I finished making my PWM fan and lighting controller. It has 8 fan channels and 4 lighting channels (1 dedicated to the fan lighting). The fan LEDs are connected to separate headers from the fan itself.
First: the circuit I used
Installed 1 fan control channel to work out the layout
Here in the US I wasn't able to find anyplace that had the MIC502 fan control IC available in a DIP package; so I had to make due with the SMD version
Soldering on leads
1 DIPicized IC
All eight channels integrated on the PCB
Added power supply as well as headers for the fan LEDs and fan LED switch
Also installed headers for the case lighting control
And a pass-through MOLEX connector
The underside of the controller
The wiring for the power connectors will also be sleeved later on in the project.
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