Good day all,
I picked up a pair of these sensors some time ago to measure the current draw of my solar setup.
It’s a 0-100Amp DC Hall effect sensor which should output 4-20mA on the output line.
- 0V to GND
- 5v to 5v
- A 50 ohm pull up between 5V and output
- Output to A0 on the Arduino
- The positive “load” cable through the sensor
When I take a reading from A0 using “AnalogReadSerial” I constantly see 984~ there abouts. It doesn’t matter which way around the Hall sensor goes the reading doesn’t change.
To make sure I’m drawing load correctly, I also have an invasive current & voltage sensor (the kind used for hobby remote control cars). I’ve tried varying the load I pull from 1Amp up to 20Amp but no dice.
Does anyone have any hints to get this working?