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SamIchi

macrumors 68030
Original poster
Aug 1, 2004
2,716
137
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?
 
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?
 
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
 
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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