Calculate RPM with Hall effect Sensor
How does it work? The Hall Effect sensor works on the principle of Hall Effect. According to which, whenever a magnetic field is applied in a direction perpendicular to the flow of electric current in a conductor, a potential difference is induced. This voltage can thus be used to detect whether the sensor is in the proximity of a magnet or not. The arduino can detect this voltage change through its interrupt pin and determine whether the magnet is near the sensor or not. The basic working of the Arduino hall effect sensor can be described as shown: Hall effect sensors have three pins: VCC(5V), GND and Vout(Signal). The pin out of a hall effect sensor is as shown above. Step 1: Connections for the Arduino Hall Effect Sensor Interfacing the hall effect sensor with Arduino is really simple. The VCC of the sensor is connected to Arduino’s 5V power pin. The GND of the sensor is connected to the GND pin of Arduino. And the Vout or Signal pin of the hall effect sensor is