[arm-allstar] Power fail script

[Doug Crompton]

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>
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> 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>*
>
>
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