HC-SR04 Ultrasonic Distance Sensor Module, 2–400 cm Range

The HC-SR04 is an ultrasonic distance sensor module designed for non-contact distance measurement with high precision. It operates at 40 kHz, emitting ultrasonic waves and measuring the echo time to calculate distances ranging from 2 cm to 400 cm with an accuracy of ±3 mm. The module outputs a TTL pulse signal and requires a 5 V DC power supply, with a sensor beam angle of less than 15° and static current below 2 mA. It is compatible with microcontrollers including Arduino, Raspberry Pi, STM32, and ESP32, making it suitable for robotics, obstacle detection, and object ranging applications.

• Measurement Range: 2–400 cm for versatile distance sensing

• Frequency: 40 kHz ultrasonic signal for precise echo detection

• Accuracy: ±3 mm typical measurement precision

• Output Signal: TTL pulse width signal corresponding to distance

• Trigger Input: 10 µs TTL pulse for measurement initiation

• Operating Voltage: 5 V DC with low power consumption

• Sensor Beam Angle: Less than 15° for focused detection

• Static Current: Less than 2 mA for energy-efficient operation

• Brand / Model | HC-SR04

• Product Type | Ultrasonic Distance Sensor Module

• Measurement Range | 2–400 cm

• Accuracy | ±3 mm

• Operating Frequency | 40 kHz

• Trigger Input | 10 µs TTL pulse

• Output Signal | TTL pulse width corresponding to distance

• Operating Voltage | 5 V DC

• Static Current | <2 mA

• Sensor Beam Angle | <15°

• Dimensions | Approx. 45 × 20 mm

• Applications | Robotics, obstacle detection, object ranging, automation

• HC-SR04 Datasheet
• 3D model Step File (Grabcad)

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