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Step 9Choosing a resistor
If you connected the phone cable wire with the resistors on it, disconnect it again.
With the power on and the 8 edge LEDs in place, touch the tip of the wire from the end resistor on the free cable on the board.
If the LEDs glow a bit yellow, you have too much power and you should add some more resistors. If you are getting a string of them, try some other colours.
If the LEDs glow too faintly try touching the join between the end resistor the next one on the cable. If it is still too faint, keep going back up the chain until they are bright but not yellow. If you get down to no resistors and it still isn't bright, you might need a different phone charger.
Note, you can loop the chain of resistors back around to the wire where they come from or a join to try different combinations. Just play around till it looks good.
Once you find a combination of resistors that seems good, try and tidy it up by just using them.
THE REASON FOR THE 8 LEDS ON THE EDGE:
I first did the board with No LEDS on the edge and when all the pieces were on it was fine. But when I got down to two or three pieces on the board, they started glowing a bit yellow which is bad.
So instead of leaving some pieces on the board all the time, I put some LEDs on the edge. The amount of power used by all 32 Pieces is not like 32 times more than the amount of power used by 1 piece. It is a bit weird. 32 Pieces glow just as bright as 8. 1 Piece on its own glows really bright and wrong looking.
With the power on and the 8 edge LEDs in place, touch the tip of the wire from the end resistor on the free cable on the board.
If the LEDs glow a bit yellow, you have too much power and you should add some more resistors. If you are getting a string of them, try some other colours.
If the LEDs glow too faintly try touching the join between the end resistor the next one on the cable. If it is still too faint, keep going back up the chain until they are bright but not yellow. If you get down to no resistors and it still isn't bright, you might need a different phone charger.
Note, you can loop the chain of resistors back around to the wire where they come from or a join to try different combinations. Just play around till it looks good.
Once you find a combination of resistors that seems good, try and tidy it up by just using them.
THE REASON FOR THE 8 LEDS ON THE EDGE:
I first did the board with No LEDS on the edge and when all the pieces were on it was fine. But when I got down to two or three pieces on the board, they started glowing a bit yellow which is bad.
So instead of leaving some pieces on the board all the time, I put some LEDs on the edge. The amount of power used by all 32 Pieces is not like 32 times more than the amount of power used by 1 piece. It is a bit weird. 32 Pieces glow just as bright as 8. 1 Piece on its own glows really bright and wrong looking.
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