Arduino 'E'
Using the Arduino to control a 7-segment LED via a 3:8 multiplexer. Rapidly switching between lit segments allows for the display of individual characters. See an annotated version of a similar circuit. NB: the DIP switch shown here is not actually hooked up. The Arduino's taken its place as inputs to the decoder.
You can see video of this setup spelling out the world 'hello' and one of it being used with different software to animate a single segment around the display, as well.
Arduino 'E'
Using the Arduino to control a 7-segment LED via a 3:8 multiplexer. Rapidly switching between lit segments allows for the display of individual characters. See an annotated version of a similar circuit. NB: the DIP switch shown here is not actually hooked up. The Arduino's taken its place as inputs to the decoder.
You can see video of this setup spelling out the world 'hello' and one of it being used with different software to animate a single segment around the display, as well.