Unit Relay is a relay unit capable of controlling the on/off state of circuits at levels of DC 3A / 30V or AC 3A / 220V. It essentially functions as an automatic switch that uses a small current to control a larger current. Therefore, it plays a role in automatic regulation, safety protection, and circuit switching in electrical circuits. The unit provides three pins: ON, OFF, and COM. By programming the GPIO to output high or low levels, the common terminal COM can be connected to either ON or OFF.
Features
Single bus control
Supports up to DC/3A-30V or AC/3A-220V
Development platforms: Arduino, UIFlow (Blockly, Python)
2 x LEGO-compatible holes
Includes
1 x Unit Relay
1 x HY2.0-4P Grove cable (20cm)
1 x 3.96 terminal
Applications
Remote control of high-power appliances such as refrigerators, air conditioners, TVs, etc.
