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Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)

You're reading from   Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications) Learn to design and implement reliable Python applications on the Raspberry Pi using a range of external libraries, the Raspberry Pis GPIO port, and the camera module

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Product type Paperback
Published in Sep 2015
Publisher
ISBN-13 9781783551590
Length 200 pages
Edition 1st Edition
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Author (1):
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Dan Nixon Dan Nixon
Author Profile Icon Dan Nixon
Dan Nixon
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Table of Contents (13) Chapters Close

Preface 1. Your First Steps with Python on the Pi FREE CHAPTER 2. Understanding Control Flow and Data Types 3. Working with Data Structures and I/O 4. Understanding Object-oriented Programming and Threading 5. Packaging Code with setuptools 6. Accessing the GPIO Pins 7. Using the Camera Module 8. Extracting Data from the Internet 9. Creating Command-line Interfaces 10. Debugging Applications with PDB and Log Files 11. Designing Your GUI with Qt Index

Chapter 6. Accessing the GPIO Pins

In this chapter, we will look at the simplest way of interfacing with digital electronics using the General Purpose Input and Output (GPIO) port on the Raspberry Pi. To do this, we will be using the RPi.GPIO module, which is installed as standard on the newer versions of Raspbian.

We will also take a quick look at some of the basics of digital electronics and the additional methods of communication offered by the Raspberry Pi, including UART.

Note that some of the examples later in the chapter will require some additional electronic components, all of which can be purchased from standard high street electronics retailers.

The components required are:

  • A small breadboard
  • Some 0.1" male to female jumper wires
  • A push to make a switch
  • Some LEDs
  • The appropriate resistor for the LEDs

The exact value of the resistor can be calculated using an online tool, such as the one found at ledcalc.com. Here, the supply voltage should be 3.3V, the LED current should...

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