A perfect companion for your modded Turnigy 9X transmitter is the FrSky RC system with telemetry. FrSky system supports sending telemetry data back to the transmitter module from the actual model you are flying. By default the D8R-II plus receiver supports two ADC ports (A1 and A2) and a 9600bps serial connection (through which you can send pretty much anything). The A1 port is pre-configured to include a 1:4 voltage […]