DRAWS hat with ASL?

[kk6qms]

Hi-
I have a DRAWS hat with a Pi 4. I do not use it at all and would love to make an ASL node with it using the DRAWS hat for radio interface. Has anyone achieved this?
Clifford - KK6QMS

[NR9V]

There seems to be no info on their site as far as a schematic or parts details but 99% chance they are not using a CM1xx IC. There are some mentions on their forum of possibly doing AllStar using the ALSA driver. And there is a chan_alsa driver in the ASL code, but no references to it in rpt.conf or any other conf files other than modules.conf.

Some web searches turn up some additional info that looks promising:

Stupid asterisk tricks

All, For those of you who may want to play with the code I put up at https://github.com/KG7QIN/AllStarLink-Asterisk-1.8 but don't have a radio or anything else they want to /can spare at the moment, there is something else you can do: Setup your console to dial. Once you do this, you can do something like "console dial 42088" and have the audio of your node play on your computer speakers. You could probably even use it to talk, but I don't really recommend it unless you know what you are doi…

With a post name like that you know you’re off to a good start.
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GitHub - KR4DIO/chan_alsaradio: ALSA sound card driver for Allstar / Asterisk

This looks like a more full-featured driver.

Between the above 2 links there is probably enough info to get it working. May or may not be easy, but would be a fun experiment.

Has anyone used ALSA on ASL? Another interesting possibility it would open up is using the onboard audio chip on a RPi or Dell 3040 miniPC for example. Might enable a radioless node to be built with no URI needed. Though as CM fobs are only a few $ and provide some extra I/Os (PTT etc) it wouldn’t be a big cost or space savings.

[kk6qms]

Their groups.io account has some documentation/schematic linked below- but coding is not my forte’.
DRAWS.pages (groups.io)
Thanks for the info David. You make good points about the poor cost benefit of using a DRAWS for a basic ASL node. I just happen to have one I had intended for field ops but eventually came to feel a Win machine was a much better fit for me.