Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s a slew ...

In this experiment we are going to use a element called photoresistor. This sensor allows us to interact with the external environment, through intensity of light. The photoresistor is based on light ...

Discover how to build a simple and effective external LED light for your smartphone with this hands-on tutorial. Using a 3.5mm audio jack from old wired earphones and a small LED, create a practical ...