
HC-SR04 Ultrasonic Distance Sensor
৳ 1.02
HC-SR04 Ultrasonic Distance Sensor for robotics, IoT, electronics learning, and embedded prototyping.
Popular non-contact distance sensor for measuring object distance in robotics and automation projects. It uses ultrasonic pulses to estimate range and is easy to interface with Arduino, ESP32, STM32, and Raspberry Pi projects.
Key features
- Typical range around 2 cm to 400 cm
- Trigger/echo digital interface
- Useful for obstacle detection
- Great for robots, tanks, parking aids, and measurement demos
Original AI Electro Mart description prepared from product specifications and common usage.




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