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Hall Effect switch is a high sensitivity hall-effect switch designed for high temperature operation - up to 150°C.The uni-polar switching characteristic makes these devices ideal for use with a simple bar or rod magnet.Chances are your sensor does not look like the one I used. Regardless, if your sensor is analog the code should work for yours as well, although your setup will be different. If your sensor has three pins on it I suggest trying out catch all sensor guides first. This sensor is used to detect magnetic fields. The current, and thus the voltage, running through the sensor is changed in relation to the presence of a magnetic field. This sensor is designed so it can tell you the amount the voltage has changed as an analog output, and if the voltage has changed as a digital output. Since the sensor can provide digital and analog outputs, there is a surprising amount you can do with it. You can easily make a working sensor, or make a much more complicated one. This sensor is built in such a way that the sensor itself has everything needed to operate, including an LED. The as such, you can get a basic magnetic switch with nothing more than a 5v battery by connecting the magnet ports to the + and G pins. When a magnet is brought close to the sensor, the voltage will change and send a signal to the sensors integrated LED, telling it to light up. This is as simple as this sensor comes. We would like to do something a bit more complicated though.


  • Hall sensor module using M44 switch 
  • With comparator regulating Hall signal 
  • AO, real-time Hall signal output 
  • DO, steadier Hall signal output 
  • Comparator Output Current: 16mA 
  • Power Supply: 0-15 V DC 
  • Hole Inner Diameter: Approx. 3mm 
  • Size (L x W): Approx. 36 x 16mm


  • Battery powered application
  • Infrared application
  • Power tool
  • Flow meters
  • Valve and solenoid status
  • Brushless dc motor
  • Proximity sensing
  • Tachometer

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