To control various heating/ventilation systems I am looking for a relay board with 2-4 relays.
Must:
- Connect via Ethernet
- Work with HA and Zigbee2MQTT
- Switching 230V for small fans, Radiator actuator drive
Nice to have:
- As power-efficient as possible, this board will run 24/7 and I maybe there are different relais types that do or don‘t permanently User Power but only when switching?
- Ideally PoE
- Ideally also WiFi with WPA3
- Ideally the board is available with 2/4/8/16 relays
So I came across this board, is this a good or bad idea?