Raspberry PI 3. How can I control a fan to cool the CPU?

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Scope:

  1. Raspberry PI 3
  2. Cooler(max 5V, 0.3A)

The cooler worked very noisy when I connected it to the 5V pin.

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1 Answer

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You could connect it to +3.3V pin instead of +5V pin. That would reduce the fan speed and would also reduce the noise coming from the fan

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