Hi all,
I’d like testing some cheap hardware from aliepress.
The goal is controlling lights (so switch and relay) by wall switch and from HA (I don’t want wifi connections).
I found this from aliexpress:
I can put this board in main electrical cabinet.
PROS:
The logic is inside the board:
CONS:
-each swich must be wired directly to the cabinet
-I need another wire to connect the led feedback on the switch
Or this solution:
PROS:
-connection by 485 bus, so I can put some little devices with DI/DO inside the wall (behind the switch). and the relay module inside the main electrical cabinet
CONS:
-where is the logic? I need a PLC?
-translation to MQTT needed to talk with HA…
Any suggestion?