Recommend a micrcontroller for motor control?

Discussion in 'General Electronics Chat' started by fastwalker, Feb 25, 2010.

  1. fastwalker

    Thread Starter Active Member

    Jun 24, 2009
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    Hi All,

    I have a DC motor control project coming up. I'm open to the brand of microcontroller to use. Can anyone suggest a uC which provides some type of motor control onboard in hardware?

    Thanks,
    FW
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    A hard questions to answer. If this is school project you should use the uC that your school support. If this this is a hobby project you are more free to choose. Can you tell us more about what you plan to do?
    I guess you will end up with two alternatives. And that will be Microchip and Atmel. I am a Microchip person my self because I think the the Microchip tools are somewhat better. And the Pickit programmers are rock solid, and give a lot of value for the money. And I can easy get Microchip uCs. And availability is important for the hobbyist. But both Microchip and Atmel has both pro and cons. So I would say they are quite equal.
     
  3. fastwalker

    Thread Starter Active Member

    Jun 24, 2009
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    Thanks for the response. The project is to move a DC motor for solar tracking of a small array. I'd like to have variable speed drive, implemented perhaps by hardware PWM on the chip.

    I was thinking of either PIC or Atmel too, haven't researched them enough to sway my decision either way.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
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  5. steveb

    Senior Member

    Jul 3, 2008
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    TI makes some with built in motor control hardware.
     
  6. ViperRunner

    Member

    Jan 30, 2010
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    Last edited: Feb 26, 2010
  7. ViperRunner

    Member

    Jan 30, 2010
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    Maybe make a motor driver circuit like the ones of the links i gave you, and putting a sensor that stops the motor from turning when it catches the angle where the photosensor catched the higher temperature (meaning where the light is strongest)

    it's a relativelly simple circuit, the work you will have more is maybe searching or making a software to control the motor.. or if you want to skip the control of the speed of the motor, you can give it a fixed slow speed and make it simply search for light untill ends one round, and when it ends a round without finding the minimum light you configured the photosensor to catch (meaning it's dark now) you put on the circuit a timer that says when it will search again, say for example after 10 hours, when it's morning and it will find light again..

    i'm saying all this in theory, but i don't know how to put all of this in practice, so sorry for not being of more help!
     
  8. t06afre

    AAC Fanatic!

    May 11, 2009
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    Many Microchip uC do have a PWM module. Some has even two. A PWM module is very often used in motor control
     
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