Hall Effect Switch Arduino

Interfacing hall effect sensor with arduino.

Hall effect switch arduino.

The hall effect sensor will switch only if it is subjected a sufficient magnetic flux density as well correct polarity. Hall effect sensor arduino program the hall effect sensor involves in contact less sensing to count the number of revolutions of a wheel digital speedometer motor speed and position control and more position detection circuits. A hall effect sensor can be sensitive to either north pole or south pole but not both. Using hall effect sensor with arduino uno sensors have always been a vital component in any project.

These are the ones which convert the real real time environmental data into digital variable data so that it can be processed by electronics. The arduino will be programmed such that when a magnet is brought close to the hall effect sensor the led comes on and when the magnet is removed it goes off. For today s tutorial we will demonstrate how the hall effect sensor works by connecting it alongside a led to an arduino. The arduino hall effect sensor code can be used to detect a magnet and count the number of times it detects it.

Whenever the hall effect sensor detects a magnet it outputs a high 5v voltage to its vout pin. This is a very simple arduino code that utilizes the interrupt pin 0 digital pin 2 of the arduino. We are going to use a hall effect switch to turn the arduino uno s built in led on and off with a magnet. Connect pin 1 of the switch to the arduino 5v supply red wire connect pin 2 to 0v black wire connect pin 3 to arduino input pin 12 orange wire.

One disadvantage of a hall effect sensor is the much lower measuring accuracy compared to fluxgate magnetometers or magnetoresistance based sensor. This sensor made easy to measure accurate position and steps of rotating device.