General
Welcome to My Electronics Blog
A personal technical blog where I document electronics projects, Arduino experiments, ESP32 builds, sensors, IoT, and the things I learn along the way.
#Electronics
ESP32
Interfacing an HC-SR04 Ultrasonic Sensor with ESP32
A practical, wiring-first guide to reading distance from an HC-SR04 ultrasonic sensor on an ESP32 using the Arduino core, including the 5V-tolerance gotcha most tutorials skip.