In this project I’m using an ultrasonic sensor that can precisely measure the distance to show how a beep sound come out when a car is reversed. You will noticed that when the car is too near to the barrier behind the car, it will give a continuous beep sound. Let’s figure out how it works!
|Ultrasonic Sensor : VCC||Maker UNO: 5V|
|Ultrasonic Sensor : GND||Maker UNO: GND|
|Ultrasonic Sensor : Trig||Maker UNO: pin 11|
|Ultrasonic Sensor : Echo||Maker UNO : pin 12|
This is the sample code used for this tutorial. Try it!