ULTRASONIC RANGING MODULE HC-SR04

Description

The HC-SR04 Ultrasonic Ranging Module is a popular distance measurement sensor used in robotics, automation, and electronics projects. It works by transmitting ultrasonic sound waves and measuring the time taken for the echo to return, allowing accurate non-contact distance detection.

It is widely used in obstacle avoidance robots, smart parking systems, level measurement, and DIY Arduino projects due to its low cost and reliable performance.

KEY FEATURES

• Ultrasonic distance measurement sensor module
• Operating range: approx. 2 cm to 400 cm
• High accuracy with stable performance
• Non-contact distance sensing
• 40 kHz ultrasonic transmitter and receiver pair
• Easy interface with microcontrollers (Arduino, PIC, Raspberry Pi, etc.)
• Trigger and Echo digital signal pins
• Low power consumption
• Compact and lightweight PCB module
• Ideal for robotics and automation projects

SPECIFICATIONS

• Product Type: Ultrasonic Distance Sensor Module
• Model: HC-SR04
• Operating Voltage: 5V DC
• Operating Current: ~15 mA
• Measuring Range: 2 cm – 400 cm
• Measuring Angle: <15°
• Operating Frequency: 40 kHz
• Accuracy: ±3 mm (approx.)
• Trigger Input Signal: 10 µs TTL pulse
• Echo Output Signal: TTL pulse proportional to distance
• Interface Pins: VCC, Trig, Echo, GND
• Sensor Type: Ultrasonic transmitter + receiver
• Material: PCB with ultrasonic transducers
• Application: Obstacle detection, distance measurement, robotics, automation systems