Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "What we are interested in is the return_value field, which contains the result of the digitalRead() function."

A block of code is set as follows:

String data = "";
data = data + timeString + "," + String(temperature) + "," + String(humidity) + "," + String(lightLevel);

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

[default]
if (client) {
  // Process request
  process(client);

  // Close connection and free resources.
  client.stop();
}

Any command-line input or output is written as follows:

# /digital/7/1

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "On Windows, you can find it by navigating to Control Panel | Network and Internet | View network status and sharing options."