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RC boat with "out of this world" RGB LED lights

Description: Using an Arduino or a micro controller, we can generate cool-looking patterns with an led strip containing ...
EDN

The LED Brightness or Fan Speed with Arduino – Tutorial #7

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 ...