Book Image

Raspberry Pi Computer Architecture Essentials

By : Andrew K. Dennis, Teemu O Pohjanlehto
Book Image

Raspberry Pi Computer Architecture Essentials

By: Andrew K. Dennis, Teemu O Pohjanlehto

Overview of this book

With the release of the Raspberry Pi 2, a new series of the popular compact computer is available for you to build cheap, exciting projects and learn about programming. In this book, we explore Raspberry Pi 2’s hardware through a number of projects in a variety of programming languages. We will start by exploring the various hardware components in detail, which will provide a base for the programming projects and guide you through setting up the tools for Assembler, C/C++, and Python. We will then learn how to write multi-threaded applications and Raspberry Pi 2’s multi-core processor. Moving on, you’ll get hands on by expanding the storage options of the Raspberry Pi beyond the SD card and interacting with the graphics hardware. Furthermore, you will be introduced to the basics of sound programming while expanding upon your knowledge of Python to build a web server. Finally, you will learn to interact with the third-party microcontrollers. From writing your first Assembly Language application to programming graphics, this title guides you through the essentials.
Table of Contents (18 chapters)
Raspberry Pi Computer Architecture Essentials
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Integration with Arduino


As you may remember, we enabled the serial port on the Raspberry Pi earlier. We are now going to install a Python library called PySerial that allows us to communicate via Python.

This can be installed via apt-get:

sudo apt-get install python-serial

Tip

If you already have the latest version of the library, you will see this message:

python-serial is already the newest version.

Once you have this installed you can read more about the library at the PySerial website: https://pythonhosted.org/pyserial/.

Before we start writing applications with PySerial, we need to know where our Arduino is connected. You may have noticed that this information was provided in the Arduino IDE when you selected the serial port. If you used a different machine to write the sketch, however, there is a method we can use to find out where it is plugged in.

Start by running the following command:

ls /dev/tty*

This will output a list to your screen. Currently, the Arduino Uno isn't connected,...