[arm-allstar] Fan Control

[Doug Crompton]

Correction - one line was left out in the last email. The events section
should have these two lines -

/etc/asterisk/local/check_fan 1 = s|t|RPT_TXXKEYED
/etc/asterisk/local/check_fan 0 = s|f|RPT_TXKEYED

*73 Doug, WA3DSP*
*http://wa3dsp.org <http://wa3dsp.org>*

On Tue, Apr 28, 2020 at 12:42 PM Doug Crompton <wa3dsp at gmail.com> wrote:

> Ron,
>
>  I l;ooked way back at that original email. While that should work there
> is a slightly better way to do it....
>
> Create this script at the Linux prompt -
>
> cd /etc/asterisk/local
>
> nano check_fan
>
> Then enter this -  Change the 23's to another bit if you want
>
> #!/bin/bash
>
> gpio mode 23 out
>
> if [ "$1" = "1" ]
>   then
>     gpio write 23 1
> else
>     gpio write 23 0
> fi
>
> Save it
>
> Make the script executable
>
> chmod 750 check_fan
>
> Edit /etc/asterisk/rpt.conf
>
> in the [eventsxxxxx] section add
>
> /etc/asterisk/check_fan 1 = s|t|RPT_TXKEYED
>
> Make sure in the node section you have
>
> events=eventsxxxxx
>
> The xxxxx is your node number
>
> Restart Asterisk
>
> astres.sh
>
> Use  gpio readall   to test.  Example
>
> unkeyed  - 23 shows 0
>
> gpio readall
>
>    5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |
>   |
>  |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  |
> 12  |
>  |  13 |  23 | GPIO.23 |  OUT | 0 | 33 || 34 |   |      | 0v      |     |
>     |
>  |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  |
> 16  |
>  |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  |
> 20  |
>  |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  |
> 21  |
>
>  +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
>  | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi |
> BCM |
>  +-----+-----+---------+------+---+---Pi
> 3---+---+------+---------+-----+-----+
>
> Keyed
>
> |     |     |      0v |      |   | 25 || 26 | 1 | IN   | CE1     | 11  | 7
>   |
>  |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  |
> 1   |
>  |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |
>     |
>  |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  |
> 12  |
>  |  13 |  23 | GPIO.23 |  OUT | 1 | 33 || 34 |   |      | 0v      |     |
>     |
>  |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  |
> 16  |
>  |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  |
> 20  |
>  |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  |
> 21  |
>
>  +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
>  | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi |
> BCM |
>  +-----+-----+---------+------+---+---Pi
> 3---+---+------+---------+-----+-----+
>
> 23 shows 1
>
> Then use bit 23 (or the bit you choose) to run the relay.  Remember these
> bits are 3V high and 0 low and low current. You need to have a relay or
> solid state relay that works with that.
>
> *73 Doug, WA3DSP*
> *http://wa3dsp.org <http://wa3dsp.org>*
>
>
>
> On Tue, Apr 28, 2020 at 12:06 PM "Ron Gilson via ARM-allstar" <
> arm-allstar at hamvoip.org> wrote:
>
>> The script you wrote 10/2018.  I copied and paste hopefully not making any
>> goofs ?  If this is not practical I can use a thermostat on the heat sink?
>> Thanks for all your help.  Ron
>>
>>
>> On Mon, Apr 27, 2020 at 9:22 PM "Doug Crompton via ARM-allstar" <
>> arm-allstar at hamvoip.org> wrote:
>>
>> > Ron,
>> >
>> >   What info are you using for this? What script?
>> >
>> > *73 Doug, WA3DSP*
>> > *http://wa3dsp.org <http://wa3dsp.org>*
>> >
>> >
>> > On Mon, Apr 27, 2020 at 8:14 PM "Ron Gilson via ARM-allstar" <
>> > arm-allstar at hamvoip.org> wrote:
>> >
>> > > Recently I built a suitcase repeater.  Since this is a battery
>> operated
>> > > repeater and power is limited, I decided to use the fan script.  After
>> > > adding the fan_control.sh in the /etc/asterisk/local and adding
>> > > local/fan_control.sh to rc.local along with the 3 lines to events I
>> did a
>> > > reboot but pin 33 bit 23 does not change after a ptt???  Have I missed
>> > > something ?  Thanks
>> > > Ron  WA2WWK
>> > > _______________________________________________
>> > >
>> > > ARM-allstar mailing list
>> > > ARM-allstar at hamvoip.org
>> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>> > >
>> > > Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>> > >
>> > _______________________________________________
>> >
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>> >
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>> >
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>>
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>>
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>>
>