Read the statement by Michael Teeuw here.
Fan control
-
or just a 12v supply with a relay that reacts to the 3v/5v output of the raspberrys gpio …
or just a relay if you already have the 12v supply.
-
@broberg thx for your input. As mentioned above, i wanted to avoid using a relay to have a silent system
-
@bibi fan controllers are cheap.
or get 5v fans?
-
@broberg have already a 5v fan… i am rather interested in gaining knowledge about transistors by building a “project” to cool down my whole MM system.
-
Here is a great system. Fully automatic and silent(ish) with variable control. Took about 5 minutes to make a small board with the resistors and diode and the code is already done.
[link text]https://www.instructables.com/PWM-Regulated-Fan-Based-on-CPU-Temperature-for-Ras/(link url)
-
@bibi
I use this one
https://www.elektor.nl/fan-shim-active-cooling-for-raspberry-pi-4works ferry well
