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  • Book Overview & Buying Python Programming for Arduino
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Python Programming for Arduino

Python Programming for Arduino

By : Pratik Desai
4.6 (22)
Buy this Book
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Python Programming for Arduino

Python Programming for Arduino

4.6 (22)
By: Pratik Desai
Buy this Book

Overview of this book

This is the book for you if you are a student, hobbyist, developer, or designer with little or no programming and hardware prototyping experience, and you want to develop IoT applications. If you are a software developer or a hardware designer and want to create connected devices applications, then this book will help you get started.
Table of Contents (18 chapters)
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Python Programming for Arduino
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Python Programming for Arduino
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Free Chapter
1
Getting Started with Python and Arduino
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Getting Started with Python and Arduino
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Introduction to Python
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Installing Python and Setuptools
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The fundamentals of Python programming
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Python operators and built-in types
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Introduction to Arduino
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Getting started with the Arduino IDE
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Introduction to Arduino programming
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Summary
2
Working with the Firmata Protocol and the pySerial Library
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Working with the Firmata Protocol and the pySerial Library
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Connecting the Arduino board
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Introducing the Firmata protocol
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Getting started with pySerial
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Bridging pySerial and Firmata
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Summary
3
The First Project – Motion-triggered LEDs
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The First Project – Motion-triggered LEDs
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Motion-triggered LEDs – the project description
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The project goal
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Method 1 – using a standalone Arduino sketch
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Method 2 – using Python and Firmata
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Summary
4
Diving into Python-Arduino Prototyping
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Diving into Python-Arduino Prototyping
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Prototyping
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Working with pyFirmata methods
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Prototyping templates using Firmata
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Prototyping with the I2C protocol
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Summary
5
Working with the Python GUI
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Working with the Python GUI
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Learning Tkinter for GUI design
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Your first Python GUI program
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The Button() widget – interfacing GUI with Arduino and LEDs
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The Entry() widget – providing manual user inputs
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The Scale() widget – adjusting the brightness of an LED
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The Grid geometry manager
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The Checkbutton() widget – selecting LEDs
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The Label() widget – monitoring I/O pins
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Remaking your first Python-Arduino project with a GUI
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Summary
6
Storing and Plotting Arduino Data
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Storing and Plotting Arduino Data
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Working with files in Python
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Using CSV files to store data
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Storing Arduino data in a CSV file
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Getting started with matplotlib
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Plotting random numbers using matplotlib
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Plotting data from a CSV file
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Plotting real-time Arduino data
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Integrating plots in the Tkinter window
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Summary
7
The Midterm Project – a Portable DIY Thermostat
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The Midterm Project – a Portable DIY Thermostat
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Thermostat – the project description
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Stage 1 – prototyping the thermostat
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Stage 2 – using a Raspberry Pi for the deployable thermostat
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Summary
8
Introduction to Arduino Networking
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Introduction to Arduino Networking
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Arduino and the computer networking
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Developing web applications using Python
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RESTful web applications with Arduino and Python
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MQTT – A lightweight messaging protocol
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Getting started with MQTT on Arduino and Python
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Summary
9
Arduino and the Internet of Things
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Arduino and the Internet of Things
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Getting started with the IoT
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The IoT cloud platforms
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Developing cloud applications using Python and Xively
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Your own cloud platform for the IoT
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Summary
10
The Final Project – a Remote Home Monitoring System
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The Final Project – a Remote Home Monitoring System
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The design methodology for IoT projects
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Project overview
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Stage 1 – a monitoring station using Arduino
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Stage 2 – a control center using Python and the Raspberry Pi
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Stage 3 – a web application using Xively, Python, and Amazon cloud service
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Testing and troubleshooting
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Extending your remote home monitoring system
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Summary
11
Tweet-a-PowerStrip
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Tweet-a-PowerStrip
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Project overview
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Stage 1 – a smart power strip with Arduino and relays
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Stage 2 – the Python code to process tweets
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Testing and troubleshooting
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Extending the project with additional features
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Summary
Index
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Index

Plotting data from a CSV file

At the beginning of the chapter, we created a CSV file from Arduino data. We will be using that SensorDataStore.csv file for this section. If you recall, we used two different sensors to log the data. Hence, we have two arrays of values, one from a digital sensor and another from the analog one. Now, in the previous example, we just plotted one set of values for the y axis. So, how are we going to plot two arrays separately and in a meaningful way?

Let's start by creating a new Python program using the following lines of code or by opening the plotCSV.py file from this chapter's code folder:

import csv
from matplotlib import pyplot

i = []
mValues = []
pValues = []

with open('SensorDataStore.csv', 'r') as f:
    reader = csv.reader(f)
    header = next(reader, None)
    for row in reader:
        i.append(int(row[0]))
        pValues.append(float(row[1]))
        if row[2] == 'True':
            mValues.append(1)
        else:
            mValues.append(0)

pyplot...

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