Anybody have a clue what the problem with the ultrasonic could be be?? We get inconsistent readings all of a sudden. We ordered a new sensor and hopefully it comes in soon. But in the meantime....help please!!!

You're going to have to be more specific, or post sample code for us to help.

I know that a reading of 253 means the sensor isn't attached and a reading of 255 means that the sensor doesn't get an echo.

Never mind. Our code somehow was corrupted by ROBOTC. i dont understand why.