Description

The HC-SR04 is an ultrasonic sensor module used for distance measurement, offering a range from 2 cm to 3 meters with a resolution of 3 mm. It operates on a 5V power supply with low current consumption (<2mA) and outputs a PWM signal that corresponds to the measured distance. The module uses ultrasonic waves to calculate the distance to objects and is ideal for applications such as obstacle detection, distance measurement, and level sensing.

Key Features & Benefits

• Wide Range: Measures distances from 2 cm to 300 cm.
• High Precision: 3 mm resolution for accurate measurements.
• Low Power: Consumes less than 2mA, running on 5V.
• Fast Measurements: Up to 50 measurements per second.
• Simple Interface: Easy to use with TTL-level trigger and echo signals.
• Compact Design: Small size (45mm x 21mm x 18mm), suitable for various applications.

Applications

• Obstacle Detection: Used in robotics and navigation systems.
• Distance Measurement: For automation and distance tracking in industrial setups.
• Level Sensing: Ideal for liquid level measurement in tanks or containers.
• Automation & Control: In applications requiring precise, continuous distance monitoring.

Specifications

• Power Supply: 5V ±10%, GND 0V
• Signal Level: TTL level (Trigger, Echo)
• Measurement Range: 2 cm to 300 cm
• Accuracy: 3 mm
• Measurement Interval: 0.3 cm
• Max Measurements/Second: 50
• Trigger Input: TTL-level falling edge (minimum 10 µs)
• Output Signal: PWM (Echo)
• Dimensions: 45 mm x 21 mm x 18 mm
• Operating Temperature: 0°C to +70°C