Good enough
It works as expected and is reasonably quiet. The mounting screws were way too long but that could be useful in other applications, and I have a rather natty screw shortening tool.
Peter Cusack
Adafruit
Miniature 5V Cooling Fan for Raspberry Pi (and Other Computers)
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Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling Fan and prevent your hard-working Pi from overheating! Of course...
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Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling Fan and prevent your hard-working Pi from overheating! Of course, it's also great for use with any small computer or FPGA or motor driver or anything that needs cooling.
Plug the fan directly into your Raspberry Pi's 5V+GND GPIO power pins, as shown, for instant cooling! Place in your case, or even better, on top of your Pi's CPU to give it extra air-flow.
Compatible with any and all Raspberry Pi computers but only the Pi 3 runs hot enough to benefit from any cooling, when doing intense computations.
Note that you do not need a fan for your Pi, as it will automatically adjust its speed to avoid overheating, this is just for people who want to run it at top speed for a long time.
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
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