How to receive data from Arduino to Orange Cube+

I decided to adding temperature sensor to my system. I will measure the temperature of engine and I’ll add a function that provide changing mode to RTL depend on the temperature. I’ll use an arduino to measure but I couldn’t figure out how to receive data with orange cube. Which files should I change? I can replace the parameters with an unused parameter instead of adding a new one.

You need to use a lua script to receive, decode and inject that data into the AP_ESC_telemetry datastructure where it belongs.