I'm making a laser to turret for my cats, using an Arduino Pro Micro, two servos and a laser. I'm having a hard time simulating the flight of an insect, I tried with an implemetation of a Brownian motion algorithm with no luck.
Is there something implemented in C that I can use with the Arduino?
CharlieM:
I tried with an implemetation of a Brownian motion algorithm with no luck.
The cats knew somehow? 
Hahaha, no about Brownian motion! But I noticed that if the movements are too erratic they get bored faster than if there is some kind of pattern.
Check out the Levy flight algorithm, characterized by a long and short trajectories, with random movements akin to those found in turbulence.