Robot Micro Servo Arm

This is a Robot Micro Servo Arm that I want to use to learn about servo motors. Probably I'll be making the hole robot and this could be the left arm of that robot.

I used 3 TowerPro SG90 servo purchase on dx.com (the third I thing I'll be using a grip or something.

This are the specifications:

- Operating speed (4.8V no load): 0.12sec/60 degrees
- Stall torque (4.8V): 2kg/cm
- Temperature range: -30 to +60'C
- Dead band width: 4 usec
- Operating voltage: 3.5-8.4 volts

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