Description
- Model: HC-SR04 Ultrasonic Sensor
- Operating Voltage: 5V DC
- Working Current: 15mA (typical)
- Frequency: 40kHz
- Measuring Range: 2cm – 400cm
- Measuring Angle: Approx. 15°
- Accuracy: ±3mm
- Trigger Input: 10µs TTL pulse
- Echo Output: TTL pulse proportional to distance
- Dimensions: 45mm x 20mm x 15mm
- Applications: Robotics, obstacle avoidance, distance sensing, level measurement
- Compatibility: Arduino, ESP32, STM32, Raspberry Pi







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