Things get more complex here!!
From 3DR SiK Telemetry Radio website, we can see that the integration has to be made via DF13 six-position port… I have a DF13 six-position cable, but I am not sure what are the pins RTS and CTS for.
I am planning to use only the +5V, Ground, Rx and Tx transceiver pins…
To power the module, I will connect transceiver pin 1 (+5V) on Arduino pin 5V and transceiver pin 6 (Ground) on Arduino pin GND.
For the communication, I will connect Rx from the transceiver (transceiver pin 2) on Tx from Arduino (Arduino pin 1) and Tx from the transceiver (transceiver pin 3) on Rx from Arduino (Arduino pin 0).
Transceiver pins 4 and 5 (CTS and RTS) will be floating… will have no connection.
What do you guys think??