Why is the output of ACS712 current measurement module unchanged?



  • Why is the output of [ACS712](dee940ca-34bd-42c3-b68d-c288c88b4412-image.png link url) current measurement module unchanged? I connected 5.0V to VCC, and the output is always 2.56V. After connecting the current of 2-5A in series, the output has not changed. I use an AC power supply, and I directly use an AC voltage regulator to connect the thermal, serial current. Does anyone know the reason?



  • I think you need to post a clear drawing or photos of the setup and the code you are using.

    I donlt know what you mean by "connecting the current in series" nor what "AC regulator" you are using or what "thermal serial currenr" is.


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