Step 7: Adding Insulating Foam

This step is actually optional but I would recommend you do it because it will insulate your electrical connections and make everything much safer. Follow these steps:
  1. Using hot glue, glue your power adapter wire to the circuit board.
  2. Find some craft foam and cut out a piece the same size as your circuit board. If you can't find any craft foam you can use cardboard.
  3. Using lots and lots of hot glue fasten the foam to the circuit board. I glued in the middle, pushed on the foam, and then squirted glue into the edges.
And now you have a nice lighting module for the inside of your PC. Go to the next step to see some pictures of this in operation.
is the number of LEDS neglectable? is it ok to create more than or less than 8? <br> <br>#newbie
you can have any number you want, as long as it's a multiple of 4 <br>
nice project but it's a stripboard not breadboard
Nicee idea i could make one of this.
It's near essential to put a series current limiting resistor in the circuit, even though you're dropping all twelve volts. You're going to get a very large current draw without the resistor.
thewizard42 is actually correct, you should use a resistor. Technically, you should use a constant current power supply, but a resistor will usually work in most situations. Also, (now replying to nurdee1's comment) the LEDs are most likely not drawing only 5mA, expect them to draw 20-25mA a piece.
Also, I have been running this in my computer for a couple of weeks and everything works fine.
I don't think I need a current limiting resistor. I hooked this up to the computer and measured the current it was drawing and my ammeter only read 5 milliamps. ???????????????? <br> <br>

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