This HC-SR04+ ultrasonic distance sensor is compatible with 3.3 V to 5 V voltage range and it also works on smaller operating current at 3 mA.
This sensor is an upgraded version of HC-SR04 sensor, it is used in a wide range of projects for obstacle detection, distance measurement and so on.
See Description for more details about the product.
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The sensor is very easy to use, with only 4 pins: VCC and GND, which are used for power and two digital pins, used for the trigger and the echo.
Operating principle: This module outputs 40 kHz at 40 kHz and measures the return time, outputs a signal with the amplitude to which it is powered. By measuring the time of the high signal, the distance is determined.
The calculation formula is: Distance = (high-time x sound speed (340 m / s) / 2.
Caution: When using, connect the table first to avoid sensor malfunction.
Dimensions: 45.4 x 26.2 x 18 mm.
The Datasheet for HC-SR04 is available in the Downloads section.