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AndrejaKo earned this badge 4 times
apr 25 at 11:41Why exactly 470 or 1k Ω? (to prevent damage of output pin)
feb 7 at 5:58Have I understood what Arduino is correctly?
dec 29 '11 at 16:40Resistance Vs Impedance?
dec 4 '11 at 7:39Why do you need 2 resistors when hooking up a transistor as a switch