[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. Originally he modified the Arduino library ...

Taste The Code Pellet Level Monitor for Home Assistant with HC-SR04 and ESP8266 Posted: May 6, 2025 | Last updated: May 6, 2025 Hi, I'm Bill. I'm a software developer with a passion for making and ...