EZ Fan2 is a tiny PCB for controlling small cooling fans or other motorsDesigned by Jeremy Cook Consulting LLC in United States of America
What is it? PCB originally designed to control cooling fans on Raspberry Pi boards, but can be used with other small motors or DC loads. Includes a flyback diode to safely dissipate inductive volta...Read More…
PCB originally designed to control cooling fans on Raspberry Pi boards, but can be used with other small motors or DC loads. Includes a flyback diode to safely dissipate inductive voltage spikes.
Can also work with Arduino and other such dev boards.
Wanted a way to control cooling fans off of a Raspberry Pi. While some fans have PWM inputs, some do not and cannot normally be controlled. This transistor board works well with the GPIO fan control option in Raspberry Pi OS (which turns it fully on and fully off).
Not a full motor driver (i.e. it only drives in one direction) but can be used with other simple DC motors as well. Includes a resistor and flyback diode.
It's very, very small, even compared to a prior THT version. It should therefore be able to fit inside nearly any case. The optional 90º headers are even spec'd out to be low profile.
Boards come fully assembled with or without headers depending on the option selected, and appearance of the boards may vary. Options also available for female-female wires as needed, and/or clear heat shrink.
Uses a surface mount 2222 transistor which is capable of passing .6A. Therefore not suitable for large loads, but capable of much more than the Pi's native outputs (or Arduino and other such boards). Transistor may become hot when supplying power, and should likely be derated when used with heat shrink. See notes/precautions starting at ~ 6:40 in video.
The video shows how to set this up in Raspberry Pi OS, but you can also use the script found here to have it check the temperature once per minute and react accordingly. This may be advantageous in some situations.
the board's input ground and GPIO input have been swapped (see connection images). New boards are black, and marked as such. This will be different than in the current video. This allows for easy alignment with the Raspberry Pi 5V, Ground and GPIO14 pins if you choose to use that particular setup.
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|Shipping Rate||Tracked||Ships From||First Item||Additional Items|
Robert | Sept. 22, 2021
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