Here is a simple Arduino Camping Light project. In this design, only one push button switch is used to control the light output (from a bunch of white LEDs) between off, dim, medium, and full ...

The decimal number increases from 0 to 255 each time the momentary push-button is pressed ... and how I’ve connected the 8 leds + resistors and 1 button + pull-up resistor to the Arduino Board (this ...