Open Source Rack fan controller

Hi,

I just wanted to share my project. Maybe somebody wants to over-engineer a home lab rack. :sweat_smile:

My 15U rack is in the living room, filled with heat sources (~250W average). The goal was to keep everything cool, but also quiet. I started with a fanpico board and I had to use the power board to make it compatible with already installed 5V fans (2x 120 mm and 1x 200 mm Noctua).

Since I had to use 5V, I included my dig2go LED controller.

https://github.com/hunordori/rackpico


Features

  • can control 8 PWM fans (4x 5V and 4x 12V)
  • I can set custom fan curves based on the fan’s location
  • can be monitored via a web UI or Home Assistant

BTW, it was my first soldering job. It is probably overkill for a home lab, but I am planning to use it in custom (video) rack builds.

2 Likes