Wireless Arduino Multi Zone Controller Relay with nRF24L01: If your house have Multi Zone Heating then you can control each zone heating independently with raspberry pi and this will save you lot on your heating cost considering that you don’t have to heat all the house all the time. For this purpose you need to build wireless relay switch as Multi Zone Controller so we can open and close zone valve to circulate water in each zone as needed.

PiHome comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. DO NOT MAKE ANY CHANGES TO YOUR HEATING SYSTEM UNTIL UNLESS YOU KNOW WHAT YOU ARE DOING, contents provided here are for information and education purpose only, I take no responsibility for any loss or damage to you or your property.”

Wireless Arduino Multi Zoned Controller Relay with nRF24L01 wiring diagram

Wireless Arduino Multi Zone Controller Relay with nRF24L01

Wireless Arduino Multi Zone Controller Relay with nRF24L01

Make sure you power Relay board with 5v power supply. I suggest to used Arduino Mini Pro/Nano 5v version and have power supply connected to relay board as well. this will save you to have some step-down regulator for arduino.

Wireless Arduino Multi Zone Controller Relay with nRF24L01 PBC and Schematic

If you want to have neat and one pcb solution then you can get following pcb made and connect eve thing as per instcutures

 

"<yoastmark

"<yoastmark

MySensors Multi Zone Controller Relay – Sketch

For Boiler relay controller it is same pin connection apart from you only need one connection to relay, for boiler check this link