Description: 1. HC-SR04 is a high-precision ultrasonic distance sensor module, available in packs of 20. It measures distances in centimeters or inches using sound waves. 2. Operation Principle: The device emits short bursts of ultrasonic sound that bounces off objects and returns to the sensor, calculating the time difference to determine distance. 3. Features: Compact size (60x45mm), easy triggering with a 5V signal, high accuracy (measuring range: 2cm-510cm/0.08in-200in), and adjustable echo threshold for noise reduction. 4. Easy Integration: This module can be integrated into various applications such as robotics, automatic doors, and home security systems using Arduino, Raspberry Pi, or other microcontrollers. 5. Versatile Connectivity: It comes with 3 connection wires (VCC, TRIG, ECHO) for easy interfacing with different platforms. A 4th wire is optional for ground connection. 6. Unique Benefits: The HC-SR04 offers high precision at a relatively low cost and allows for non-contact dista
| Specification | Details |
|---|---|
| Operating Voltage | 5V (recommended) 3.3V supported |
| Measurement Range | 2 cm to 400 cm (1.6 in to 12.7 ft) |
| Accuracy | ±3 mm (±0.12 in) at 20°C (68°F) |
| Frequency | 40 kHz |
| Working Mode | Single shot continuous measurement |
| Measurement Type | Non-contact distance measurement |
| Interface | Trigger Pin (TRIG) Echo Pin (ECHO) |
| Package Size | 51mm x 20mm x 12.5mm (2 in x 0.8 in x 0.5 in) |
| Weight | Approximately 10 grams |
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