FUNCTION AND USAGE OF TOUCH SCREEN AND HALL EFFECT SENSOR A capacitive touch screen sensor is a control display that uses the conductive touch of a human finger or specialized

device for input.It detects touch or near proximity without relying on physical contact.It also detects anything that is conductive and which has a dielectric different from air.It finds its application in home appliances and it has automotive and industrial application.It is used in mp3 player and mobile phones also. A hall effect sensor is used to measure the magnitude of magnetic field.Isis also used to get positions ,distance and speed in automotive system.lt finds its application in various fields.It is used in magnetic switch to get voltage output.it also measures magnetic flux density.They are also used in vehicles as camshaft position sensors.it is also used in inclinometer.