[arm-allstar] Channel Controll using GPIO on PI3

[Doug Crompton]

Bobby,

 What you want to do can certainly be done. 4 or 5 bits of I/O can be
programmed using the GPIO command (see the GPIO howto) to control the
channels. Then a simple GPIO out statement would change to a different
channel.

The problem here is it will require some script programming to do that.
Drop down menus is again another level. I would vi for a DTMF command to
change channels which could certainly be done. If you don't know bash or
some scripting language it will be tough. I could certainly do it but I
really don't have time right now. Perhaps someone else would volunteer. If
you want to take it on yourself I could point you in the direction to go.
First you need to get the hardware interfaced and test it with the GPIO
command. The radio I believe is BCD four bit and a strobe programming and
if that is the case I have already written some code for someone else to do
that. No drop down menus though!

Remember the Pi GPIO is 3 volts. Applying 5 volts to any GPIO pin will
destroy it.


*73 Doug*

*WA3DSP*

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



On Sun, Jul 30, 2017 at 12:37 PM, "Bobby Bruton via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> I need some assistance, I have a challenge, I have a dual node setup
> running Comptons's latest release in a Pi3.Using Motorola CDM commercial
> Radios with URI interfaces, everything is running fine, but I want to use
> the channel controll built into the AUX pin assignment in the radio that
> part I have no problem assigning the pins in the radio,you can only do 4
> channels per radio in channel select aux io pin assignment which is
> fine.Let me get to the piont.I have 2 Radios, I wanna be able to go to
> Supermon have a drop down menu that will let me use the GPIO to select
> channels on the radios,independently, which will give me a latchd hi or
> latched open output. example of DROP DOWN in supermon would look similar to
> this
> VHFCH1 on or off CH2 on or offCh3 on or offCh4 on or off
> UHFCh1 on or offCh2 on or offCH3 on or offCh4 on or off
>
> and if possable to change the name of CH to say, like ex,  My Repeater on
> or off
>                        Johns Repeater on or off
>                                                                  ETC
> "I am not good with command line so this will have to be eather a file I
> can copy and paste to a directory or directory's
> or written as a how to guide for dummies. step by step line by line"
> Many thanks Hope you guys are up to the challange 73's BobAG5BB
>
>
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