I normally use three sensors, one facing directly forward, and two to the sides, between 10 and 45 degrees out. Because you are moving, the sensors read a large area. Report comment ...

It’s an Arduino board that has rows of holes at either end to make it LEGO compatible. ... At the top of the assembly is an IR distance sensor which is used for obstacle avoidance.

The ArduIMU Quascopter is a DIY Arduino helicopter than has been designed to avoid objects and not bump into things. The helicopter features four rotor and some infrared sensors. It uses four ...