UltraPing is designed to provide a straightforward way to interface with common ultrasonic distance sensors like the HC-SR04. Its primary design goal is timer safety. Unlike more advanced libraries ...

Ultrasonic Sentinel KiwisIoT is an IoT-based distance monitoring project built using an ESP8266 NodeMCU and an HC-SR04 ultrasonic sensor. The system measures the distance between the sensor and a ...

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried/Ladyada for Adafruit ...