// Set the LED output to the calculated brightness analogWrite(ledPin, brightness); delay(40); } } See Mac Namara’s input curve. Looks like it takes longer to get bright and drops off a bit faster.

You can fade out and fade in the light of an LED automatically by using Arduino and a simple code that is described below. Even though the Arduino board cannot output variable voltage on its digital ...

The Arduino then controls the state of the LED using the active high enable line from the column multiplexer chip. [Alex] wanted more than just a static image to show off on his new display, so he ...