Open oe9fwv opened 7 months ago
Yeah, that is a known issue. There is currently little work in aprsdroid to implement a PTT mechanism (such as COM or CM108). See this issue here: https://github.com/ge0rg/aprsdroid/issues/324
There is a pre-release AIOC firmware available, that implements Virtual PTT (a version of VOX). See this issue for more information: https://github.com/skuep/AIOC/issues/19
I have my CM108 now and have confirmed that the PTT control via RTS is working from Android and I'm hoping to help get this added as part of ge0rg/aprsdroid#324. The current implementation from that ticket does not yet seem to support this specific chip, but other libraries do seem to work with it.
I tried my Anytone 878 with Aprsdroid. Receive and transmit is working when I use an OTG cable and press the PTT when I want to transmit a beacon. (Caveat: RF power should be kept low to avoid PTT locking) The problem is that VOX does not work when the input is from the mic connector and not from the built in microphone. The only comfortable way to transmit would be a DATA vox function in the AIOC, if Aprsdroid does not provide a PTT function in the future.