This sensor is the enhanced version of the well-known HC-SR04 season sensor, a sensor used in a wide range of projects, obstacle detection, distance measurement and much more.
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, first connect the table to avoid sensor malfunction.
Dimensions: 45.4 x 26.2 x 18 mm.