Hall Effect Switch Arduino

Using hall effect sensor with arduino uno sensors have always been a vital component in any project.

Hall effect switch arduino.

A hall effect sensor can be sensitive to either north pole or south pole but not both. Hall sensor as a switch can be completely build in a case and is therefore protected against dirt and water. 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.

The arduino hall effect sensor code can be used to detect a magnet and count the number of times it detects it. We are going to use a hall effect switch to turn the arduino uno s built in led on and off with a magnet. These are the ones which convert the real real time environmental data into digital variable data so that it can be processed by electronics. But these sensors are quite more expensive for our diy projects.

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. Interfacing hall effect sensor with 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. 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.