[mixmax]

Copenhagen Suborbitals do thrust vectoring, and if I remember correctly the 4 jetvanes are controlled by an arduino .

The software is written by one guy in his freetime. Pretty amazing feat, considering how difficult it is, and that he has no way of testing it before the actual launch. It worked flawlessly the first time.

Here's a video of the Nexø 1 launch that uses the system to control the rocket on its ascent.

https://www.youtube.com/watch?v=8iTg55Ktkn4

This video shows some technical data streamed live from the rocket that gives a good overview of what the jetvanes are doing. Notice the graphic in the lower left corner; The H in the middle is the floating launch platform (12x14 meters) and the moving red dot is the position of the rocket in the X-Y plane. On the whole trip it never moves more than a few meters from the center. Really impressive stuff...

https://www.youtube.com/watch?v=Km7-2Ds6_Xs

I know it's not exactly what you're asking, but it's close, so I thought it might have some value.