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Descrição
Found the Micro Servo Robot on letsmakerobots.com. I thought this little thing was awesome but wanted a 3D printable version that would pick up marbles instead. Plus, I only had 10k potentiometers which seem like they would work better with 3D printed parts anyway. Here is the link to the project I derived this from: http://letsmakerobots.com/robot/project/micro-servo-robot.
Update: Added Arduino program with English Comments.
You will need: 4 - SG90 Micro Servos 4 - 10k potentiometers 1 - Arduino Uno with Breadboard shield Misc wire and some marbles!
Enjoy!!!!!!!