Arduino Hall Effect Sensor Circuit

A hall effect sensor can be used in most places where you would use an ultrasonic proximity detector or an infrared sensor to detect changes or movement in the environment.

Arduino hall effect sensor circuit.

Simply speaking a hall effect sensor or ic detects motion position or change in magnetic field strength of either a permanent magnet an electromagnet or any. Furthermore a 10k resistor is connected. Acs acs arduino arduino projects current sensor arduino interfacing current transducer symbol hall effect current sensor circuit hall effect sensor mains current sensor share on tumblr monitoring the current flow in a device. If you remember the arduino waterflow sensor tutorial we implemented earlier the main component of the water flow sensor is the hall effect ic.

The only primary difference is that a hall effect sensor requires a magnet to also be employed for it to detect changes while ir and ultrasonic sensors are able to function. The vout or signal pin of the hall effect sensor is connected to the arduino s interrupt pin digital pin 2. As per the breakout application note hall effect current sensor connected with target load and output signal is connected with well known arduino s a0 analog input pin 0. The vcc of the sensor is connected to arduino s 5v power pin.

Whenever it will be placed in the region of magnetic field then it will detect it and will give us the output. In this tutorial i am going to measure dc current using acs712 hall effect based linear current sensor and arduino uno. A hall effect sensor works on the principle of well hall effect. Here two hall effect sensors pinout given the a1321 range sensor gives analog out linear sensor and us1881 range sensor gives digital out both sensors can be easily interfaced with arduino board if we use digital hall effect sensor we need to give bias from 5v to the output terminal through 10kω resistor.

This ic can detect magnetic fields. Interfacing arduino and acs712 hookup. This sensor breakout consumes power from arduino power source 5 and gnd. Interfacing the hall effect sensor with arduino is really simple.

The gnd of the sensor is connected to the gnd pin on the arduino. I have gone through various blogs on internet about interfacing acs712 current sensor with arduino and other microcontrollers. This is an typical application circuit from datasheet. We have one input which is the sensor and one output which is a led.

The hall effect sensor we will use in this circuit is an a1302 hall effect sensor manufactured by allegro. Hall effect sensor with arduino circuit and code hall effect sensor module interfacing with arduino this module is used to detect the presence of magnetic. Acs712 can measure current precisely and accurately if properly managed. Hall effect sensor arduino code.

The complete arduino code is just few lines and it can be found at the bottom of this page which can be directly uploaded to your arduino board if you want to know how the program works read further.