Gravity: Easy Relay Module

Traditional relay modules have complicated wiring, unfriendly to beginners. The module simplifies wiring, with an input adapter compatible with most power sources (battery boxes, DC supplies, power banks), retaining NC/NO functions switchable via toggle. DFRobot's latest easy relay module uses a Gravity interface, supports 3.3V-5.5V, connects easily to Arduino/main control boards, suitable for robot control, light control, smart home, security, etc.