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Highlights
HC-SR04,an ultrasonic sensor distance measuring module
Stable, accurate distance measurement
High precision, blind spots (3cm) super close
A full set of ranging process
![[HK Stock]HC-SR04 Ultrasonic Ranger Sensor Distance Measuring Module For Arduino/RPi/AVR/STM32](http://img.gkbcdn.com/s3/d/201810/f18e0857-4d42-49a3-a4d1-a2a5db7f0e16.jpg)
![[HK Stock]HC-SR04 Ultrasonic Ranger Sensor Distance Measuring Module For Arduino/RPi/AVR/STM32](http://img.gkbcdn.com/s3/d/201810/4642bcc5-2053-439b-adb5-5f43d2ef8849.jpg)
![[HK Stock]HC-SR04 Ultrasonic Ranger Sensor Distance Measuring Module For Arduino/RPi/AVR/STM32](http://img.gkbcdn.com/s3/d/201810/c33924ed-470e-47ea-8324-8f5bc3096cbc.jpg)
Specification
| General | |
|---|---|
| Model | HC-SR04 |
| Quantity | 1 Piece |
| Specification | |
| Operating Voltage | 5V DC |
| Static Current | Less than 2mA |
| Output Signal | Electric frequency signal, high level 5V, low level 0V |
| Sensor Angle | Less than 15 degrees |
| Detection Distance | 2~450cm |
| Precision | Up to 3mm |
| Mode of Connection | VCC / trig(T)/echo(R)/GND |
| Dimensions & Weight (Main Product) | |
| Dimension | |
| Weight | |
| Package Contents | |
| 1x Ultrasonic Ranger module | |
Module Working Principle:
Adopt IO trigger through supplying at least 10us sequence of high level signal.
The module automatically sends eight 40khz square wave and detects whether the returning pulse signal is received.
If there are returning signals,its throughput reaches high level,high level continuing takes the same time as from ultrasonic transmitting to receiving.
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