Hall Effect Sensor Circuit Raspberry Pi

Introduction based on hall effect a hall sensor is a one that varies its output voltage in response to a magnetic field.
Hall effect sensor circuit raspberry pi. We have previously interfaced hall sensor with arduino and raspberry pi and made few projects using hall sensor like digital speedometer magnetic door alarm etc. In this tutorial i use a cheap allegro a1120eua sensor. Hall sensor module ky 003 ky 024 for raspberry pi and arduino. 1 raspberry pi 1 breadboard 4 jumper wires male to male 2 red and 2 black.
A switch hall sensor consists of voltage regulator hall element. Hall sensors can be categorized into linear analog hall sensors and switch hall sensors. Raspberry pi raspberry pi sensors. This output voltage suppose v is now known.
This guide explains how to connect a hall effect sensor to the raspberry pi and detect the presence of magnetic fields. The circuit diagram for controlling a 5v relay module with hall effect sensor and arduino is shown below. Small magnetic sensor that can be used as a switch or a detector. Home raspberry pi sensors hall sensor module ky 003 ky 024 for raspberry pi and arduino.
Control a relay with arduino and hall effect sensor. Applications of hall. The circuit diagram for the magnetic polarity detector is given below. The hall effect sensor produces a voltage that is zero when no current flow in the wire and a positive voltage when current flow in one direction and.
The working of this circuit is very simple. Typically the sensor is integrated with a wound core or permanent magnet that surrounds the. This is a useful technique for measuring the position of things or even detecting movement. Hall effect is a kind of electromagnetic effect.
For using hall effect sensor with raspberry pi connect the components according to the schematic below. Here two hall effect sensors are used to detect the north pole and the south pole of the magnet. Whenever the hall effect sensor is subjected to a magnetic field it toggles the relay as per the code. A hall effect sensor can measure current without any electrical connection to the high amp electrical system it rely solely on the magnetic field set up by a the current flowing through the wire.
Hall sensors are used for proximity switching positioning speed detection and current sensing applications. And a hall sensor can be used to measure the current without interrupting the circuit.