Last time I used an HC-SR04 with a Teensy, I just wired the TRIG and ECHO pins together and told the NewPing Arduino library to use the same pin for both functions. I’m not sure where I read ...

TK has come across a quick tool that allows you to interface with a HC-SR04 ultrasonic transducer. In this post, he digs into the schematics of the ... my intent is not to provide a new translation of ...

[Arduino and HC-SR04 photo from Blax Lab] Posted in Arduino Hacks, Holiday Hacks, Software Hacks Tagged arduino, HC-SR04, Parallax Ping, ultrasonic, ultrasonic distance sensor.