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433MHz Relay Control - Receiver
17/10/2020 | Views: 12090 | Arduino | by: ELECTRONOOBS      

Below you have the scheamtic for the receiver. Since the solid state relay module on the PCB is too big, I had to take it out from the PCB and solder the circuit on a small PCB so it could fit inside the case. You have the circuit below with a NPN transistor and a few resistors. Connect 220VAC to the converter and the 12VDC output connect it to the RAW pin of the Arduino Pro Mini. Connect pin D2 to the relay circuit. Connect D11 to the radio receiver. Share GND with the entire ciruit.

Homemade 433MHz radio receiver relay

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