Arduino projects to send and receive RF signals at 433 Mhz. Decodes the same protocol that uses the Nexa.
Velleman TX433N https://www.electrokit.com/rx433n-mottagarmodul-433-9-mhz.45095
velleman RX433N https://www.electrokit.com/tx433n-sandarmodul-433-9-mhz.45094
You can also use 433MHz RF transmitter and receiver link kit mät.se of which is cheaper.
Control a Nexa PB-3.
Code to read the remote control from Nexa:
(AM-HRR3 receiver test)
To send to Nexa-breaker:
Adding the code goes here if the other links fail: