How It Works: A bar graph is a series of LEDs in a line. It’s made up of a row of LEDs with an analog input,which is a potentiometer. The Sketch The sketch first reads the input from the potentiometer ...

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Take a gander at the Giant LED bar graph which [Chunky Hampton] recently completed (from this image we don’t think the nick name suits him). It’s simple both mechanically and electrical… ...