Hall Effect Dc Current Sensor Arduino

In this tutorial i am going to measure dc current using acs712 hall effect based linear current sensor and arduino uno.

Hall effect dc current sensor arduino. This sensor can be used in ac and dc systems requiring isolation from the measured circuit and has low insertion loss and more connection options compared to conventional resistive current shunts. A hall effect sensor works on the principle of well hall effect. Introduction if you recall the previous arduino project i have discussed about measuring voltages greater than 5v with arduino using a voltage sensor. Acs712 current sensor interfacing with arduino for ac and dc current measurement.

Wayintop 2pcs acs712 hall effect current sensor module 30a range acs712 module 2pcs voltage sensor module dc0 25v voltage tester terminal sensor for arduino 5 0 out of 5 stars 2 9 99 9. This is done to pull the output of the hall effect sensor to 5v. If you remember the arduino waterflow sensor tutorial we implemented earlier the main component of the water flow sensor is the hall effect ic. I have gone through various blogs on internet about interfacing acs712 current sensor with arduino and other microcontrollers.

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. Acs712 is a cheap solution for current sensing in industry power sector and communication. Current stock has red pcb the cs 100a is a hall effect current sensor board capable of measuring bi directional dc current flow. The advantage of using a hall effect sensor is that the circuit being sensed and the circuit reading the sensor are electrically isolated this means that although your arduino is running on 5v the sensed circuit can be operating at higher dc or ac voltages.

The vout or signal pin of the hall effect sensor is connected to the arduino s interrupt pin digital pin 2. Furthermore a 10k resistor is connected between the vcc and vout pins of the hall effect sensor. In this project we will discuss about acs712 current sensor how a hall effect based current sensor works and finally how to interface the acs712 current sensor with arduino. Acs712 can measure current precisely and accurately if properly managed.

In this project. This sensor operates at 5v and produces an analog voltage output proportional to the measured current. The gnd of the sensor is connected to the gnd pin on the arduino. The acs723 sensor uses a hall effect sensor to output a voltage relative to the current flowing through the ip and ip pins.

Acs712 is a current sensor that can operate on both ac and dc.