Today I've tried to do the same thing but using 3 potentiometer; it seems to work but the receiver it's not refreshing so the leg RGB doesn't change :( However, it's interesting that when the receiver arduino begins or when restarted, it refreshes. Another thing is that if the antennas are touching each other it works. I think it is not a problem of the transmitter because it works from more than 5 meters away when the receiver is restarted. I might have forgotten something on the receiver code or even i don't know. I'll look for another methods.

I have some hypothesis about the problem:

1. The receiver code has a logic mistake.
2. There is noise between the unit.
3. This method is not proper.

Receiver:

Diagram:

Code: https://github.com/LukeCepza/433-Mhz-rf/tree/master/Transmisor AM 433Mhz/RF_transmiter_4pot_longchain

Transmitter:

Diagram:

Code: https://github.com/LukeCepza/433-Mhz-rf/tree/master/Transmisor AM 433Mhz/RF_receiver_4pot_longchain