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by devnull
Wed Jan 15, 2014 11:05 am
Forum: Arch
Topic: mongoDB on ARCH
Replies: 2
Views: 1995

mongoDB on ARCH

Has anyone succeed in installing mongoDB on ARCH, using either of these 2 repos: https://github.com/skrabban/mongo-nonx86 https://github.com/RickP/mongopi I am getting compile errors such as: In file included from src/third_party/boost/boost/thread/pthread/mutex.hpp:14:0, from src/third_party/boost/...
by devnull
Tue Oct 15, 2013 11:23 pm
Forum: Arch
Topic: RTC Auto Update from NTPD
Replies: 1
Views: 1223

RTC Auto Update from NTPD

I have googled this and was surprised not to find any similar question / answer. I understand that the system clock can be adjusted to the hwclock during bootup, however for a device which may not be rebooted for several months this is not practical and periodic syncing is needed to keep the hwclock...
by devnull
Sun Sep 29, 2013 10:37 am
Forum: Arch
Topic: Most reliable method for 500ms watchdog pulse
Replies: 8
Views: 2317

Re: Most reliable method for 500ms watchdog pulse

Thanks for all the suggestions.

I ended up using the Hardware PWM on GPIO18 in the end.
by devnull
Thu Sep 26, 2013 11:51 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 129954

Re: kernel patch for Dallas 1-wire interface

Is it possible force an immediate check of connected devices and ignore devices that may have been disconnected in the last few minutes ? Or is it possible to remove all devices ? If I disconnect a sensor, then it still shows up for some time afterwards, and I am trying to implement a function that ...
by devnull
Tue Sep 24, 2013 9:33 am
Forum: Arch
Topic: Most reliable method for 500ms watchdog pulse
Replies: 8
Views: 2317

Re: Most reliable method for 500ms watchdog pulse

Hi Joan;

Do you have any alternative solutions based on the criteria above ?

Thanks

PeterC
by devnull
Mon Sep 23, 2013 12:36 pm
Forum: Arch
Topic: Most reliable method for 500ms watchdog pulse
Replies: 8
Views: 2317

Re: Most reliable method for 500ms watchdog pulse

Thanks, I have a microcontroller monitoring this watchdog, the pulse width is not so critical. Each rising edge of the PI's GPIO resets an interrupt timer on the microcontroller, if the timer exceeds several seconds then the micro assumes that the PI is either down or is not responding. So the pulse...
by devnull
Mon Sep 23, 2013 11:47 am
Forum: Arch
Topic: Most reliable method for 500ms watchdog pulse
Replies: 8
Views: 2317

Re: Most reliable method for 500ms watchdog pulse

Thanks so much, but I have zero experience with C, would not know where to start. You library seems very comprehensive, but as you mention, probably a bit of an overkill for this. Is there a second best method that would fit within the scope of my knowledge i.e. python, node/js, bash :-) I don't nee...
by devnull
Mon Sep 23, 2013 1:16 am
Forum: Arch
Topic: Most reliable method for 500ms watchdog pulse
Replies: 8
Views: 2317

Most reliable method for 500ms watchdog pulse

I need to send a 500ms watchdog pulse to the GPIO, currently I am doing this from within a node app as it is already running a 500ms interval timer. But this pulse is not reliable, as when node is busy doing other stuff, the pulses may not happen. What would be the most reliable way of getting a 500...
by devnull
Tue Aug 20, 2013 2:12 am
Forum: Arch
Topic: headless bluetooth pairing
Replies: 22
Views: 86139

headless bluetooth pairing

I am struggling to get a bluetooth device with a 4 digit keycode paired from the command line (no GUI). After installing bluez and bluez-utils, the dongle and device to be paired are found: hciconfig hci0 up hcitool scan > Scanning ... 00:19:5D:EE:3E:04 OmniTek_Bluetooth I then run bluetoothctl to a...
by devnull
Wed Jul 24, 2013 10:32 pm
Forum: Troubleshooting
Topic: Act LED blinks 8 times no video
Replies: 63
Views: 15905

Re: Act LED blinks 8 times no video

Problem for me is I am away from my workstation and so this is a headless install.
I have a dozen Pis @ home and never seen this problem, however my other boards are model A.

I need to develop something on-site and this is a bit of a show-stopper !!
by devnull
Wed Jul 24, 2013 10:56 am
Forum: Troubleshooting
Topic: Act LED blinks 8 times no video
Replies: 63
Views: 15905

Re: Act LED blinks 8 times no video

I have the same problem with a Version B just received this morning from RS. 8 flashes, and I cannot find any reference to 8 flashes, only 7 flashes max. I have tried both the raspian and arch repos, and re-flashed the new card (also just receive from RS) several times using dd. I've done dozens of ...
by devnull
Sun Feb 24, 2013 10:07 am
Forum: Python
Topic: Interrupts
Replies: 24
Views: 4032

Re: Interrupts

Have you tried it with RPIO, my extension of RPi.GPIO with interrupt handling?
Chris, I have installed your RPIO extensions and they work great, thanks.

Any plans to add more functions ?? - bit banging serial on any port would be a nice one, pwm is also useful.

PeterC
by devnull
Sat Feb 23, 2013 12:13 pm
Forum: Python
Topic: Interrupts
Replies: 24
Views: 4032

Re: Interrupts

OK, I have the interrupt working, however I have discovered that if you have more than one interrupt setup, they all appear to fire when any one of them fires.

Can someone verify this ??

Thanks

PeterC
by devnull
Sat Feb 23, 2013 12:11 pm
Forum: Python
Topic: Interrupts
Replies: 24
Views: 4032

Re: Interrupts

Anyway in trying jojopi's script above, I am getting this error: Traceback (most recent call last): File "wiringpi-motion-test-3.py", line 11, in <module> print wiringpi.waitForInterrupt(24,5000) AttributeError: 'module' object has no attribute 'waitForInterrupt You need to install it from here: ht...
by devnull
Sat Feb 16, 2013 8:30 am
Forum: Arch
Topic: silent boot & agetty
Replies: 2
Views: 1057

silent boot & agetty

Hi; I've managed to achieve an almost silent boot, with the exception of the following message during autologin with agetty: ExecStart=-/sbin/agetty --noclear --nohints --noissue -a root %I 38400 linux alarmpi login: root (automatic login) apparently this is a known issue and was fixed by someone: h...
by devnull
Sat Feb 16, 2013 4:02 am
Forum: Arch
Topic: Screen Blanking yet Again
Replies: 7
Views: 4178

Re: Screen Blanking yet Again

It may help to know how xset DOESN'T work in your situation. Is there an error message returned at all? Is xset available on your system (should be)? Thanks, when i ran any xset command there were no errors, no response at all, so I ran "xset q" and also got no response, so i uninstalled and delete...
by devnull
Wed Feb 13, 2013 12:44 pm
Forum: Troubleshooting
Topic: Begging for HELP!
Replies: 14
Views: 1005

Re: Begging for HELP!

Looks like you are missing the blue HDMI signal, this is almost certainly a cable / connector issue and not RPI hardware related.

I have also seen similar things with a bad connector.

PeterC
by devnull
Wed Feb 13, 2013 12:25 pm
Forum: Arch
Topic: Screen Blanking yet Again
Replies: 7
Views: 4178

Screen Blanking yet Again

I solved my screen blanking under raspian by editing the /etc/kbd/config file with: BLANK_DPMS=off POWERDOWN_TIME=0 BLANK_TIME=0 And that solved the blank screensaver problem on RASPIAN, however I have now switched to ARCH and despite searching for several days on this forum and google, I cannot fin...
by devnull
Fri Feb 08, 2013 2:59 am
Forum: Arch
Topic: python memcache broken ??
Replies: 2
Views: 1311

Re: python memcache broken ??

Ok, this is resolved, the memcached daemon was not running. I only moved to arch 2 days ago from ubuntu/debian/raspian and are still getting used to things, I assumed that when I installed memcached using pacman, that the services would be installed and started automagically, but they weren't. PeterC
by devnull
Thu Feb 07, 2013 1:38 pm
Forum: Arch
Topic: python memcache broken ??
Replies: 2
Views: 1311

python memcache broken ??

I have just switched to archlinux and up until now, everything is really great and 'I'm loving it'. Problem is with memcache and python, it works great under raspian but under arch nothing appears to work, no error messages, but no data. I have stripped out the rest of the code, this is the basics w...
by devnull
Thu Feb 07, 2013 10:54 am
Forum: Raspbian
Topic: Painfully Slow Browser
Replies: 20
Views: 12847

Re: Painfully Slow Browser

Hi; Thanks, yes, I have solved both the top titlebar and the status bar at the bottom: 1) To get rid of the top titlebar use the "-use_titlebar no" command: matchbox-window-manager -use_titlebar no & 2) To hide the status bar at the bottom, add the following to ~/config/luakit/window.lua w.sbar.ebox...
by devnull
Thu Feb 07, 2013 8:17 am
Forum: Raspbian
Topic: Painfully Slow Browser
Replies: 20
Views: 12847

Re: Painfully Slow Browser

Hi; Strange, I just installed luakit (archlinux) and when it launches, it has the top navigation bar, and a horrible black status bar along the bottom. to get rid of the titlebar: matchbox-window-manager -use_titlebar no & Now, just need to get rid of the status bar !! Yes, it is definitely faster, ...
by devnull
Thu Feb 07, 2013 7:35 am
Forum: Raspbian
Topic: Painfully Slow Browser
Replies: 20
Views: 12847

Re: Painfully Slow Browser

OK, I know why I was getting the error, I was not launching it wit xinit, but instead calling the script directly. I am now testing luakit, but does anyone know how to make it start full screen either through the config files or command line ?? I know that F11 will put it into fullscreen, but can't ...
by devnull
Thu Feb 07, 2013 12:38 am
Forum: Raspbian
Topic: Painfully Slow Browser
Replies: 20
Views: 12847

Re: Painfully Slow Browser

Hi; Thanks, no extra configuratons, I just followed the initialization steps here: http://www.rpiforum.net/forum/tutorials/article/7-full-guide-to-arch-linux-on-the-raspberry-pi/ the rest is the same other than using echo to create the startup file but the result is the same, there was one step miss...
by devnull
Wed Feb 06, 2013 11:58 pm
Forum: Raspbian
Topic: Painfully Slow Browser
Replies: 20
Views: 12847

Re: Painfully Slow Browser

Hi; Thanks, still can't get the matchbox to run midori on a brand new fresh install, here's the precise step by step: Clone the Card: dd of=/dev/rdisk2 if=//Volumes/340GB/archlinux-hf-2013-01-22.img bs=512m Setup ARCH: ## UPDATE S/W & F/W pacman -Sy pacman pacman-key --init pacman -S archlinux-keyri...

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