Ultrasonic LED-meter

The Project

This is An Ultrasonic LED-meter in which LEDs glow according to the distance of an object from the Ultrasonic sensor. When the last red LED glows, a buzzer also beeps until the LED turns off(i.e. when the distance between the object and the U.S sensor is greater than 2.5cm).

View this project on YouTube

Team Comments

I chose to make this project as it could be used at parking lots to make parking a lot easier and lessen risk of a car crash, as people in my community park their cars improperly.

I found the code a little difficult especially the code for the OLED screen, but after some researching, I made the code work.

I would like to refine the code as sometimes it would record the distance as a negative integer, making the buzzer beep (as the buzzer and red LED are coded to turn on when the distance is less than 2.5 cm.