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: Used to avoid and detect obstacles with robots like biped robots, obstacle avoider robots, path-finding robots, etc. Used to measure the distance within a wide range of 2cm to 400cm Can be used to map the objects surrounding the sensor by rotating it The depth of certain places like wells, pits, etc. can be measured since the waves can penetrate through the water Read our blog explaining the ultrasonic sensor working . Pinout
- Non-Contact Distance Sensor: HC-SR04 Ultrasonic Range Finder measures 2-400cm and is suitable for various applications.
- Endless Possibilities: Includes Sonar technology for accurate readings, perfect for robotics and DIY projects.
- Compact and Reliable: HC-SR04 features a small blind distance and provides stable performance.
- Durable Build: Made with high-quality materials, ideal for indoor and outdoor use.
- User-Friendly: Easy to install, suitable for beginners and experts.
- Power Supply +5V DC
- Working Current 15mA
- Output Signal Electrical frequency signal
- Ranging Distance 2cms – 400 cms
- Resolution 0.3 cm
- Measuring Angle 30 degree
- Dimensions 3 x 2 x 1cms
- Weight 15 grams