SKU: TH0906
The HC-SR04 is a trustworthy, reliable and most affordable ultrasonic distance sensor that measures the distance to an object by emitting ultrasonic sound waves and then timing the reflection from the object.
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The HC-SR04 is a trustworthy, reliable and most affordable ultrasonic distance sensor that measures the distance to an object by emitting ultrasonic sound waves and then timing the reflection from the object.
It offers a wide range, capable of measuring distances from 2cm to 400cm, with high accuracy typically around 3mm. It features a simple interface with only four pins: Vcc, Trig, Echo, and GND. It has low power consumption and is designed to be durable and compact, ensuring minimal power draw and a robust, small-sized build.
Technical specification for HC-SR04 ultrasonic distance sensor.
| Operating Voltage | 5V DC |
|---|---|
| Quiescent Current | < 2mA |
| Working Current | < 15mA |
| Ultrasonic Frequency | 40kHz |
| Range | 2cm to 450cm |
| Accuracy | ±3mm |
| Measure Angle | < 15° |
| Output Signal | Pulse width signal |
| Operating Temperature | -10°C to +50°C |
Pinout for HC-SR04 ultrasonic distance sensor.
| VCC | Power pin, connects to the 5V power supply. |
|---|---|
| TRIG | Trigger pulse input pin. |
| ECHO | Echo pulse output pin. |
| GND | Connects to ground. |
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