Build a Digital Tape Measure! (ESP32 + Ultrasonic Sensor + OLED)
Автор: Yantr
Загружено: 2026-01-19
Просмотров: 8
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Welcome back to the channel! 📏
Today, we are upgrading our sensor game by visualizing data directly on a screen. We will connect an HC-SR04 Ultrasonic Sensor to an ESP32 and display the real-time distance readings on a 0.96" OLED Display.
This setup is the foundation for many cool projects like digital tape measures, obstacle-avoiding robots, and DIY parking assistants.
In this video, we cover:
The Circuit: How to wire the HC-SR04 (5V) and OLED (I2C) to the ESP32 correctly.
Voltage Logic: Why you might need a voltage divider for the Echo pin.
The Code: Using the Adafruit_SSD1306 library to draw text on the screen.
Demo: Testing the accuracy of our new digital ruler!
Hardware List:
ESP32 Development Board
HC-SR04 Ultrasonic Sensor
0.96" I2C OLED Display (SSD1306)
Jumper Wires & Breadboard
#ESP32 #ArduinoIDE #OLEDDisplay #HCSR04 #UltrasonicSensor #ElectronicsProject #DIYElectronics #EmbeddedSystems #Maker #Coding
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