Learning BeagleBone Python Programming电子书

Learning BeagleBone Python Programming

Table of Contents

Learning BeagleBone Python Programming

Credits

About the Author

About the Reviewers

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Errata

Piracy

Questions

1. Before We Begin

An overview of BeagleBone

General purpose input/output

Analog-to-digital converter

Pulse width modulation

Universal asynchronous receiver/transmitter

Serial peripheral interface

Inter-Integrated Circuit

Tools and additional hardware

The BeagleBone design

Board comparison

Helpful resources

Summary

2. Getting Started

Initial setup

Updating your Debian image

Connecting to your BeagleBone

The Cloud9 IDE

SSH

Connecting to the Internet

Ethernet

Network forwarding

Using the serial console

Updating your software

The PyBBIO library

The Adafruit_BBIO library

Summary

3. Digital Outputs

GPIO modules

Kernel drivers

Pin multiplexing

Interactive GPIO

Calculating resistor values for LEDs

Driving higher currents from GPIO pins

Blink

Taking advantage of the OS

Multiprocessing

Running at startup

Summary

4. PWM and ADC Subsystems

PWM

Fading an LED

Servo motors

ADC

Voltage divider

Voltage follower

Your first robot

Summary

5. User Input

Buttons

Pull-up/pull-down resistors

Polling

Interrupts

Potentiometers

Summary

6. Program Output

LED displays

LED bar graphs

7-segment displays

The LED matrix

SMTP

Character LCD

Summary

7. Serial Communication

Serial communication

UART

I2C

SPI

Summary

8. Interfacing with External Devices

Accelerometers

Hooking it up

Reading data

Writing a module

Using interrupts

Summary

9. Using the Network

TCP/IP

HTTP

IoT Services

Phant

dweet.io

Freeboard

Summary

10. A Practical Example

Weather station

Connecting to the Internet

Weather alerts

Summary

A. The BeagleBone Black Pinout

B. Disabling HDMI

Index