This ROBOT if it senses the obstacle through sensor will drive the motors in the alternative right turn until it detects the clean path. Here the comparator will set the reference point for the input signal which will help the Controller to get strong input signal.
Three sensors are connected to microcontroller will detect the obstacle. The Microcontroller will control the motor based on the signal received from any of the sensor present in the system.
Ultra sonic sensor is connected to micro controller. Micro-controller will stop the motors if the ultrasonic sensors detects any obstacle.
This is connected with three sensor corresponding to the directions forward, left, and right. The robot will move in the opposite direction if it detects the obstacle e.g. If two sensors are sensing the object at a time then the robot will move to the opposite direction of two.
RF transmitter will transmit the signals through encoder.Receiver will receive that Signal that signal through decoder. Transmitter and receiver are having the unique communication with each other. According to that signal Robot will move to the required direction which has been connected with the microcontroller
IR transmitter emits IR rays which are reflected by the white surface and absorbed by the black surface
thus the robot tracks the black line from which the rays is not reflected.


