April 2018
Beginner
552 pages
13h 58m
English
book
Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
by Steven Lawrence Fernandes, Tim Cox
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
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Using your own I/O expander module
You can use one of the I/O expander modules that are available (or just the MCP23017 chip in the following circuit) to control most HD44780-compatible LCD displays:
The I/O expander and a HD44780-compatible display
The D-Pad circuit, using Python-to-drive hardware, can also be connected to the remaining port A pins of the expander (PA0 to button 1, PA1 to right, PA2 to down, PA3 to up, PA4 to left, and PA5 to button 2). As in the previous example, the buttons will be PA0 to PA4 (WiringPi pin number 100 to 104); apart from these, we have the second button added to PA5 (WiringPi pin number 105).
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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.