Скачать или смотреть 7. Build an Arduino Digital Distance Meter with HC-SR04 & I2C LCD

In the 7th video of our Arduino Tutorial Series, we explore the HC-SR04 Ultrasonic Sensor and learn how to display real-time distance measurements on an I2C LCD.

This tutorial breaks down the physics behind ultrasonic waves—inspired by how bats navigate—and shows you how to convert sound wave travel time into precise centimeters or inches. We’ll cover the 40kHz frequency bursts, trigger pulses, and echo signals that make this sensor work.

What you will learn in this video:
1. How the HC-SR04 uses ultrasonic sound waves to detect objects.
2. Understanding the Trigger and Echo pulse timing.
3. The formula for calculating distance based on the speed of sound.
4. Wiring the HC-SR04 and I2C LCD to an Arduino Uno.
5. Important sensor limits, including its maximum range of 13 feet (400cm).

⏪ Prerequisites (Watch these first):

Video #5: Interfacing I2C 16x2 LCD with Arduino
🔗    • 5. Interfacing I2C LCD with Arduino: Only ...  


📁 Project Resources:

Source Code & Wiring Diagram: Will be updated soon

Full Arduino Playlist:    • Arduino Tutorial (Hindi)  

Components Used:
1. Arduino Uno / Nano
2. HC-SR04 Ultrasonic Sensor
3. 16x2 LCD with I2C Backpack
4. Breadboard and Jumper Wires

If you found this tutorial helpful, please Like the video and Subscribe to follow the rest of the series. If you have any questions about the code or wiring, feel free to leave a comment!

#arduino #ultrasonicsensor #HCSR04 #I2CLCD #diyelectronics #DistanceSensor #arduinotutorial #engineering #robotics #coding