If we asked you to light up an LED using an Arduino, there’s a good chance ... Finally, arrange the LEDs in an attractive circle around a potentiometer. Wait, how are you going to do that?

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 ... Do not power the ...

Here is a simple, yet useful circuit of an Arduino 4-digit 7-segment LED display unit. The module used here is ... D13 of the Arduino is reserved for the decimal point segment. The 10K potentiometer ...

[Alex] needed a project for his microcomputer circuits class ... it looks like multiple LED’s are lit up simultaneously. [Alex] planned to use an Arduino to control this display, but it ...