The HC-SR04 ultrasonic sensor works by emitting an ultrasonic pulse and measuring the time taken for the echo to return after hitting an object. The operation is such that the distance is calculated based on the speed of sound, thereby allowing accurate ranging without physical contact. Its simple interface and stable performance make it very suitable for beginners, students, and automation projects.
Key Features
• Sensor Type: Ultrasonic distance measuring sensor
• Measurement Method: Ultrasonic echo ranging
• Operating Voltage: 5V DC
• Detection Type: Non-contact distance measurement
• Accuracy: Stable and repeatable readings
• Interface Pins: VCC, Trig, Echo, GND
• Ease of Use: Simple wiring and programming
• Compatibility: Arduino and microcontroller systems
Suitable for
• Arduino projects
• Obstacle detection systems
• Smart car and robot navigation
• Distance measurement applications
• DIY electronics projects
• Training and educational kits
Technical Specifications
• Model: HC-SR04
• Operating Voltage: 5V DC
• Operating Current: Approximately 15 mA
• Measuring Range: 2 cm to 400 cm
• Measuring Angle: Less than 15 degrees
• Trigger Input Signal: 10 µs TTL pulse
• Echo Output Signal: TTL level signal
• Frequency: 40 kHz
• Mounting Holes: Yes
Why Choose This Product
The HC-SR04 ultrasonic sensor offers accurate distance measurement, reliable performance, and ease of integration. The operation is such that it will still remain stable during continuous operation, therefore making it suitable for smart car projects, robotics, and training applications. Its low cost and wide community support make it an excellent choice for learning and experimentation.
Package Includes
• Quantity: 1 piece
• Item: HC-SR04 ultrasonic distance sensor module
Weight
• Net Weight: 0.01 kg
Dimensions
• Dimensions (L × W × H): 4.5 cm × 2.0 cm × 1.5 cm
Reminder
• Ensure: Correct wiring of Trig and Echo pins
• Power: Use only 5V DC supply
• Note: Not suitable for soft or sound-absorbing surfaces
• Handling: Avoid exposure to moisture and physical impact
