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Adding a fan to your Rasptendo

We are receiving a lot of comments and messages on how to install a cooling fan with your Rasptendo setup that we felt the need to do a post about it. Anyway, here it goes.

Almost all cooling fans that you can buy for the Raspberry Pi make use of Pin 4 (5V) and Pin 6 (Ground) and that they are packaged with the two wires attached together. Unfortunately, Pin 6 is occupied by Rasptendo’s board, thus the dilemma. Fortunately, there are lots of Ground pins in your Raspberry Pi (8 pins to be exact). Seems pretty straightforward, because it actually is, although you have to get your hands a little dirty.

One easy way is that you can buy female to male jumper wires so you won’t need to split the wires. You can buy these in your local electronics store for less than a dollar. Another way is just really splitting the wires.

A female to male jumper wire

The next step is connecting the fan’s ground wire to a ground pin in your Raspberry Pi. You can choose any ground pins in this image. I recommend Pin 39, it’s easy to see so it’s less error-prone.

Note: The ground wire in your fan is usually colored black

7 thoughts on “Adding a fan to your Rasptendo

  1. Thanks so much for taking my suggestion and publishing this guide! You guys are awesome. I’ll be ordering myself a good little fan over the holidays and making use of this guide. Thanks again!

  2. Thank you for this. I connected. You can to the pin 20 ground and it doesn’t turn off when I press the power button. Any idea what I’m doing wrong?

  3. Thank you for this. I connected mine to the pin 20 ground and it doesn’t turn off when I press the power button. Any idea what I’m doing wrong?

    1. Hi Mike, the pin 20 ground is for the fan and not for the power button. Can you upload a photo of your connections?

  4. Thanks for the help. Sorry I wasn’t very clear on my set up. I connected the fans ground to pin 20. I’m not sure my issue is with the fan. When I hit the power button the red light on the pi and the fan stay on. Is there a way for everything to shut down from the power button?

    This is a picture of the my setup…
    https://photos.app.goo.gl/VqwMYnn7sI8xH6Tw2

    1. I’d be interested in this as well. Is it possible to get the fan to shut down when the system goes into sleep mode?

      1. This is something we are looking into since in sleep mode there are still power running through the 5V pins.

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