Here's a basic layout of my concept. The left antenna is for my RC, the other 2 are for Telemetry units (RFD900s)
View attachment 9500
The RC Module is a DTFUHF 1W 433MHz Receiver, used as a transmitter. There is firmware available for this already. I just need to plug in either a PPM or SBUS stream.
Im not limited to this module though, I think I could possibly use a HC-12 module if I want to use 2.4GHz
My flight controller is a pixhawk, which can take the SBUS transmission, but I can choose whatever I like with the DTFUHF equipment.
My hardware is about 95% built. My whole case is done, and gimbals/pots/switches are installed. Im just putting my 3rd revision schematic and PCB together now using EasyEDA.com
Here's a link to my Project
The reason I prefer (and maybe im wrong) to set the LEDs based on the actual SBUS channel value is that the LEDs will tell me what the actual value is that's being sent, not just what I want it to be.