I have searched the forum and read several posts about controlling DC fans via VDM but it is still not clear to me so I would like to ask the experts to help clarify things for me.
I have 4 DC fans over my tank to help with cooling. Currently, these fans are being powered by an adjustable voltage universal ac-dc adapter. Fans will run from 3v all the way to 10v. Fan speed varies depending on the voltage.
My goal is to control the speed of these fans with the VDM module depending on the temp of the tank. I tried connecting these fans to the vdm module directly but fans wont turn on even at 10v output from the VDM (output confirmed via digital multimeter).
What do I need to make this work?
Thanks in advance!
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