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Comment: Yes. A single paper towel (the blue shop kind).
Comment: A resistor is needed for an LED for a USB supply. Some LED's come with the resistor bui…
Comment: I agree. Knowing the math is important and will help you in the long run especially in …
Comment: I know the math. I just don't like dividing decimals, digging for a calculator and maki…
Comment: I got mine directly from their site. Other places sell it but from what I googled, it w…