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Datasheet
Ultrasonic Distance Sensor – 3.3V (HC-SR04), 180 (Red): Reliable Non-Contact Range Finder
The Ultrasonic Distance Sensor – HC-SR04 (Red) is a cost-effective and reliable solution for non-contact distance measurement in robotics, automation, and DIY electronics projects. Operating at 3.3V–5V, this module provides precise ranging from 2 cm up to 400 cm with an impressive 3 mm accuracy. Its integrated ultrasonic transmitter, receiver, and control circuitry ensure stable and consistent performance, even in applications prone to noisy or “bouncy” data.
Featuring a simple 4-pin interface—VCC, Trig, Echo, and GND—the HC-SR04 is easy to connect to microcontrollers like Arduino, Raspberry Pi, or other embedded boards. With a compact 45 × 20 × 15 mm form factor and 15 measuring angle, it’s ideal for applications such as obstacle detection, level sensing, and distance measurement in compact environments.
Key Features
- Wide Voltage Range: Operates at 3.3V–5V DC, compatible with modern low-power controllers.
- Accurate Measurement: Range 2 cm – 400 cm with up to 3 mm precision.
- Low Power: Typical working current of 15 mA.
- Simple Pinout: 4-pin interface (VCC, Trig, Echo, GND) for easy integration.
- Stable Readings: Built-in control circuitry reduces inconsistent measurements.
- Measuring Angle: Narrow 15 beam for focused detection.
- Compact Module: Dimensions: 45X20X15 mm.
- Frequency: Operates at 40 Hz ultrasonic frequency.
- Applications: Perfect for robotics, obstacle avoidance, tank level sensing, and distance measurement systems.
