PTT to GPIO pin on Pi? (request not an issue)

[neil969]

I wonder if it is possible to bring the PTT function to a GPIO pin ( or simmilar) on the Raspberry pi?
I have this half-baked idea in my head to put a Pi3 "model A+" into a 3d printed case with a USB soundcard (and possibly A cellular modem) and a PTT switch to make a "network M17" hand held. A bringing the PTT to the hardware is well beyond me :) - "push on - push off" may be a pain , but better than nothing though.
I have found Mvoice works quite well on the Pi2 A+.
Great project BTW. :)
M0KNC

[n7tae]

I'm not much of a hardware guy, but I think I could read a GPIO push button easily enough. But this idea needs to be fleshed out a bit more. Are you talking about a system without a keyboard? Then mvoice would have to be configured before launching and automatically linked to some specific reflector. There is some straightforward, but not insignificant development work there.

Also, are you talking about a system without a display? Or a special display that need custom support? A headless system could benefit from at least a second button to initiate shutdown and maybe some voice prompts to let you know your link state.

[neil969]

Cool!!
The pi would be run "headless" so It would talk to it via VNC to set it up and set a reflector etc.. ( at least in the first instance ..)
I would prob look at adding a touch display later, but it would eat a lot of power to do that :)
So , really I would just need to have it read a switch for PTT for now, as I said it is still a half baked idea LOL!

[turbo2ltr]

If you are going to add PTT to GPIO, then might as well also add a COR output, then it could be used to get an existing analog repeater onto M17.

[jdmaag]

Where can I find a image file for my Pi so I can use M17

[n7tae]

You're looking for a Linux OS image with mvoice already installed? I am not aware of any image file currently available that has mvoice. You have to build it yourself. The steps to do so are explained in the README.md file.

Andy Stewart, KB1OIQ, recently contacted me about adding mvoice to his Andy's Ham Radio Linux Xubuntu image, but I don't know ff mvoice will make it into his next release or not.

[jdmaag]

Thank you tom for the info. I would but have no Idea how to do it and where to start and with what. I would be willing to pay someone to do it for me. John

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On Wed, Apr 12, 2023 at 8:50 PM Tom Early ***@***.***> wrote: You're looking for a Linux OS image with mvoice already installed? I am not aware of any image file currently available that has mvoice. You have to build it yourself. The steps to do so are explained in the README.md file. Andy Stewart, KB1OIQ, recently contacted me about adding mvoice to his Andy's Ham Radio Linux <https://sourceforge.net/projects/kb1oiq-andysham/> Xubuntu image, but I don't know ff mvoice will make it into his next release or not. — Reply to this email directly, view it on GitHub <#8 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALQYFN2P2ZEAIEYYU2ZH5KTXA5EVFANCNFSM4YY5XGLQ> . You are receiving this because you commented.Message ID: ***@***.***>