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!
This tutorial use :
You can make the hardware connection based on the diagram and table below.
|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!
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