And in case you don’t know – LED is kind of mini light bulb. A small component that creates light.
There are two ways to change the brightness of the LED:
* Change the resistor value
To change the brightness by adjusting the resistor value just add a potentiometer in series with the LED. When you adjust the knob of the resistor, the brightness of the LED will change.
* Turn it on and off fast
Another method is to turn the LED on and off fast. Maybe a few hundred times per second. Usually you want to use a microcontroller for this. By adjusting the percentage the LED is on versus off it will appear to the eye that the brightness changes.
That’s today’s tip. Now enjoy your weekend. And I hope you will have time for some tinkering with electronics.
To get started building simple circuits like blinking lights and sirens I recommend my eBook «Getting Started With Electronics» which you can find here:
Keep on Soldering!