I´ve added two ultra sound sensors and now I´m trying to make this bot a wall racer. Due to its drifting capabilities it’s being very hard to code this, but I will find a way to do that.
I´ve replaced the 4 AA batteries by a small 7.2V battery and now he has more power which also means more nerves.. :D
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So, after a couple of hours of trying and trying, I quitted, and decided to relax and enjoy some drifts..