Looks nice. ? I like your TX/RX/PTT panel under development.? Can you share when you are ready?
I too use multiple Raspberry Pis, all connected using an MQTT broker.? For many of the same reasons your site and for me, allows me to deploy the individual Pi, and its relays/sensor inputs, near the process, reducing the number and length of interconnecting cables.
I do all my development and experimenting on a "test" pi separate?from the Raspberry Pis running the station.
