Hands-On Internet of Things with MQTT

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "So, often, it is better to rewrite delay() calls to use a custom timer instead of using the millis() function."

A block of code is set as follows:

if temperature < 5°C {   send me a reminder to use beanie and gloves}

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

if (inputValue == 1) {    lastTimeOpenend = millis();    isOpen = true;    myservo.write(90); }

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

mosquitto_pub ...