ACS712 20A
1, the current sensor chip ACS712ELC – 20
2, pin 5 v power supply, the onboard power light
3 30A plus or minus current can be measured, module,
the corresponding analog output 100 mv/A
4, no current through testing, the output voltage is VCC / 2
5, the size of the PCB board: 31 (mm) x13 (mm)
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