timer controler for an heater with the electric pilot wire.

The idea is:
circuit in idle mode: send half negative wave in the heater wire (frozen mode).
when the circuit is counting, send no signal to the wire (heating mode).

Wire controller mode:http://bernard.lefrancois.free.fr/pilote.htm
https://telefab.fr/2013/11/10/controle-a-distance-des-radiateurs/

#timer #electronic #ne555 #CD4017 #MOC3041 #kicad