Active Cooling 5v brushless fan with Motor Speed Controller soft PWM
#13
Pardon my ignorance regarding electronics, but why do you need a transistor? Is it because the fan needs 5V but the GPIO is only 3.3? Also why is a resistor required?

Thanks,
Chris
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RE: Active Cooling 5v brushless fan with Motor Speed Controller soft PWM - by psychedup - 02-04-2017, 07:35 PM

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