In this arduino tutorial I explain how to work with the 4 digit 7 segment led display, and the difference between the four digit display and the one digit display, and how you can connect four one digit display to work just as the four digit one. I then show how to multiplex the common pins to be able to write different numbers to each digit. To see how the numbers are made watch Anything Arduino Episode 7 where I make the arduino sketch that we use and alter in this video.
Link to Anything Arduino Episode 7, working with the 7 segment LED display:
All episodes of Anything Arduino:
To download sketch files go to duinos.net: