[arm-allstar] Power fail script

David McGough kb4fxc at inttek.net
Sun Oct 21 19:44:39 EDT 2018



Luc,

Make sure the script is set executable once you've copied into the 
destination folder....Like this from a bash prompt:


chmod 755 etc/asterisk/local/check_power_fail.sh

...Then, try to run it.

73, David KB4FXC


On Sun, 21 Oct 2018, "Luc Drolet VE2LUQ via ARM-allstar" wrote:

> Doug,

OK, I paste your script into /etc/asterisk/local/power_fail_check.sh
subsequently how to make it run?

I even made a reboot, and I have an error message? bash: /etc/asterisk/local/check_power_fail.sh: No such file or directory
this commende I use the line 9-Start Bash shell interface

how to start?

Thank you

73’s
Luc
VE2LUQ



> Le 21 oct. 2018 à 18:10, Doug Crompton <wa3dsp at gmail.com> a écrit :
> 
> Luc,
> 
>   /etc/asterisk/local  is a good place to put it especially if you make changes in it. We could put that out as a script for all and in that case it would get over written in the /usr/local/sbin directory.  That is true of any script you modify. You just need to call it with the full path - /etc/asterisk/local/check_power_fail.sh
> 
> 73 Doug
> WA3DSP
> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>
> 
> 
> On Sun, Oct 21, 2018 at 5:30 PM Luc Drolet VE2LUQ <ldrolet at cgocable.ca <mailto:ldrolet at cgocable.ca>> wrote:
> Good evening Doug,
> 
> To put the script in our raspberry PI, can you tell us what is the best place on the PI rasberry
> in /etc/asterisk/local or somewhere else?
> 
> I read your text and if I understand correctly we can change the give as 5 minutes to 10 minutes for the transmission delay if there is a power failure
> so if it works well in my opinion the best place will be in /etc/asterisk/local?
> 
> Thank you for your execllent work
> 
> 73’s
> Luc
> VE2LUQ
> 
> 
> 
>> Le 20 oct. 2018 à 22:55, Doug Crompton via ARM-allstar <arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>> a écrit :
>> 
>> Attached is a power fail check script using the Pi GPIO. By default it assumes bit 24, pin 35 of the Pi. This bit is pulled low to indicate a power failure. This could be achieved by a SPDT relay or a clean 3V (no more!) source powered from the mains. Of course to use this the Pi must be powered from a source independent of the mains.
>> 
>> The script has a timer set to 30 seconds before it assumes a power fail. It sends a "power fail set" message at start and after a power failure is over.  When a power failure is happening it says "power failure" on the air locally every 5 minutes.
>> 
>> Times and GPIO bits are changeable in the script.
>> 
>> The script, after checking, is run in the background and uses an interrupt requiring scant resources.
>> 
>> Copy this script to your server and make it executable -  chmod 750 power_fail_check.sh
>> 
>> 73 Doug
>> WA3DSP
>> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>
>> 
>> 
>> <power_fail_check.sh>_______________________________________________
>> 
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>> 
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