CHAPTER 5
Display Projects
THIS CHAPTER IS ALL ABOUT displaying data using a variety of devices, such as a four-digit LED display and a 16×2 character LCD display. If your project involves a lot of statistical information from sensors or other devices, it is always a good idea to display the information on a small display instead of outputting the information to the console or over SSH.
Project 197-Segment Clock
This project uses a four-digit 7-segment LED display to show the current system time. A 7-segment display is great for displaying decimal digits and is generally inexpensive. It’s called a 7-segment display because—well, you guessed it—it has seven segmented LEDs on the interface. Figure 5-1 details how the display is labeled, from ...
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