DJ Sures demonstrates how to connect an Ultrasonic Ping Distance Sensor (HC-SR04) on the EZ-B. He uses the Ping Radar Control and a Tamiya Bulldozer kit .brbrRelevant Tutorials: - PWM: In the 10th Tutorial we take a look at the HC-SR04 ultrasonic sensor. The sensor is a four pin device .brDJ Sures demonstrates how to use Facial Tracking with EZ-Builder on the EZ-B Robot Controller. His hacked Omnibot helps him out. The facial tracking for the .brDJ Sures demonstrates a few simple methods of adding the Voice Recognition Control in EZ-Builder to your robot. He controls a single servo and an iRobot .