RangeFinders: IR vs. Ultrasonic

[Colin Small]

Originally Posted by electroken

Look up the data sheet for the MB1240 and you'll find it has a very narrow beam angle. In fact, it's the most narrow of any of their sensors. What that means is if it isn't aimed right at the wall you'll get very little signal back.

The angle of incidence = the angle of reflection, and all that.

I know, but all it's going to be used for is to aim at the wall. That's the reason I chose the MB1240. I don't want interference from other robots.