This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

One of the great things about home automation is that it’s limitless. Whether you add more smart locks, toss some smart light bulbs into lamps, or add another smart thermostat to your home, it’s ...

[Dave] just couldn’t take the ambient noise from his Lulzbot Mini anymore, so he built a fancy fan controller for it. He measured some points on the printer’s Rambo controller board to see what ...