this is rover
used to find out any object
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Step 1: Sensors
This has ultrasonic sensor
hall effect sensor
when any object is around 4cm rover stops and take's right direction
halleffect sensor :this is used to learn ow much rotation does wheel had traveled
if battery stops solar power is turned ON.
Step 2: Halleffect Sensor
A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field. Hall effect sensorsare used for proximity switching, positioning, speed detection, and current sensing applications. In its simplest form, thesensor operates as an analog transducer, directly returning a voltage.