- Joined Feb 13, 2007
so I want to build a fan bus for my computer. I want it to have a 3 position DPDT switch(on-off-on). with the switch in the up position the fan gets 12v, switch down, 5v. with the switch in the center position I want to control fan voltage with a variable resister from 0v to 12v. now heres the kicker, i want LEDs above and below the switch, hooked up to a temp probe. when its over a set(adjustable) temp the red LED blinks, under a different temp, the blue LED blinks. I know next to nothing when it comes to circuit design, can anyone help? links to DIY projects would be awesome. Thanx.