[arm-allstar] Multiple-Use R-Pi/Allstar?

[Doug Crompton]

John,

  There are several ways to do this. The Pi GPIO could be used in
conjunction with the gpio control software that is part of the hamvoip
distribution. See the GPIO howto on the hamvoip website. You would need to
build up some interface to drive your relays. The Pi is 3V logic.

There is also a howto on using USB and a board from Adafruit to get many
I/O bits. This is shown with a 8 relay board in a howto. The parts are very
inexpensive.

A third way would be to use the USB FOB GPIO. You would probbly need a
CM119 chip in the FOB which supplies 8 bits, seven of which can be used.

I would probably opt for the first or second choice above. The relay boards
are readily available on Ebay - links in the howto - and could be used for
any of the options.

If you need more info let me know.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Tue, Mar 13, 2018 at 1:43 PM, "John via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Is it possible/practical to use the Raspberry Pi portion of my Allstar
> node for remote control of other devices such as multiple relays?
>
> Specifically, I’d like to use:
>
> https://remoteqth.com/remoteqth-server.php
>
> To control
>
> http://www.keyestudio.com/keyestudio-rpi-4-channel-relay-shield.html
>
> I only wish to control the 4 relays using the remoteQTH program - no
> additional audio paths or devices. But, I’d like the Allstar node to remain
> operational while doing so.
>
> I’ve seen and read the options available on the HamVOIP site, but I
> already have the 4 relay shield (indicated above). I originally intended to
> use a separate R-Pi for control, but since my Allstar node is
> underutilized, I just thought I’d ask about the feasibility of doubling up
> uses for one Pi.
>
> Thanks for any guidance.
>
> John
> WB5NFC
>
> Sent from my iPhone
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