and 540 on one with a GUI... Nov 02 08:36:17 (though really really minimal GUI, I'll admit) Nov 02 08:37:29 http://pastebin.com/KWz1Kz7J Nov 02 08:37:58 i loaded xfce..i dont recall if it started out as console only or had lxde to begin with Nov 02 08:38:59 then ive played around with apache and bind9 and whatever else seemed fun Nov 02 08:40:43 its been my WINS, NTP, dns cache, and torrent box mostly...I dont even use the DE, except when i had to change some ssh keys Nov 02 08:43:13 nova_: but if you previously were missing rcn-ee's repo, now that you've added it have you tried apt-get update and dist-upgrade again? Nov 02 08:43:16 that might help Nov 02 08:44:23 aptitude may also be better at solving package problems, although with this many packages it'll probably unusably slow Nov 02 08:45:53 but unless you have prior experience with dealing with a failed upgrade it may be simpler to just reflash the thing Nov 02 08:46:54 ok, so actually your upgrade never completed Nov 02 08:47:16 i havent added the repos yet but thats the plan just as soon as i build up the guts to try it...but i just foresaw there being an issue installing just the required image without everything else balking at me Nov 02 08:47:30 I see various packages unpacked but not installed Nov 02 08:48:15 is that why its trying to still install them along with the specific packages im telling it to get? Nov 02 08:48:27 yes Nov 02 08:48:38 and why it's asking for apt-get -f install Nov 02 08:48:57 but first make sure you've done an apt-get update so it knows about rcn-ee's repo Nov 02 08:49:07 yes ill do that first and have another look Nov 02 08:49:18 i think this is were it all fell apart though "install ok half-configured udev 175-7.2" Nov 02 08:49:25 also wth, right now you have no kernel installed? Nov 02 08:49:39 that seems unlikely Nov 02 08:49:51 it lists no linux-image Nov 02 08:50:32 when i run uname-r returns "3.8.13-bone30" Nov 02 08:50:44 yes that the kernel you're running Nov 02 08:50:59 is it still installed? (check /boot ) Nov 02 08:51:57 i need to check /boot on the boot device correct? I have the root fs set to an external HD Nov 02 08:53:10 drwxr-xr-x 4 root root 4096 Nov 14 2013 . Nov 02 08:53:11 drwxr-xr-x 21 root root 4096 Oct 31 04:32 .. Nov 02 08:53:11 -rw-r--r-- 1 root root 109070 Nov 13 2013 config-3.8.13-bone30 Nov 02 08:53:11 drwxr-xr-x 2 root root 4096 Nov 14 2013 dtbs Nov 02 08:53:11 -rw-r--r-- 1 root root 2382952 Nov 13 2013 System.map-3.8.13-bone30 Nov 02 08:53:12 drwxr-xr-x 2 root root 16384 Dec 31 1969 uboot Nov 02 08:53:14 -rwxr-xr-x 1 root root 3341744 Nov 13 2013 vmlinuz-3.8.13-bone30 Nov 02 08:53:14 it better be mounted at /boot then since that's where the kernel gets put Nov 02 08:53:16 lrwxrwxrwx 1 root root 21 Nov 14 2013 zImage -> vmlinuz-3.8.13-bone30 Nov 02 08:53:43 don't paste anything more than a line or two in the channel please Nov 02 08:53:53 ok sorry Nov 02 08:53:54 where is that directory located now? Nov 02 08:54:12 that is out of the root fs /boot..i think its on the HDD Nov 02 08:54:30 but it's not actually /boot ? Nov 02 08:54:58 i dont think so Nov 02 08:55:55 here is fdisk -l http://pastebin.com/9LfFJciv Nov 02 08:55:57 ok so debian has no idea about that dir or its significance Nov 02 08:56:17 that isn't useful info Nov 02 08:56:32 but debian should be writing into the real boot dir on the sd card right? Nov 02 08:57:08 it has no idea that that's the real boot dir if you have a different root filesystem and didn't setup something like a bind mount for /boot Nov 02 08:57:21 so those files are currently outside package management Nov 02 08:58:59 pff, sorry, I think you've run out of tech support credits with me for today :P Nov 02 08:59:18 heh ok Nov 02 08:59:22 thanks for the help though Nov 02 09:00:24 but debian will just put the kernels in /boot, regardless of where that's located or whether that's the same place the bootloader is going to look for it... if you have a nonstandard setup then it's also your responsibility to ensure those two match Nov 02 09:00:34 I think this is what I did to uEnv.txt to make it run to root fs from the HDD, http://pastebin.com/pH03PWTu Nov 02 10:31:38 Hi everyone. I'm trying to get Molloy's SPDEV to work using the C++ code from his website. When I compile it I get a lot of weird errors. Anyone have any ideas? Nov 02 11:29:38 showing errors might , but just might, help Nov 02 11:31:11 The err file is about 70kB - how should I show it? Nov 02 11:33:29 Here's the firsts few err lines:In file included from /usr/include/c++/4.6/ios:43:0, from /usr/include/c++/4.6/ostream:40, from /usr/include/c++/4.6/iostream:40, from SPIDevice.cpp:28: /usr/include/c++/4.6/bits/ios_base.h:411:13: error: 'streampos' in namespace 'exploringBB::std' does not name a type /usr/include/c++/4.6/bits/ios_base.h:412:13: error: 'streamoff' in namespace 'explor Nov 02 11:36:02 pastebin is a solution for pasting large files, yet this might be a c++ syntaxt thing .. so not beagle related.. i guee Nov 02 11:39:42 I'm using a compiler (gcc, g++) that arrives installed on the BBB, so maybe it is a beagle thing Nov 02 11:50:45 im looking at the debian 8 image, does the script "/opt/scripts/tools/mv-rootfs-dev-sda.sh" allow me to boot from a sd card them run the rootfs from a usb hard drive like it sounds like it does? Nov 02 11:52:12 I managed this before by tweaking uEnv.txt but i don't see that file on the newer debian 8 image Nov 02 12:02:11 Nova_: uEnv.txt is on my BBB - what do you do to it? Nov 02 12:08:14 ... Nov 02 12:09:00 its at /boot/uboot/uEnv.txt Nov 02 12:24:40 Peter: odd, i have nothing in that folder Nov 02 12:27:10 Peter: I previously had debian 7 off a usb HDD, after having modified uEnv.txt. I just wrote a fresh debian 8.2 image to a sd card and i was looking for this file to see if i can do the same thing i did before..but no uEnv.txt files exists Nov 02 12:27:28 sorry, running off of a USB HDD... Nov 02 12:28:33 but i found a mysterious script that seems very aptly named "mv-rootfs-dev-sda.sh" and I have a feeling that it takes care of the process for me....I hope so anyway Nov 02 12:41:13 nova_, if you hang around ... or not .. Nov 02 13:49:12 hey Nov 02 13:49:16 is Debian (BeagleBone, BeagleBone Black - 4GB SD) 2015-03-01 Nov 02 13:49:17 hard float? Nov 02 13:49:29 I think so Nov 02 13:50:04 O: Nov 02 13:50:27 thank u for the info Nov 02 13:51:02 i know BBB has this NEON thing but it says is for accelerating Nov 02 13:51:10 so it might be software ;x Nov 02 13:53:02 thank u ill assume its hard float then <(^_^<) Nov 02 13:58:08 you can do neon with soft float too Nov 02 13:58:15 its not about software floating point Nov 02 13:58:24 its about the calling convention Nov 02 14:00:13 people will never understand the difference between hfp, sfp and fully software emulated FP Nov 02 14:19:23 tbr: well, what's a difference between sfp and fully emulated fp? Nov 02 14:19:43 i was always under assumption that you either have hardware that does FP or you don't Nov 02 14:24:51 yes Nov 02 14:25:11 but for a long time, it was hardware FP but with soft fp calling conventiones Nov 02 14:25:25 so you passed float args in integer regs, not in float ones Nov 02 14:27:01 There are 3 hard problems in computer science: caching, naming and ARM ABIs. Nov 02 14:27:36 and off by one errors Nov 02 14:27:47 i thought it's 2 problems in computer science, cache invalidation, naming things and off by one errors Nov 02 14:27:48 still 3 Nov 02 14:27:48 and IIRC sfp binaries will run on both non-fpu and fpu hw transparently Nov 02 14:29:07 so hard fp is normal fp with arguments passed in proper fp registers, sfp is hard fp with arguments passed in integer registers and then the library loads them into correct fp registers, and emulated fp is fully emulated Nov 02 14:29:39 so i presume reason for it is so sfp stuff can easily be ported between hardware with fp and hardware without Nov 02 14:31:41 as most mainstream silicon comes with FPU it started to make sense to transition to HFP, the gain is minimal and mostly measured by specific workloads Nov 02 14:32:12 under synthetic conditions you can get 10% or so, IIRC Nov 02 14:32:42 hi Nov 02 14:32:46 I need to install "net-snmp" in embedded system, type: "beaglebone black" with Debian. What version is best for my system? Nov 02 14:32:56 a big problem is binary only crap like gpu drivers, those have been a major obstacle to transition Nov 02 14:33:17 tbr: gpu drivers where? Nov 02 14:33:25 fr1: it's debian, just get the debian package Nov 02 14:33:40 tbr: i would expect gpu to be so floating point heavy that noone would even attempt to run it on emulated fp Nov 02 14:33:50 jacekowski: a few years ago when hfp started to gain traction it was impossible to get drivers Nov 02 14:34:07 they were all compiled for sfp Nov 02 14:34:34 i presume we are talking about embedded only right now Nov 02 14:34:50 because PC's had hfp for 30 years now Nov 02 14:35:05 jacekowski: again, no emulation involved, the only difference is a binary incompatible calling convention Nov 02 14:35:23 jacekowski: ARM PCs didn't Nov 02 14:35:28 i've had a pc with external coprocessor Nov 02 14:35:35 and external cache Nov 02 14:35:42 ARM? Nov 02 14:35:46 x86 Nov 02 14:36:02 * tbr checks if he is on the wrong channel Nov 02 14:36:19 no, it's about beagle and those are ARM only, so stop moving the goal post and stay on topic. Nov 02 14:36:27 sorry Nov 02 14:36:28 tbr: I need to use mib2c, > Login as root user > Extract downloaded Net-SNMP-version 5.2.1 source package > go to .../net-snmp-5.2.1 > run "./configure" > run "make" > run "make install" > run "cd perl" > run "perl Makefile.PL" > run "make" > run "make install " Nov 02 14:37:23 fr1: it's a debian, you can do whatever you want on a standard debian system with it Nov 02 14:37:54 tbr: /usr/bin/ld: cannot find -lperl collect2: ld returned 1 exit status make[1]: *** [snmpd] Error 1 make[1]: Leaving directory `/net-snmp-5.4.4/agent' make: *** [subdirs] Error 1 Nov 02 14:38:26 tbr: you have any idea for the error? Nov 02 14:38:57 fr1: I know nothing about this. I'd suggest to take your problem to either debian users or the community for that perl package Nov 02 14:39:11 okay Nov 02 14:39:35 this channel is for beagleboard.org specific problems, yours is a generic build problem Nov 02 14:40:42 tbr:thanks Nov 02 14:47:30 fr1: why don't you just install 'libnet-snmp-perl' anyway? Nov 02 14:48:34 tbr: okay I try Nov 02 14:49:17 I mean, you say you want net::snmp and as I Initially said, there's a package Nov 02 14:49:44 why would you want to build it? that's just unnecessary pain unless you have good reasons Nov 02 14:58:19 tbr: okay clear Nov 02 18:17:29 Hi everyone... I'm looking for the memory map table for Black. I mean, the address table that shows devices addresses as well as DDR memory address range... I could not find anywhere.. Nov 02 18:45:05 ok.. thanks... Nov 02 18:47:01 you're welcome ... https://docs.google.com/spreadsheets/d/1hRgpmJ-4Yeojyl8XPO9n3IoYSWKPkg6oRnEvdfV_RaM/edit Nov 02 20:06:10 Hello Nov 02 21:56:11 <[Butch]> Quick question: Are there any bonescript gurus around whose brains I can pick about how to structure some code? Nov 02 22:05:36 Not I. Just got my ¨Exploring Beaglebone¨ today and am looking forward to learning all about it. Nov 02 22:14:28 Be sane. Use C. Nov 02 22:16:08 Well at least they didn't ask how to blink an LED in bone script. Nov 02 22:19:45 hi, need some help connecting my grove buzzer to a grove relay Nov 02 22:20:01 grove relay is connected to my beaglebone green board Nov 02 22:20:17 i dont know how to connect the buzzer to the relay Nov 02 22:20:38 i am electronics ignorant Nov 02 22:21:56 can someone please help me out ? Nov 02 22:26:47 Does the Grove Wiki not help? Nov 02 22:27:07 no it doesnt Nov 02 22:27:39 thats why i thought i wd ask here Nov 02 22:28:17 the diagram on the tiny booklet which came with the bbg has a bi-drectional arrow (in the air) between the relay and the buzzer Nov 02 22:28:25 i dont understand what to make of it Nov 02 22:28:44 does it mean that i have to do wiring or breadboard jumper(s) ? Nov 02 22:32:32 Ok. I don´t have the gear. Buf I´d connect the relay to the main board. Then you have the wire for the buzzer. SIG, VCC and Gnd. I´d connect SIG and VCC together and to Power then connect GND via the relay contacts. Nov 02 22:33:01 Activating the relay would then turn on the buzzer. Is this what your trying to do? Nov 02 22:34:28 but the relay has just one connection to the bbg board Nov 02 22:34:36 how do i connect the buzzer to the relay ? Nov 02 22:34:42 that is my question Nov 02 22:35:05 there is no open physical port for me to connect Nov 02 22:40:01 i cant find anything online which shows the diagram i have Nov 02 22:43:50 http://www.seeedstudio.com/wiki/File:Twig-Relay.jpg Nov 02 22:44:03 The Green connector on this relay Nov 02 22:46:40 yes, it has 2 screws on the top and small slits for something Nov 02 22:46:44 i dont know what Nov 02 22:49:49 The is the switch. These contact get joined to gether when the relay is activated. So if you connect real GND into one of those terminals and the GND from the Buzzer into the other. When the relay is on it will short them together completing your circuit. Nov 02 22:49:51 can the buzzer be wired directly to the bbg board instead of the relay ? Nov 02 22:50:27 Youĺl need a small flat blade screwdriver to open the screws and insert your wires and tighten again. Nov 02 22:50:34 sorry what is "real GND" ? Nov 02 22:51:02 Just actual connect to GND on your board somewhere. Nov 02 22:52:39 there is a socket to connect the relay to the board using standard cables they have provided Nov 02 22:52:54 the black, red, white, yellow wires Nov 02 22:53:08 i just dont know how to connect the buzzer to the relay Nov 02 22:53:41 the buzzer by itself has a similar cable leading out/in to it ... i just dont have a place to connect it to Nov 02 22:56:16 http://www.seeedstudio.com/wiki/File:Conn-four.jpg Nov 02 22:56:35 Is this the buzzer. Doesn´t is connect to the board directly also. Nov 02 22:57:01 yes this is the buzzer Nov 02 22:57:29 but the connection diagram which came with the bbg kit only shows connecting the relay to the board Nov 02 22:57:56 the connection between the buzzer and the relay is "hanging" in thin air and is biderectional Nov 02 22:58:02 Take a look here: http://www.seeedstudio.com/wiki/Grove_-_Buzzer Nov 02 22:58:03 bi-directional ... Nov 02 22:58:33 it goes both ways ... bi directional Nov 02 22:58:38 saw that already, but beaglebone green (the board) is not covered Nov 02 22:59:00 any online link to that diagram your talking about. Nov 02 22:59:02 is there a way for me to share the diagram using fileshare or imageshare ? Nov 02 22:59:15 i couldnt find any online link yet Nov 02 22:59:36 the the beagle board green have it's own wiki? Nov 02 23:00:00 yes, but the grove relay connection is not covered Nov 02 23:02:10 I´ll have a look and see if I can find anything Nov 02 23:02:56 sure thanks, let me see what is the best i can send u as a link here in the next 5 mins Nov 02 23:03:52 http://www.seeedstudio.com/wiki/File:Aws_kit_bbg.JPG Nov 02 23:04:01 http://www.seeedstudio.com/wiki/File:Aws_kit_bbg_wiki_guide_e1.jpg Nov 02 23:04:19 these are the 2 images i could find.... but they dont have connection for the relay Nov 02 23:04:23 thats where i am stuck Nov 02 23:04:43 i have been able to connect the temp sensor and the oled display etc... Nov 02 23:05:31 just the relay part has got me stuck since there are 2 things which need this to connect - a) the grove buzzer and b) the grove button Nov 02 23:05:57 Ok. So there are 2 x Grove connector on the BBG board. Can´t you directly connect the relay or the buzzer to one of these. Nov 02 23:08:17 thats what i meant to ask Nov 02 23:08:28 since the relay is connected to the board Nov 02 23:08:44 is connecting the buzzer directly to the board feasible ? Nov 02 23:09:05 as in, does it make sense Nov 02 23:09:06 ? Nov 02 23:09:17 if yes, where do i connect it to ? Nov 02 23:09:49 i have an i2c hub which has an open port Nov 02 23:10:08 can i use that for the buzzer ? even though thats not mentioned in the diagram ? Nov 02 23:10:30 Are the 2 x Grove connector on the BBG the same. As in give the same functionality. If so then connect relay to one and buzzer to the other Nov 02 23:10:54 i have the i2c hub connected on one already Nov 02 23:11:08 thats what's got my oled display and my temperature sensor connected Nov 02 23:11:57 one quick question, when i add remove sensors etc.. do i need to power down the beagleboard green ? or can i make these hardward changes on the fly with actual power supply ? Nov 02 23:12:32 so far, just to be careful, i always power down the board and then make hardware modifications ... Nov 02 23:13:04 Safer to power down. Just seen this: http://www.seeed.cc/beaglebone_green/ Nov 02 23:13:37 Doesn´t appear to support relay or buzzer. Only I2C devices? Nov 02 23:14:19 What is the I2C hub? Nov 02 23:14:34 let me send u a link Nov 02 23:15:35 http://www.seeedstudio.com/wiki/Grove_IoT_Starter_Kits_Powered_by_AWS Nov 02 23:15:57 this has the buzzer, relay and the i2c etc.. etc.. under the beaglebone green section Nov 02 23:16:45 http://www.seeedstudio.com/wiki/Grove_IoT_Starter_Kits_Powered_by_AWS#Beagle_Bone_Green_and_Grove_IoT_Starter_Kit_Powered_by_AWS Nov 02 23:18:54 This is more specific -> http://www.seeedstudio.com/wiki/Grove_Starter_Kit_for_BeagleBone_Green Nov 02 23:20:35 it has the schematics for the relay and the buzzer in ordered sequence so can u have a quick look ? Nov 02 23:22:49 do i really need the relay if the buzzer can connect via the i2chub to the bbg board ? Nov 02 23:23:36 Ćheck Page 4-5 here. You would connect the relay and buzzer to the digital I/O section of the expansion board Nov 02 23:23:39 http://www.seeedstudio.com/wiki/Grove_Starter_Kit_for_BeagleBone_Green Nov 02 23:23:58 Sorry, here: http://www.seeedstudio.com/document/pdf/Introduction%20to%20Grove.pdf Nov 02 23:25:12 ok will do Nov 02 23:25:45 just wanted to check once again on your thoughts if i connected the buzzer to the board directly do i still need the relay ? Nov 02 23:29:18 No. Don´t think you´d need the relay. The buzzer should use less than 10mA so safe to directly connect to I/O pin. The connects supplied with the relay and buzzer won´t directly connect to the BBG or the I2C hub. You´ll have to do some wiring mods and connect to the pin headers on either side of the BBG. I Nov 02 23:29:39 I´m not too familiar with the BBG so you´ll have to look at some schematics. Nov 02 23:29:54 ok, thanks Nov 02 23:30:14 btw i did find a recipe which might be close to what i want to do Nov 02 23:30:25 my requirements are more basic however Nov 02 23:30:34 thanks so much for your help Nov 02 23:30:41 take care, bye Nov 02 23:31:06 sorry, here is the recipe -> http://www.seeedstudio.com/recipe/index.php?controller=recipe&action=show&recipe_id=363&ref=product Nov 02 23:31:18 almost missed that :) Nov 02 23:36:23 Thats pretty close alright. So you can connect the relay to the UART connector. Surprising that but if must be configured for I/O mode. Best of luck with it. **** ENDING LOGGING AT Tue Nov 03 02:59:58 2015