Navigate through a path avoiding road blocks and sound an alarm in case obstacle is encountered.

The Arduino Uno is powered from the USB port of the computer. 4 IR emitter is used to ensure that most of the Infra-Red light emitted reaches back to the IR receiver. A buzzer is connected to one of     the digital pins of the Arduino. When the obstacle approaches the system the buzzer beeps. As the obstacle gets closer and closer it beeps rapidly, stating that obstacle is near take diversion to avoid collision.This project can be taken further and improved to build IR torch for helping the Blind people.

 

1.Arduino board
2. Four IR LED Emitters
3. One LED IR receiver
4. One piezo electric buzzer
 5.Resistor (10K ohm)