HC-SR04 Ultrasonic Distance Sensor Module

HC-SR04 Ultrasonic Sensor

The HC-SR04 Ultrasonic Sensor Module is a popular tool for measuring distance and detecting objects. It’s small, easy to use, and combines everything you need—a transmitter, receiver, and control circuit—in one module. It works like a sonar, sending out sound waves to measure the distance to objects, just like how bats and dolphins sense their surroundings.

This HC-SR04-Ultrasonic Range Finder can measure distances from 2 cm up to 400 cm with high accuracy, about 3 mm. It’s reliable for many projects, from robotics to simple object detection, and works well even in different lighting conditions. 

This HC SR04 ultrasonic distance sensor module has two main pins, Trigger and Echo, which connect easily to microcontrollers like Arduino, making it perfect for projects where you need non-contact distance sensing.

Check out the best selection of Distance Sensors.

Note: The HC-SR04 sensor has a 5V output (which needs to be reduced to 3.3V to work with the Raspberry Pi).

Read our blog on how to connect ultrasonic sensor to Raspberry Pi.

Features:

• Non-Contact Distance Sensor
• Measures 2cm to 400cm
• Sonar technology for accuracy
• Suitable for robotics and DIY projects
• Stable performance indoors and outdoors
• Durable materials
• Easy to install, user-friendly
• 5V DC power supply
• High resolution: 0.3 cm
• Best ultrasonic sensor for Arduino and Raspberry Pi projects

Applications: