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Thread: Double check

  1. #1

    Default Double check

    Need a little help. If I have done the table correctly I should need a 1 ohm 2 watt resistor on my activation switch. I have a Nano Biscotte v4 with the 18650 3.7 volt battery with the 2 neopixel strips. I just want to make sure I am correct on this any help would be greatly appreciated.

  2. #2


    Is there an LED in your switch? If so, what color? If not, then you shouldn't need a resistor.

  3. #3


    Unless you are doing something pretty interesting, the LED in the activation switch should only be 20ma, and you would only need a 1/8watt resistor (actual dissipation is about 0.01 - 0.04 watt, depending on the color)

  4. #4


    I’m using a 2 prong momentary switch that comes with the graflex kit.


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