Fab Academy 2014

Module 13 – Output Devices

Class

Class Outline

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M.

In Class Tutorials

The Assignment

add an output device to a microcontroller board you've designed and program it to do something.

The Project

I want to drive a stepper motor.

I actually did start to have a look at this in the embedded programming assignment.

I followed Guillem's recommendation to use MOSFETs. I do like this solution because this gives me a clear understanding of what goes on, and will help get more controle as to how drive the motor.


Stepper Motor Mosfet Driver with leds.

Basic Hardware and Software

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Stepper Motor driven by Mosfet board a 2 [9V. Batteries] from Matthieu on Vimeo.

Looking ahead

I'm thinking maybe I could use the motor in combination to the Mechanical Design assignment to make a simple clock. All I need from this side is to pace my motor at 1RPM, and the tricky part will be on the mechanical side...

Stepper motor turning at 1 rpm - note the leds that indicate which pole of the motor is stimulated.

Downloadables

[ download CODE file: "MotorSequence.ino" ]

That's all Folks.