Hi everyone,
I made a little protocol that can be used to speak between an arduino and a raspberry pi with juste one transmitter (Arduino) and one receiver(Rpi).
You can find it here : GitHub - lucbu/Transmission433RF-RpiArduino: Send data from an Arduino to a Raspberry PI using 433MHz transmitter/receiver.
It use an ID, a packet numerotation and a parity bit.
Cheers.
Lucbu.