[arm-allstar] Help Radio to GPIO Channel Select

Sun Jul 30 22:06:54 EST 2017

Fantastic. Is the script exclusively for pi2, or will a BBB also work?

On Sun, Jul 30, 2017 at 6:22 PM "Doug Crompton via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Sam,
>
>  The bcd_control script does hold the lines in the prescribed state.
> Decimal 1 = 1000 , Decimal 16 = 1111, etc.  The strobe bit is a separate
> bit that goes high or low for the strobe period. As I said you can ignore
> it or comment out those lines. The data lines hold to what ever you set
> them to. Try it as I described and you will see from the gpio readall.
>
>
> *73 Doug*
>
> *WA3DSP*
>
> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>
>
> On Sun, Jul 30, 2017 at 9:00 PM, "Sam Skolfield via arm-allstar" <
> arm-allstar at hamvoip.org> wrote:
>
> > Rad! I was actually about to ask you about doing this too!
> >
> > My friend has a CDM and a beaglebone and he wants me to set him up a
> little
> > node that behaves like a remote base. He wants something where he can
> dial
> > up his node on his IAX client, and change channels with macros. He'll be
> > using a CDM with 15 channels via 4 lines.
> >
> > With the CDMs, the lines are grounded and held to ground for channel
> > select. They recognize transitions, not pulses. Could yourcode be tweaked
> > for this? The CDM/ Radius/GM300 is a very popular node radio as you know,
> > and I'm sure many people would love to have such a script available!
> >
> > Thanks
> > -SS
> >
> >
> > On Sun, Jul 30, 2017 at 3:50 PM "Doug Crompton via arm-allstar" <
> > arm-allstar at hamvoip.org> wrote:
> >
> > > Bobby,
> > >
> > >  Attached is a bash script I wrote some time ago to write the GPIO with
> > BCD
> > > data given decimal data input. The bits selected are 21, 22, 23, 24.
> Give
> > > it a try. The format is:
> > >
> > > bcd_control.sh <channel 1-16>  ....  Just the channel number No
> brackets.
> > >
> > > Also remember to execute a script it must be executable - if it is not
> > do -
> > > chmod 750 bcd_control.sh    and if executing it in the current
> directory
> > do
> > > - ./bcd_control.sh
> > >
> > > After you execute it will tell you what it did. Then at the Linux
> prompt
> > > type:
> > >
> > > gpio readall
> > >
> > > You will get a chart of the I/O bits. Bits 21, 22, 23, 24 will show the
> > BCD
> > > representation of the decimal channel you entered.
> > >
> > > This also includes a strobe bit because the system I was writing it for
> > > required that. You can ignore it if you don't need it. It is bit 25 for
> > > 100ms.
> > >
> > > You can see how this could be implemented as DTMF functions or better
> yet
> > > using the autopatch through extensions.conf. See the howto on that on
> the
> > > hamvoip.org web page. Also the howto on GPIO.
> > >
> > > Using the autopatch method a DTMF like *6201  through *6216  could
> change
> > > the 16 channels.
> > >
> > > Any yes this could be done in supermon but first you need to understand
> > > this part of it and get it working. You need to interface those 4 bits
> to
> > > the radio and manually execute this command.
> > >
> > > Here is a link from this forum January 2016 about this -
> > >
> > >
> http://lists.hamvoip.org/pipermail/arm-allstar/2016-January/002637.html
> > >
> > >
> > > *73 Doug*
> > >
> > > *WA3DSP*
> > >
> > > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
> > >
> > >
> > > On Sun, Jul 30, 2017 at 1:27 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
> > > > _______________________________________________
> > > >
> > > > 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 web page - http://hamvoip.org
> > > _______________________________________________
> > >
> > > 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 web page - http://hamvoip.org
> > >
> > --
> > KJ6QFS
> > Sam Skolfield
> > _______________________________________________
> >
> > 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 web page - http://hamvoip.org
> >
> >
> _______________________________________________
>
> 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 web page - http://hamvoip.org
>
-- 
KJ6QFS
Sam Skolfield