April 2014
Beginner to intermediate
392 pages
14h 57m
English
Content preview from Make: More ElectronicsBecome 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 25. Experiment 25: Enhancing Your Adder
Adding a decimal output to your adder is an easier task than adding a decimal input, so I’ll deal with the output first.
Return of the Decoder
It would be nice to have a couple of seven-segment numeric displays for the output, but they require drivers that use binary-coded decimal (BCD) inputs. In other words, the input to each driver must range from 0000 through 1001 binary (0 through 9 decimal). Your adder has an output ranging from 0000 through 1110 binary, and converting that to run a pair of seven-segment numerals is not so easy.
Therefore, I’ll assume you can be happy with individual LEDs, each of which will represent a decimal value.
To take care of this, we can use the 4-to-16 decoder that you ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.