How It Works: A bar graph is a series of LEDs in a line ... If the output number of the LED in the series is lower than the mapped input range, the LED turns on; if not, it turns off.

We are introduced to output using an LED bar graph, a seven-segment display ... First we learn the basics of using the Arduino Ethernet shield to connect your Arduino to a network.

Take a gander at the Giant LED bar graph which [Chunky Hampton] recently ... but in this case it’s an Arduino. [Chunky] uses the meter to display power output from his stationary bicycle generator.

How It Works: A bar graph is a series of LEDs in a line ... If the output number of the LED in the series is lower than the mapped input range, the LED turns on; if not, it turns off.