[arm-allstar] HamVoIP I/O support - What is Best Current Practice for implementing I/O?

Tue Jan 16 22:40:45 EST 2018

Also one last thing. Run this script manually so you can see what is going
on.

./bdc_control_usb.sh x    - where x is channel between 1 and 16.

It will print to the screen the BCD outputs and USB GPIO bits being set.
You can then check those bits with a meter. The will read around +3V high
(1) and 0V low (0).

*73 Doug*

*WA3DSP*

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

On Tue, Jan 16, 2018 at 10:22 PM, "Lloyd Duck via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Thank you Doug, I’ll get in installed tomorrow.
>
>
> Lloyd Duck, W5LND
>
> On Jan 16, 2018, at 9:13 PM, Doug Crompton <wa3dsp at gmail.com> wrote:
>
> Lloyd,
>
> OK attached is the modified script to use the USB FOB for control. You now
> have the option of Pi GPIO using the bcd_control.sh script or the FOB using
> bcd_control_usb.sh  script.  I am attaching the later.
>
> Here is a sample of the output -
>
> ./bcd_control_usb.sh 1
> Entered Channel 1
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO1=1"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO2=0"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO4=0"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO5=0"
>
> ./bcd_control_usb.sh 5
> Entered Channel 5
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO1=1"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO2=0"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO4=1"
> Executing - /bin/asterisk -rx "rpt cmd  cop 61 GPIO5=0"
>
> Note - you MUST initialize these bits in /etc/asterisk/simpleusb.conf
> like this in the stanza for the USB you are using and restart or reboot -
>
> gpio1=out0 ; in, out0 or out1
> gpio2=out0
> gpio4=out0
> gpio5=out0
>
> See the DMK-URI or whatever CM119x FOB you are using for bit pin outs.
>
> This is then sent to Asterisk to perform the action. I have tested that
> this does control the bits but not as a package so you need to test. Once
> this is proven I will probably put both of these scripts out as a general
> update for all and also do a howto on it.
>
> Please get back to me with how you make out.
>
> 73 Doug
> WA3DSP
> http://www.crompton.com/hamradio
>
>
> > On Tue, Jan 16, 2018 at 8:28 PM, Lloyd Duck <lduck at me.com> wrote:
> > Oh ok that’s why it’s now changing the USB FOB bits. Thank you..
> >
> >
> >
> > Yes the FOB I’m using is a CM119.
> >
> >
> >
> > Do you have any guidance how to modify the script to control the FOB I/O
> bits? I’m lost on that step.
> >
> >
> >
> >
> >
> > Lloyd Duck
> >
> > W5LND
> >
> >
> >
> > From: Doug Crompton [mailto:wa3dsp at gmail.com]
> > Sent: Tuesday, January 16, 2018 7:09 PM
> > To: Lloyd Duck <lduck at me.com>
> > Subject: Re: [arm-allstar] HamVoIP I/O support - What is Best Current
> Practice for implementing I/O?
> >
> >
> >
> > This script changes the Pi GPIO bits NOT the USB FOB bits. The bits and
> pin numbers on the Pi GPIO are shown. The GPIO readall is a visual monitor
> of those bits. The Pi bits chosen are the recommended ones to use but that
> can be changed in the script.  If you want to control the FOB I/O bits
> first of all you need a CM119x FOB chip as the CM108 does not have enough
> bits. You also need to modify the script to control the FOB I/O bits and
> not the Pi I/O bits. Either would work. The Pi GPIO might be more reliable
> and more transportable as if the FOB was changed out it would have to be
> both a CM119x and have the bits brought out.
> >
> >
> >
> > 73 Doug
> >
> > WA3DSP
> >
> > http://www.crompton.com/hamradio
> >
> >
> >
> >
> >
> > On Tue, Jan 16, 2018 at 7:37 PM, Lloyd Duck <lduck at me.com> wrote:
> >
> > Doug,
> >
> > I wasn’t able to get your script to work, any idea what I may be doing
> work?
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > From: arm-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf Of
> "Doug Crompton via arm-allstar"
> > Sent: Friday, January 12, 2018 11:50 AM
> > To: ARM Allstar <arm-allstar at hamvoip.org>
> > Cc: Doug Crompton <wa3dsp at gmail.com>
> > Subject: Re: [arm-allstar] HamVoIP I/O support - What is Best Current
> Practice for implementing I/O?
> >
> >
> >
> > Randy,
> >
> >
> >
> >  Attached is the bcd_control.sh script. It controls 16 channels or 4
> bits. It has a strobe on a 5th bit that can be ignore if not needed. Here
> is and example running it at the linux prompt -
> >
> >
> >
> > ./bcd_control.sh 2
> > Entered Channel 2
> > Channel 2 written to BCD - 0010
> >
> >
> >
> > and just a portion of a 'gpio readall' showing the bits
> >
> >
> >
> >  |   5 |  21 | GPIO.21 |  OUT | 0 | 29
> >  |   6 |  22 | GPIO.22 |  OUT | 1 | 31
> >  |  13|  23 | GPIO.23 |  OUT | 0 | 33
> >  |  19|  24 | GPIO.24 |  OUT | 0 | 35
> >  |  26|  25 | GPIO.25 |  OUT | 0 | 37
> >
> >
> >
> > To control from Allstar here is one way to do it. Add to the functions
> stanza, assumes the script is in /etc/asterisk/local. Make sure the script
> is executable - chmod 750 bcd_control.sh. Run it manually as above to
> confirm. You only need to enter functions for as many channels as you have.
> In your case 3 bits or 8 channels. The script was not written for a
> Motorola but it should work fine.
> >
> >
> >
> > 801=cmd,/etc/asterisk/local/bcd_control.sh 1
> >
> > 802=cmd,/etc/asterisk/local/bcd_control.sh 2
> >
> > 803=cmd,/etc/asterisk/local/bcd_control.sh 3
> > 804=cmd,/etc/asterisk/local/bcd_control.sh 4
> >
> > 805=cmd,/etc/asterisk/local/bcd_control.sh 5
> > 806=cmd,/etc/asterisk/local/bcd_control.sh 6
> > 807=cmd,/etc/asterisk/local/bcd_control.sh 7
> > 808=cmd,/etc/asterisk/local/bcd_control.sh 8
> >
> > 809=cmd,/etc/asterisk/local/bcd_control.sh 9
> > 810=cmd,/etc/asterisk/local/bcd_control.sh 10
> > 811=cmd,/etc/asterisk/local/bcd_control.sh 11
> > 812=cmd,/etc/asterisk/local/bcd_control.sh 12
> >
> >
> >
> > etc....
> >
> >
> >
> > Another way to do this is use the autopatch in command mode. Then you
> just need one line in rpt.conf  and a custom extensions.conf stanza. See
> the howto on the hamvoip.org web page.
> >
> >
> >
> > https://www.hamvoip.org/Allstar_extended_functions_using_autopatch.pdf
> >
> >
> >
> > Again - VERY IMPORTANT! The Pi is 3V GPIO logic. Use diodes pointed
> towards the radio on each line. You may possibly need to use pullups on the
> radio side of the diode if the radio does not supply them. The radio lines
> probably float high. If they do that won't be necessary.. You also need a
> ground connection between the radio and the Pi. This could be Pi pin 37 or
> any defined 0V pin.
> >
> >
> >
> > 73 Doug
> >
> > WA3DSP
> >
> > http://www.crompton.com/hamradio
> >
> >
> >
> >
> >
> >
> >
> > On Fri, Jan 12, 2018 at 2:53 AM, "Randy Neals via arm-allstar" <
> arm-allstar at hamvoip.org> wrote:
> >
> > Hi,
> >
> > What is the best current practice for implementing I/O on a Raspberry Pi
> to
> > control external things.
> > In this case, remote channel selection on a VHF remote base, a radio
> with 8
> > channels and having external control lines.
> >
> > From looking through the list archives, I see references to using an
> > Arduino Nano, and at an earlier time, using a USB I/O board from
> SparkFun,
> > and of course using the lines on the RPi itself.
> >
> > Anticipated questions...
> >
> > Q. What Am I trying To Do?
> > A. Control channel select lines on a VHF remote base station.
> >
> > Q. What format/How many lines?
> > A. 3 logic control lines. The lines are normally pulled up to +5V by the
> > radio.
> >      BCD format with the lines having binary weighting of 4, 2, and 1
> > respectively.
> >      High = weighted value / Low = zero value.
> >
> > Q. What audio interface will I use?
> > A. Simple USB, likely DMK URI. (But I could use a USB FOB, or other
> > interface if there is one with I/O)
> >
> > Thanks,
> > Randy
> > W3RWN
> > _______________________________________________
> >
> > 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
> >
> >
> >
> >
> >
>
> <bcd_control_usb.sh>
> _______________________________________________
>
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>
> Visit the BBB and RPi2/3 web page - http://hamvoip.org