Blind Stick Using Arduino & Ultrasonic Sensor

We are using 3 nos ultrasonic sensor with Arduino in this project. One sensor for left side object detection, one sensor for front side object detection & one for right side object detection. By default front sensor will activate & will play message go forward .  If any object is in range (50 cm), then it will check left & right side sensor’s. If left side sensor is no object then it will play message go left otherwise it will check right sensor, if there is no object in  it will play play go right message. If left & right side both have object’s then it will play message stop.

For message we are using memory card to hold mp3 files with prerecorded message’s. According to instruction from Arduino mp3 player will play message.

Project customization is also available.