Ultrasonic sensors are used to detect the presence of obstacles, calculate the distance to these obstacles, and relay this information to the driver through visual and auditory cues. This research ...

One way to accomplish this involves four HC-SR04 ultrasonic sensor units that transmit data through an Arduino into a Linux computer. The end result is a virtual touchscreen that can be made at home.

Posted in Arduino Hacks Tagged adafruit wave shield, arduino, ultrasonic, ultrasonic distance sensor, wav shield ← Fabricate Your Own 7-Segment Displays Easy Capacitive Touch Sensors In Eagle → ...