Emil has written a post on improving the HC-SR04 ultrasonic sensor. Via the contact form.
Tag Archives: ultrasonic sensor
Tutorial: using Ping ultrasonic sensor with Arduino
Tronixstuff has posted a tutorial explaining how to use the Parallax Ping sensor with Arduino. The Ping is an ultrasonic distance sensor from Parallax which retails or about $30. This segment is the latest in a series of Arduino tutorials posted by Tronixstuff.