I’m building a custom cage TMS system, and I am utilizing a DC motor controlled drum. Almost everything is in place, my last obstacle is to find a way to reroute telemetry data to a second Raspberry Pi in the TMS, to control the tether drum with a PWM signal.
Has anyone tried anything like this before? I can’t seem to find anything like it on the forum. So my question is simple:
What’s the best way to intercept a PWM signal from the main telemetry, for use in a cage (secondary vehicle)?
My first guess would be to “clone” the incoming telemetry on the ROV’s RasPi, and reroute it to the Cage RasPi’s IP address. Is it possible to get a PWM signal directly from the RasPi’s pins built-in using ArduSub?, or do I need to use a flight controller in the cage as well? I’m hoping I can execute a custom python script on the cages Raspberry Pi when I press a button on my custom topside controller.
A rough diagram of the required telemetry:
Anyway, if anyone has any tips or experiences I would love to hear them.