It doesn't have to be remote controlled . All I see on the bay are 4 input max. If you see the source of such board a pointer would be appreciated
You could stack a pair of these;
https://czh-labs.com/products/elect...lay-module-board-operating-voltage-dc-12v-508
You can select via a rotary switch feeding 5v to the logic via a 1k resistor or remote control via an Arduino.
https://czh-labs.com/products/elect...lay-module-board-operating-voltage-dc-12v-508
You can select via a rotary switch feeding 5v to the logic via a 1k resistor or remote control via an Arduino.