robot with 3 ultrasonic sensors

Using Arduino Sensors
1

hello,

I have an arduino uno and 3 HC-SR04 ultrasonic sensors.
How can I connect all the 3 sensors to the arduino uno?

searched of the whole web but couldn't find the answer..

thanks.

2

Look at the ping example that comes with the IDE. Your device may not share the trigger and ping pins and if so, you'll need to adjust it a little. Get it working with one sensor and then adding two more is just a matter of repeating the same thing with different pins. Be aware that if you try to use them at the same time (or close to it) they will interfere with each other.

3

http://code.google.com/p/arduino-new-ping/