Description
A3144 Hall Sensor (Magnetic Field Sensor)
Operating Voltage: 4.5V to 24V
Max Current Draw: 10mA
Note that this is a digital sensor, in that it can only detect the presence of a magnetic field but is unable to measure the strength of it
Datasheet: https://www.elecrow.com/download/A3141-2-3-4-Datasheet.pdf
Hookup Guide:
https://www.hackster.io/amal-ns/hall-effect-sensor-with-arduino-390916
https://engineersportal.com/blog/2018/10/3/arduino-tachometer-using-a-hall-effect-sensor-to-measure-rotations-from-a-fan
