New
HC-SR04 Ultrasonic Distance Sensor Module
Sensors & Modules
The HC-SR04 Ultrasonic Distance Sensor Module is a high-precision, non-contact distance measuring sensor that uses ultrasonic sound waves to accurately detect the distance between the sensor and an object. It features separate Trigger (TRIG) and Echo (ECHO) pins for easy interfacing with Arduino, ESP8266, ESP32, Raspberry Pi, STM32, and other microcontrollers. With a measuring range of approximately 2 cm to 400 cm, the HC-SR04 is widely used in robotics, obstacle avoidance, distance measurement, smart parking systems, and automation projects. Its accuracy, affordability, and ease of use make it one of the most popular sensors for students, makers, and electronics enthusiasts. Applications: Arduino and ESP32 projects Distance measurement systems Obstacle avoidance robots Smart parking systems Water level monitoring Automatic door and gate control Robotics and automation IoT and embedded systems DIY electronics projects Educational STEM and engineering experiments₹74