I have connected fan (5V, 0.2A) to raspberry pi 3 on pins 2 and 4. When I turn on raspberry, fan doesn't work. Does fan should start with turning on raspberry? Or I have to setup some configuration to get fan working?
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Power is available on pins 2 and 4 while the Pi is powered.– joanCommented Oct 28, 2016 at 8:07
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@joan PI is powered, but fan doesn't work...– poletn23Commented Oct 28, 2016 at 8:24
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Doesn't that answer your question?– joanCommented Oct 28, 2016 at 8:26
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I don't know, maybe fan is faulty. Or pins are faulty...– poletn23Commented Oct 28, 2016 at 8:28
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1 Answer
According to the official pin diagram, pin 2 and 4 are both 5v.
Try to connect with pin 2 (5v) and pin 6 (ground).
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Note that many 5V fans work with 3.3V, providing sufficient cooling while making far less noise. So it's worth a try to connect it to pins 1 and 6 as well. Commented Oct 28, 2016 at 9:07
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Thank you @lara-maia. It sounds logical, I have red and black wires on fan. Can I also connect pin 4 and pin 6?– poletn23Commented Oct 28, 2016 at 9:07
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@poletn23 Yes, pins 2 and 4 are interchangeable, so you can use 4 and 6. Commented Oct 28, 2016 at 9:08
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