Holding a magnet near the sensor will cause the output pin to toggle.
A3144 hall effect sensor circuit.
The hall effect sensor we will use in this circuit is an a1302 hall effect sensor manufactured by allegro.
The internal circuit diagram of the hall effect sensor module is given below.
A3144 hall effect sensor belongs to the special class of sensors that measure the magnetic field.
Hall sensors works on the principle of hall effect proposed by edwin hall in 1869.
Hall effect sensor module consists of four pins i e.
Whenever the hall effect sensor is subjected to a magnetic field it toggles the relay as per the code.
This is primarily a magnetic switch that opens when placed near a magnetic field.
This ic can detect magnetic fields.
A3144 is a digital output hall sensor meaning if it detects a magnet the output will go low else the output will remain high.
Vcc gnd do ao.
Where to make use of hall effect sensor.
Additionally the a3144 hall effect sensor datasheet can be located at the bottom of the page.
The a3144e us1881 is an integrated hall effect latched sensor.
A3144 is a digital output hall sensor meaning if it detects a magnet the output will go low else the output will remain high.
A reed sensor also works nicely but can be limited by the glass encapsulation and size.
The working of this circuit is very simple.
The statement proposed says the hall effect is the production of a voltage difference the hall voltage across an electrical conductor transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current.
A hall effect sensor as then name suggests works with the concept of hall effect as well as is utilized to discover magnets.
There are two main types of hall effect sensor one which gives an analog output and the other which gives a digital output.
It is also mandatory to use a pull up resistor as shown below.
The digital output pin is connected to the output pin of the lm393 comparator ic while the analog pin is connected to the hall effect sensor.
How to use hall effect sensor.
There are two main types of hall effect sensor one which gives an analog output and the other which gives a digital output.
Thats nice but what does it do.
Control a relay with arduino and hall effect sensor.
To recognize why these specifications are very important read even more.
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.
Applications of hall.
How to use the hall effect sensor module.