HC SR04 ultrasonic sensor library for using on Arduino IDE. The present library is oriented to an specific configuration of the HC-SR04 sensor, the reset option differs from other librarys due to the ...

Initialization Prepare the Arduino board and connect the HC-SR04 sensor to the appropriate pins. Set up communication channels (e.g., serial monitor or IoT platform) for displaying or transmitting ...

A common combination is the HC-SR04 sensor and the Arduino Uno microcontroller, which are both inexpensive and easy to use.

[Clint] was working with the Arduino library, based on the Parallax PING, which uses a single pin for trigger and echo. The HC-SR04 uses separate pins.

We’ve seen Parallax PING projects for sensing water depth and to generate music. These could be hacked to use the HC-SR04 using [Clint’s] techniques. [Arduino and HC-SR04 photo from Blax Lab] ...