HC-SR04-33 Ultrasonic Distance Sensor - 3.3V/5V

This economical ultrasonic module provides non-contact distance measurement for range-finding and obstacle-detection projects. It measures from 2cm to 400cm, with ranging accuracy that can reach up to 3mm.

Each module includes an ultrasonic transmitter, a receiver and a control circuit. The interface is simple, with four pins: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground).

This 3.3V-compatible version can be operated at both 3.3V and 5V, making it easier to use with a wider range of microcontroller boards. It also includes additional control circuitry that can help prevent inconsistent “bouncy” data depending on the application.

Features:

• Non-contact measurement functionality from 2cm to 400cm.
• Includes an ultrasonic transmitter, a receiver and a control circuit.
• Four-pin interface: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground).
• Additional control circuitry can prevent inconsistent “bouncy” data depending on the application.
• Can be operated at both 3.3V and 5V.
• Same ultrasonic sensor used with the XRP kits Beta & DIY.

Specifications:

• Operating Voltage: 3.3V~5V DC
• Current: 15mA
• Frequency: 40Hz
• Max Range: 4m
• Min Range: 2cm
• Measuring Angle: 15°
• Trigger Input Signal: 10uS TTL pulse
• Echo Output Signal: Input TTL lever signal and the range in proportion
• Dimension: 45 x 20 x 15mm
• Ranging accuracy: Can reach up to 3mm

A handy sensor for robotics, simple distance measurement, obstacle detection and maker projects using 3.3V or 5V logic.