We have one input which is the sensor and one output which is a led.
Hall effect sensor circuit arduino.
If you remember the arduino waterflow sensor tutorial we implemented earlier the main component of the water flow sensor is the hall effect ic.
Today we will look at how to use a hall effect sensor with arduino.
A hall effect sensor is a sensor that varies its output based on the presence or absence of a magnetic field.
This means that the output signal produced by a hall effect sensor is a function of magnetic field density around it.
Hall effect sensor arduino code.
This ic can detect magnetic fields.
The vout or signal pin of the hall effect sensor is connected to the arduino s interrupt pin digital pin 2.
A hall effect sensor works on the principle of well hall effect.
Hi guys welcome to today s tutorial.
The hall effect sensor we will use in this circuit is an a1302 hall effect sensor manufactured by allegro.
The gnd of the sensor is connected to the gnd pin on the arduino.
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.
This is done to pull the output of the hall effect sensor to 5v.
Furthermore a 10k resistor is connected between the vcc and vout pins of the hall effect sensor.
We will then connect this ic to an arduino so that we the arduino can read the voltage output by the a1302 and we can display the readings to the computer screen.