November 2014
Intermediate to advanced
400 pages
7h 30m
English
Content preview from The TAB Book of Arduino Projects: 36 Things to Make with Shields and Proto ShieldsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CHAPTER 22
Binary Clock
This project uses different colored LEDs to display the time. However, it displays the time in binary, with a 1 being indicated by the LED being lit (Figure 22-1).
FIGURE 22-1 Binary clock.
Binary
The decimal numbers that we usually use have 10 possible digits in each position. That is, each digit is between 0 and 9, and if we need a number bigger than 9, we add another digit that counts in 10s rather than single units.
Binary only has two possible values in each digit position—a 1 or a 0. Therefore, this means that ...
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