Electrical people, a little help with a chess set project.

Discussion in 'Community Discussion' started by SamIchi, Jan 22, 2009.

  1. SamIchi macrumors 68030

    SamIchi

    Joined:
    Aug 1, 2004
    #1
    I'm making a chess set for class, and I wanted mine to glow with LEDs. I wanted to have a LED in each piece and when it was placed on the board it would light up. I don't know about this electrical stuff but I learn quick. I found some tutorials online, but look a bit complicated.

    They use an AC power supply, but I was thinking maybe I could power it with small watch batteries. If I placed a battery on each square of the chess set, would that be sufficient power to light one LED up?
     
  2. VPrime macrumors 68000

    VPrime

    Joined:
    Dec 19, 2008
    Location:
    London Ontario
    #2
    Watch battery should be fine. LEDs require very little power.
     
  3. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #3
    LEDs use AC? That's not good, since batteries are DC ...
     
  4. juanster macrumors 68020

    juanster

    Joined:
    Mar 2, 2007
    Location:
    toronto
    #4
    yes watch battry should be fine to light up one at a time
     
  5. SamIchi thread starter macrumors 68030

    SamIchi

    Joined:
    Aug 1, 2004
    #5
    How long would they last? The only problem I can think of is that if one goes out you would have to replace it.

    What kind of batteries should I use? Size? Voltage?
     
  6. juanster macrumors 68020

    juanster

    Joined:
    Mar 2, 2007
    Location:
    toronto
    #6
    the led is just an indicator of current going thru, (one way not the other) so pretty much any battery you put on it will light it up,, if its a big one, you mayy maybe maybe,,(i doubt it) have to ut a small resistance before it.. but that's all...someone else more knowledgeable will let you knwo fro sure
     
  7. SamIchi thread starter macrumors 68030

    SamIchi

    Joined:
    Aug 1, 2004
    #7
    Anyone else want to chime in? I was trying to figure out how to have the neg and pos touch the bottom of the chess piece.
     

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