Obstacle detector wrist watch for blind

This is a circuit that helps the blind people to detect the obstacles around them. Here an IR sensor module is used to sense the obstacle in a range of 15-150cm. When an obstacle comes in front of the IR sensor then it detects it by the reflected waves and thereby produces an out put voltage. This output voltage is given to a vibrating motor through an H-bridge IC. That is The vibrating motor starts vibrating when obstacle come front of the watch.

Tags: obstacle detector, IR sensor circuits, inventory circuits, circuit ideas, circuits for handicaped people, electronic mini projects, projects without microcontroller