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  • IanK48 commented on Grathio's instructable Choosing The Resistor To Use With LEDs7 months ago
    Choosing The Resistor To Use With LEDs

    Hi i could really do with some help the leds are 3mm at 20 at 2.0 eight of them i want them in a circle one piece of wiring joining the minus's the other joining the plus's with a res soldered to each led i dont know what type of curcuit this is and im not sure what resistor i need its a 5v input

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