Monday, April 13, 2009

Stepper Motor Notes

All,

Here are a few notes on use of the stepper motors.

1) When wiring the motors to the Motorshield, use the following
color order (at terminals left to right) for the wires:
Orange, Yellow, Red, Black, Brown.

2) These motors appear to be pretty weak. A few ideas to make
them stronger are (a) use DOUBLE stepping in your arduino code,
(b) reduce the friction seen by the motors in your model, and
(c) solder a second pair of L293D H-Bridge chips "piggy back"
onto the first pair - which doubles the current capacity. The
motors are still pretty weak, but these steps helped.

Paul.

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