Hello everyone! I’m required to do current monitoring by connecting ACS712 to the Arduino that is similar to the attached file. I’ve used an AC supply as the source connecting to the ACS712(current sensor) and to the Arduino Yun.
I realised the readings were same from the arduino in the PC whether I switch on/off the power supply. I’m wondering which part I’m doing is wrong? I’m only attempting to read the current from the input of the Arduino.
Also, do I need a load(light bulb) if I’m doing the monitoring? Because I do not have a load and the power supply goes directly to the ACS712.
Really appreciate with you guys can help/guide me, thank you!