This is ready breakout board with eight (8) 5V activated relays, with 3 screw terminals for each relay (NO, NC, COM) and screw terminals for control signal from microcontroller such as Arduino. This is the universal Relay breakout board that I like. In simple words, each relay can be configured as 5V(High) activation or 0V(Low) activation. ![]() Extra isolation with opto-coupler at the front end of control, and the activation logic for each channel is configureable via mini jumper. It comes with 8 channels of 5V activation relay, ready to control 250VAC at 10A.
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