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ESP32 web server

HC-SR04 Ultrasonic Distance Sensor with ESP32: How It Works, Wiring, and a Live Web Dashboard

8. August 2026 by Omar Draidrya
Hand holding a flat board in front of an HC-SR04 ultrasonic sensor mounted on a grey OmGrid baseplate with an ESP32 and the OmArTronics logo

Wire an HC-SR04 to an ESP32, read distance over Serial, then serve a live dashboard from the chip in one upload. Includes measured jitter and range data.

Categories Microcontroller, Sensors & Actuators Tags Arduino Projects, Distance Sensor, ESP32, ESP32 Arduino IDE, ESP32 web server, HC-SR04, Sensor Tutorial, Ultrasonic Sensor Leave a comment
Omar - OmArTronics
Omar
Mechatronics Engineer & Maker

Hey, I'm Omar. I'm a mechatronics engineer and researcher who likes building robots and Arduino projects from scratch. I share everything here so you can build your own.

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