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Ultrasonic HC-SR04 distance measuring transducer sensor, providing precise and reliable readings.
HC-SR04 comprises an ultrasonic transmitter, receiver, and control circuit, emitting 40KHz ultrasonic pulses when triggered, and receiving echoes from objects.
Power supply: 5V DC; Quiescent current: less than 2mA; Effective angle: less than 15°; Detection range: 0.79 in--177 in; Resolution: 0.12 in.
Package Content: 5pcs HC-SR04 sensors with a small gift included.
Ideal for Arduino, Raspberry Pi, and similar projects, featuring acrylic brackets and jumper wires for easy installation and usage.

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HC-SR04 Ultrasonic Distance Sensor x5
Acrylic Mounting Bracket x5
Female to Male Jumper Wires x20
Male to Male Jumper Wires x20

Working Principle:
Pull the Trig pin to a high level for over 10 microseconds pulse, and the module starts ranging.
The module automatically sends eight 40KHz square waves to detect whether a signal is returned.
After ranging, if an object is detected in front, the Echo pin will be at a high level, with the duration of the high level varying based on the distance, allowing for easy distance calculation. Distance = (Duration of high level) * (Speed of Sound: 340m/s) / 2

Specifications:

Operating Voltage: DC5V
Quiescent Current: Output Level: High 5V, Low 0V
Detection Angle: No more than 15 degrees
Detection Range: 0.79 in--177 in
High Accuracy: Up to 0.12 in
Connection Mode: VCC, trig (control), echo (receiving end), GND ground wire

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