Internet of Things Programming Projects by Dow, Colin -- Read -- Imperial Library of Trantor

Index

Title Page Copyright and Credits

Internet of Things Programming Projects

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Preface

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Download the example code files Download the color images Conventions used

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Installing Raspbian on the Raspberry Pi

A brief history of the Raspberry Pi A look at operating systems for the Raspberry Pi Project overview Getting started Installing the Raspbian OS

Formatting a microSD card for Raspbian Copying the NOOBS files to the microSD RAM Running the installer

A quick overview of the Raspbian OS

The Chromium web browser The home folder The Terminal Mathematica Sonic Pi Scratch and Scratch 2.0 LibreOffice

Summary Questions Further reading

Writing Python Programs Using Raspberry Pi

Project overview Technical requirements Python tools for Raspberry Pi

The Terminal Integrated Development and Learning Environment Thonny

Using the Python command line Writing a simple Python program

Creating the class Creating the object Using the object inspector Testing your class Making the code flexible

Example one Example two

Summary Questions Further reading

Using the GPIO to Connect to the Outside World

Project overview Technical requirements Python libraries for the Raspberry Pi

picamera Pillow sense-hat and sense-emu

Accessing Raspberry Pi's GPIO

Pibrella RPi.GPIO GPIO zero

Setting up the circuit

Fritzing Building our circuit

Hello LED

Blink LED using gpiozero Morse code weather data

Summary Questions Further reading

Subscribing to Web Services

Prerequisites Project overview Getting started Cloud services for IoT

Amazon Web Services IoT IBM Watson platform Google Cloud platform Microsoft Azure Weather Underground

A basic Python program to pull data from the cloud

Accessing the web service Using the Sense HAT Emulator

Summary Questions Further reading

Controlling a Servo with Python

Knowledge required to complete this chapter Project overview Getting started Wiring up a servo motor to the Raspberry Pi

Stepper motors DC motors Servo motors Connecting the servo motor to our Raspberry Pi

Control the servo through the command line Write a Python program to control the servo Summary Questions Further reading

Working with the Servo Control Code to Control an Analog Device

Knowledge required to complete this chapter Project overview Getting started Accessing weather data from the cloud Controlling the servo using weather data

Correcting for servo range Changing the position of the servo based on weather data

Enhancing our project

Printing out the main graphic Adding the needle and LED

Summary Questions Further reading

Setting Up a Raspberry Pi Web Server

Knowledge required to complete this chapter Project overview Getting started Introducing CherryPy – a minimalist Python web framework

What is CherryPy?

Who uses CherryPy?

Installing CherryPy

Creating a simple web page using CherryPy

Hello Raspberry Pi! Say hello to myFriend What about static pages? HTML weather dashboard

Summary Questions Further reading

Reading Raspberry Pi GPIO Sensor Data Using Python

Project overview Getting started Reading the state of a button

Using GPIO Zero with a button Using the Sense HAT emulator and GPIO Zero button together Toggling an LED with a long button press

Reading the state from an infrared motion sensor

What is a PIR sensor? Using the GPIO Zero buzzer class Building a basic alarm system

Modifying Hello LED using infrared sensor

Configuring a distance sensor Taking Hello LED to another level

Summary Questions Further reading

Building a Home Security Dashboard

Knowledge required to complete this chapter Project overview Getting started Creating our dashboard using CherryPy

Using the DHT11 to find temperature and humidity Using the Pi camera to take a photo Creating our dashboard using CherryPy

Displaying sensory data on our dashboard

Home security dashboard with a temperature sensor Home security dashboard with quick response

Summary Questions Further reading

Publishing to Web Services

Project overview Getting started Publishing sensory data to cloud-based services

Install the MQTT library Set up an account and create a device Reading sensory data and publishing to ThingsBoard Creating a dashboard in ThingsBoard Sharing your dashboard with a friend

Setting up an account for text message transmission

Setting up a Twilio account Installing Twilio on our Raspberry Pi Sending a text through Twilio Creating a new home security dashboard

Summary Questions Further reading

Creating a Doorbell Button Using Bluetooth

Project overview Getting started Introducing Blue Dot

Installing the bluedot library on the Raspberry Pi Pairing Blue Dot with your Raspberry Pi

Wiring up our circuit

What is an RGB LED? Testing our RGB LED Completing our doorbell circuit

Reading our button state using Bluetooth and Python

Reading button information using Python Creating a Bluetooth doorbell Creating a secret Bluetooth doorbell

Summary Questions Further reading

Enhancing Our IoT Doorbell

Project overview Getting started Sending a text message when someone is at the door

Creating a simple doorbell application with text messaging Creating a secret doorbell application with text messaging

Summary Questions Further reading

Introducing the Raspberry Pi Robot Car

The parts of the robot car Building the robot car

Step 1 – Adafruit 16-Channel PWM/Servo HAT for Raspberry Pi Step 2 – Wiring up the motors Step 3 – Assembling the servo camera mount Step 4 – Attaching the head Step 5 – Assembling the DC motor plate Step 6 – Attaching the motors and wheels Step 7 – Wiring up the motors Step 8 – Attaching the camera mount, Raspberry Pi, and Adafruit servo board Step 9 – Attaching the buzzer and voltage divider Step 10 – Wiring up T.A.R.A.S

Learning how to control the robot car

Configuring our Raspberry Pi Python library for Adafruit Servo HAT

Summary Questions

Controlling the Robot Car Using Python

Knowledge required to complete this chapter Project overview Getting started Taking a look at the Python code

Controlling the drive wheels of the robot car Moving the servos on the robot car Taking a picture Making a beep noise Making the LEDs blink

Modifying the robot car Python code

Move the wheels Move the head Make sounds

Enhancing the code

Stitching our code together

Summary Questions Further reading

Connecting Sensory Inputs from the Robot Car to the Web

Knowledge required to complete this chapter Project overview Getting started Identifying the sensor on the robot car

Taking a closer look at the HC-SR04

Reading robot car sensory data with Python Publishing robot car sensory data to the cloud Create a ThingsBoard device Summary Questions Further reading

Controlling the Robot Car with Web Service Calls

Knowledge required to complete this chapter Project overview Technical requirements Reading the robot car's data from the cloud

Changing the look of the distance gauge Changing the range on the distance gauge Viewing the dashboard outside of your account

Using a Python program to control a robot car through the cloud

Adding a switch to our dashboard Controlling the green LED on T.A.R.A.S Using the internet to make T.A.R.A.S dance

Summary Questions Further reading

Building the JavaScript Client

Project overview Getting started Introducing JavaScript cloud libraries

Google Cloud AWS SDK for JavaScript Eclipse Paho JavaScript client

Connecting to cloud services using JavaScript

Setting up a CloudMQTT account Setting up an MQTT Broker instance Writing the JavaScript client code Running the code Understanding the JavaScript code Publishing MQTT messages from our Raspberry Pi

Summary Questions Further reading

Putting It All Together

Project overview Getting started Building a JavaScript client to connect to our Raspberry Pi

Writing the HTML code Writing the JavaScript code to communicate with our MQTT Broker

Creating a JavaScript client to access our robot car's sensory data

Writing the code for T.A.R.A.S Livestreaming videos from T.A.R.A.S

Enhancing our JavaScript client to control our robot car

Nipple.js HTML5 Gamepad API Johnny-Five

Summary Questions Further reading

Assessments

Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18

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