This 4 Channel Relay Shield is an easy way to control high voltage applications with the Arduino. The maximum switching power for each relay is 70W. You can directly control this shield with the Arduino digital I/Os with an external 9V DC supply.
This 4 Channel Relay Shield is an easy way to control high voltage applications with the Arduino. The maximum switching power for each relay is 70W. You can directly control this shield with the Arduino digital I/Os with an external 9V DC supply.
