Description 1. Current sensor chip: ACS712ELCTR-05B, ACS712ELCTR-20A, ACS712ELCTR-30A; 2. Pin 5V power supply, onboard power indicator; 3. The module can measure plus or minus 5A/20A/30A current, corresponding to analog output 100mV/A ; 4. When no detection current passes, the output voltage is VCC/2; 5. PCB board size: 31(mm)x13(mm); Note: ACS712 is based on the principle of Hall detection, please try to avoid the influence of the magnetic field when using it!
