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 ...

This program is useful for creating an energy-efficient lighting system that responds to motion, such as a hallway or security light, with adjustable brightness and automatic turn-off features after a ...

#Pulsating Lamp We are now going to delve further into a more advanced method of controlling LEDs. So far we have simply turned the LED on or off. How about being able to adjust its brightness, too?

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...

In this tutorial, I will show you how to control the brightness of an LED or the speed of a DC fan using an Arduino board, a BC547 transistor, and a potentiometer. Follow along for a step-by-step ...

In a previous article, I discussed LEDs in general and their properties. In this write-up, I want to give some examples of driving LEDs and comparing a few of the most commonly used methods. There is ...

On this week's show we discuss Mellow Labs' fantastic washing machine hack, adding an automatic detergent dispenser with custom controls and empty detector built into the machine! The show is now live ...

If you searching for an LED matrix for your next project or to add to an existing application you may be interested to know that the Maker LED Display is now available to purchase from the Crowd ...