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Arduino Development Cookbook

You're reading from   Arduino Development Cookbook Over 50 hands-on recipes to quickly build and understand Arduino projects, from the simplest to the most extraordinary

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781783982943
Length 246 pages
Edition 1st Edition
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Author (1):
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Cornel M Amariei Cornel M Amariei
Author Profile Icon Cornel M Amariei
Cornel M Amariei
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Toc

Table of Contents (11) Chapters Close

Preface 1. Power on – Arduino Basics FREE CHAPTER 2. Blinking LEDs 3. Working with Buttons 4. Sensors 5. Motor Control 6. More Output Devices 7. Digital Communication with Arduino 8. Hacking A. Electronics – the Basics Index

SD cards


SD cards are great to store data in the long term. Arduino has a library specifically designed to talk to them. With this library, we can create, write, read, and destroy files. This is very handy, especially in data logging applications. We can have an Arduino running for months, recording data, and writing it to the SD card.

In this example, we will read the data from two analog ports and write it to the SD card.

Getting ready

The following are the ingredients needed for this recipe:

  • An Arduino board connected to a computer via USB.

  • A formatted SD card; Arduino accepts only FAT16 or FAT32 formatting.

  • An Ethernet shield or any other Arduino-compatible SD shield.

  • Optionally, two analog sensors. We will store their values on the SD card. It works without them, but we will only record random values on the analog ports.

How to do it…

Follow these steps to prepare to use an SD card:

  1. Plug the Arduino-compatible SD shield into the Arduino.

  2. Format the SD card to either FAT16 or FAT32.

  3. Insert the SD...

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