Nekoboy00
Posts: 1
Joined: Thu Nov 28, 2019 1:13 pm

Where to connect my fan?

Thu Nov 28, 2019 1:28 pm

First of all, sorry for my english, it's not my native language bla...bla...
So, I have bought a case for my raspberrypi 4B, and that case includet a fan, and I would like to use it because the pi is getting kinda hot. And here comes the problem: I'm using an breadboard with GPIO Extension Board, means all of my 40GPIOs are sticked into an Ribbon cable... is there a way to get power for the fan from somwhere else? (I don't want to add an battery into the case because it have to be turned off all the time :/)

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mahjongg
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Re: Where to put my fan?

Thu Nov 28, 2019 2:34 pm

Not really without soldering.

If you can solder you can pick off +5V and GND from D1, the protection diode, to the top left of HDMI-0.

or use a "fan shim", which has a loop through connector for the GPIO header.

for example this one: https://www.kiwi-electronics.nl/pim-461 ... gJyJvD_BwE

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Imperf3kt
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Joined: Tue Jun 20, 2017 12:16 am
Location: Australia

Re: Where to connect my fan?

Thu Nov 28, 2019 9:21 pm

Do you have a spare usb port or a hub you can use? You can get 5v through that.
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52:4C:52:42:41

dustnbone
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Joined: Tue Nov 05, 2019 2:49 am

Re: Where to connect my fan?

Thu Nov 28, 2019 10:01 pm

Or extend the fan leads out to the breadboard for now?

sgeorgerobert
Posts: 1
Joined: Wed Dec 11, 2019 1:01 am

Re: Where to connect my fan?

Wed Dec 11, 2019 1:11 am

I was researching this exact issue. Like a previous poster mentioned, a USB port seems to be the best method. The fan shim that is currently available uses pins which may not be compatible with whatever else you're trying to connect.

I believe that a standard raspberry fan's pin connectors should be able to work in this...

https://www.amazon.com/3-Pin-Sleeved-Ad ... B07JW73KVR

Please inform me if that's some sort of mismatch.

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