Now is the time to switch to LED bulbs, and the reasons why are vast and compelling. To begin with, LED bulbs last much longer than incandescent bulbs, and they put out the same amount of light ...

Using an arduino UNO , 7v to 12v (4Amps recommended) power source can be plugged on the arduino power plug ... stopping Lot of PWM fans will have a minimum speed but won't totally stop, alternatively ...

There is also a small capacity 12V LDO that is specifically for driving the limit and user switches, as well as optionally providing the base voltage ... In normal operation the blue MOTOR LED will be ...

It is the second iteration, but [William] calls it v1. That’s because v0 — which used a few loops of LED strips — never really met his requirements. This build uses just six LEDs ...