Very low-cost Robotic tool -The Servo Tester.

It is a very low-cost device at less than Rs 200/- absolutely required for testing small servo motors. It is. a must device for hobby robotics. It is basically to both test and ensures the center position ( at 90 degrees) of a (non-continuous spinning only ) small Servo Motor which is very important for robotic applications as, the unit that is procured from the market, its shaft may not be in the center position. Thus if used without fixing its shaft position in the center, for any robotic application, say a humanoid biped, hexapod, pick and place, gripper, claw, etc during assembling,  then it gives erratic operation at the time of switch on even if the programming is correct. 90-degree position of the shaft is the center position where from the non-continuous servo shaft moves exactly – 90 degrees…

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