Making sure I don't fry with a 12V power supply

Forum 2005-2010 (read only) General Frequently-Asked Questions
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Then I'll use the PWM pins to switch the blowers and I should be golden (famous last words).

As long as you use a proper switching transistor (with base resistor)between the Arduino PWM output pins and the 12vdc blowers. :wink:

Lefty