RELAY Click™ board features two G6D1AASI-5DC power PCB relay modules as well as two screw terminals. It communicates with target microcontroller via mikroBUS™ PWM (RL1) and CS (RL2) pins. LED diode (Green) indicates the presence of power supply. Control up to 5A, 250V AC/30V DC loads. The board is designed to use 5V power supply only, but communication lines voltage level can be in range between 1.8V and 5V. On-board transistors are used to drive relays by current sinking.