Curriculum
Ultrasonic Sensor Basics
Ultrasonic Basic code
0/2
Object Detection Using Ultrasonic Sensor and LED
0/5
Reverse Parking Assistance System
0/4
Height Checker Using Ultrasonic Sensor and OLED Display
0/3
Text lesson
About the Project
About the Project
Starting with the simplest version first so students(you) can understand how the ultrasonic sensor works before adding LED and OLED.
Components
- Arduino UNO
- HC-SR04 Ultrasonic Sensor
- Jumper wires
Connections
| HC-SR04 | Arduino UNO |
|---|---|
| VCC | 5V |
| GND | GND |
| TRIG | Pin 9 |
| ECHO | Pin 10 |
Steps
- TRIG pin sends sound waves.
- ECHO pin receives the reflected sound.
- Arduino measures the time taken and calculates the distance.
- The distance is shown in the Serial Monitor.