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The TAB Book of Arduino Projects: 36 Things to Make with Shields and Proto Shields by Simon Monk

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CHAPTER 23

Seven-Segment LED Clock

image

This project uses the same real-time clock (RTC) module used in Chapters 21 and 22 but this time with a more conventional seven-segment LED display (Figure 23-1).

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FIGURE 23-1 Seven-segment LED clock.

When the button is pressed, the clock toggles between displaying the time in hours and minutes and displaying the seconds. The time is set automatically when uploading the sketch if the button is pressed during the upload.

 

Parts

To build this project you, will need the following:

 

Protoshield Layout

Figure ...

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