Well this is frustrating.

Got the -Pi connected to the radio, but it doesn't seem to listen.

I have another radio that tries to connect to it, and replies, but the RX light never turns on and nothing is seen in the axlisten logs :(

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Looks like the pin marked RXD was not, in fact, Received Data.

I have added a wire which does now connect from the speaker to the mic socket, and removed the internal speaker in the process.

Now I have an orange light!

And I have received the messages typed on the other radio computer combo to this new radio computer combo!

Nothing received on the remote end though 😔

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