Transceiver CAT remote control

[VK3ZYZ]

One thing I want to add to the ESP32 VFO, and the Codan is CAT remote control over the internet so my sets can be driven from the comfort of inside the house, not the cold shed.
Here is a post about a simple audio I/O, in this case, packet radio.

Project | ESP32 TNC and Audio Relay for HF/VHF Packet Radio | Hackaday.io

hackaday.io

Some demo code here... https://github.com/rkinnett/ESP32-2-Way-Audio-Relay
This may be a good starting place. Any help is appreciated, as this is way above my pay grade

 

[VK3YNV]

Hi Denys,

That's a great project. I like the idea that the ESP32 could be used to stream audio in and out over wifi, I was thinking that asterisk running on a rpi would be the way to go for remote control.

Separating the CAT control from the Remote Control.

CAT control on most tranceivers is usually done with analog audio in/out via a USB audio interface and normal serial I/O commands for tuning and ptt etc. That's all that's needed to run FT8 or WSPR modes. Some radios like the IC7300 and others have the USB audio interface built in and you select it when setting up for CAT control.

Running remote control across the wifi network is more like ROIP ( Radio Over Internet Protocol ) same as VOIP but with extensions for COS and PTT. Like KiwiSDR etc. In fact it might be worthwhile to have a look at how KiwiSDR is implemented.

I'll do some research and lets see where it goes.

He did a pretty good job working out how to decode FSK in software to run AX25 packet.