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Embedded and Microcontrollers
Embedded Forum Spinning LED ball (RGB) HELP!!
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Related

Spinning LED ball (RGB) HELP!!

Former Member
Former Member over 15 years ago

Hi all,

 

Does anyone know what the components list and plans are for this project?

Or can anyone find them?

 

http://www.youtube.com/watch?v=uOPQzrA2OZ8

 

It seems like an interesting project to try.

 

Cheers,

Chris

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  • Catwell
    0 Catwell over 15 years ago

    This project doesn't look like one of those spinning wheels that displays an image or text, so it should be fairly easy to accomplish.

     

    PWM of two motors.

    Control 3 LEDS, and you don't have to do any major timing calculations of them either.

     

    That's it. I'm just curious about the coupling used to control and deliver power to the LEDs while spinning. Let me know if you find out how they do it.

     

    Cabe

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  • Jorge_Garcia
    0 Jorge_Garcia over 15 years ago in reply to Catwell

    Hi Cabe,

     

    He using slip rings to deliver power to the LEDs, they're similar in concept to how a DC motor commutates power to it's windings. Google slip rings and you'll get enough info to understand what they are.

     

    Best Regards,

    Jorge Garcia

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  • Jorge_Garcia
    0 Jorge_Garcia over 15 years ago in reply to Catwell

    Hi Cabe,

     

    He using slip rings to deliver power to the LEDs, they're similar in concept to how a DC motor commutates power to it's windings. Google slip rings and you'll get enough info to understand what they are.

     

    Best Regards,

    Jorge Garcia

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  • Former Member
    0 Former Member over 15 years ago in reply to Jorge_Garcia

    Cheers Jorge,

     

    That was a lot of helpful information thank you. Here is some more information. Think it says that it's done through electromagnetism. I still don't fully understand it but I will after I read it a few times. I have a bit of a sick head after last night  image.


    Source: http://www.gcsescience.com/pme18.htm

     

    Regrds,

    Chris.

     

     

     

     

     

     

     

     

     

    A simple generator is similar to an electric motor.
    With a motor, we put electrical energy in and get rotational energy out,
    with a generator we put rotational energy in and get electrical energy out.

    http://www.gcsescience.com/Current-Generator.gif

    As with the motor, the current direction changes
    with each half turn of the generator.
    The generator produces alternating current
    because slip rings are used in place of a split - ring commutator.

     

    The slip rings keep a continuous connection
    with the wire around the armature (continued).

    If a simple electric motor with a split - ring commutator
    is used to generate electricity, you do not get alternating current.
    A different type of electrical output is produced.

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