Hello friends ,
We have seen different types of sensors like ultrasonic,Gyroscope,proximity and other.
Hall effect is also a sensor like all the mentioned above. But this sensor is magnet flux controlled sensor. It produces flux but it have a limited value of flux .
it works when the magnetic flux value increases .
When coming into its working as i have said already when we place a flux source near it like when we place a magnet near to the sensor , the flux increase and the limit exceeds and the sensor senses the condition and it produces a voltage back and sends signal to the device which it is fixed.
Applicaions
It is mainly used in seurity devices
automatic railway gates
mini projects and etc.
image source: Google
thank you
Gande.Prudvi Raj
GPR Tech 
Thank you for sharing your thoughts and knowledge on this topic. This is really helpful and informative, as this gave me more insight to create more ideas and solutions for my plan. I would love to see more updates from you.Elcometer
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