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Arduino HC-SR04 Ultrasonic Sensor Distance Meter with SSD1306 OLED Display

Learn how to build an Arduino-based distance measurement device using the HC-SR04 ultrasonic sensor and a 128×64 I2C OLED (SSD1306). Displays accurate distances in millimeters, centimeters, and meters. Perfect for DIY robotics, water level monitoring, parking sensors, and more. 🧰 Usage Examples of the Ultrasonic Distance Meter Project 1. Obstacle Detection for Robots ✅ Why […]