How to Make an Echolocation Device That Uses Lights

Have you ever found yourself in a very dark place and you keep bumping into walls around you. Well with this echolocation device, you no longer need to worry. This device uses sound waves that bounce off of walls that are close or nearby and sense if the object is close or nearby. Then, it makes a loud sound if it is close and either a yellow or red light turn on (If the object is close then the yellow light will turn on, if the red and yellow light turns on, then the object is really close.)

Computer

Arduino

wires

Piezo (buzzer)

ultrasonic distance sensor

red and yellow lights

breadboard

battery pack

sweater sleeve

piece of wood (4 1/2 inches by 3 1/2 inches)

First circuit the Arduino board and breadboard using the Arduino board, breadboard, lights, wires, Piezo and ultrasonic distance sensor. (use the Tinkercad model for reference)

Next, using Tinkercad and Arduino ide, code the Arduino board (the code is in the file)

Then, attach the arduino board and breadboard to the piece of wood.

Lastly, glue the piece of wood to the sweater sleeve. And you are done!!!!! To use it, plug in a battery pack to the arduino and you can go in the dark now without bumping into walls.