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Getting started with Udoo

By : Emanuele Palazzetti

4.8 (4)

Getting started with Udoo

4.8 (4)

By: Emanuele Palazzetti

Overview of this book

If you are an Android developer who wants to learn how to use UDOO to build Android applications that are capable of interacting with their surrounding environment, then this book is ideal for you. Learning UDOO is the next great step to start building your first real-world prototypes powered by the Android operating system.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Turn On the Engines

1. Turn On the Engines

Introducing the UDOO platform

Downloading and installing Android

Setting up the development environment

Running your first Android application

Summary

2. Know Your Tools

2. Know Your Tools

Introducing Arduino Due capabilities

Interacting with the real world

Fast prototyping a circuit

Summary

3. Testing Your Physical Application

3. Testing Your Physical Application

Building a testable circuit

Developing a diagnostic mode

Summary

4. Using Sensors to Listen to the Environment

4. Using Sensors to Listen to the Environment

Working with environment sensors

Building a heartbeat monitor

Collecting data from the sketch

Android for data visualization

Enhancing the prototype

Summary

5. Managing Interactions with Physical Components

5. Managing Interactions with Physical Components

Managing user interactions

Building a web radio with physical interaction

Streaming audio from Android applications

Improving the prototype

Summary

6. Building a Chronotherm for Home Automation

6. Building a Chronotherm for Home Automation

Home automation

Building a chronotherm circuit

Managing the chronotherm through Android

Improving the prototype

Summary

7. Using Android APIs for Human Interaction

7. Using Android APIs for Human Interaction

Extending prototypes with Android APIs

Improving user settings

Implementing voice recognition

Improving user interaction with voice synthesis

Summary

8. Adding Network Capabilities

8. Adding Network Capabilities

Extending Chronotherm with network capabilities

Collecting weather forecast data

Improving the boiler with an antifreeze check

Summary

Index

Index

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Collecting data from the sketch

Now that we have a working circuit, we should start to write down our sketch to collect data from the light sensor. Then we should analyze these results and think about an algorithm to transform readings into a heartbeat counter. We should start a new sketch and add the following steps:

Add the following declarations on the top of the sketch:
```
#define SENSOR A0
#define HEARTBEAT_POLL_PERIOD50
#define SECONDS 10
constint TIMESLOTS = SECONDS * 1000 / HEARTBEAT_POLL_PERIOD;
int sensorReading = 0;
```
We define the object-like macro SENSOR with a A0 value that is the pin we will use for the analog read. We set HEARTBEAT_POLL_PERIOD to specify how many milliseconds the microcontroller should wait between consecutive sensor readings. With the SECONDS parameter, we define the seconds that should elapse before we use collected data to process and estimate the heart rate. Indeed, we multiply SECONDS by 1000 to convert this value into milliseconds and then we divide it by...

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