ACS712ELC Hall Current Sensor is an integrated circuit designed to measure both AC (alternating current) and DC (direct current) currents. It operates based on the Hall effect, which is a phenomenon where a voltage is generated when a current-carrying conductor is placed in a magnetic field.
Pin 5V power supply, on-board power indicator
When the current is not detected, the output voltage is VCC / 2
PCB board size: 27.4 (mm) x11.8 (mm)