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Light Up LED Smiley Face (with reusable parts)

Step 4Put the LEDs in the board

Put the LEDs in the board

Put the LEDs in the holes in the IC board. Make sure the polarity (+ and -) are lined up to solder a wire between all the + and - pins. Double check this. Have someone else double check this. If you mess up the polarity, you blow up your LEDs (bad).

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Author:Kateham