online Tutorial:KS0186
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ACS712-20A Current Sensor is used to measure the intensity of current. It contains ACS712ELC-20A chip, based on Hall Effect. You should protect it from influence of magnetic field when using it.
Parameters:
Chip:ACS712ELC-20A
5V Power Supply and Power Indicator On-board
This module can detect 20A positive and negative current,corresponding analog output at 100mV/A.
Output voltage is VCC/2 without current flowing.