Introduction

With the onset of the Internet of Things (IoT) revolution, embedded

systems development is becoming very popular in the maker community

and the professional space as well. IoT is a trillion-dollar business. PICⓇ

microcontrollers are one of the technologies that can be used to develop

IoT devices. This is due to the low cost, wide availability, and low power

consumption of these devices. Additionally, due to the wide range of PICⓇ

microcontrollers available, there are PICⓇ microcontrollers that can match

your designs, from 8 pins to over 144 pins. They covers 8-, 16-, and 32-bit

architectures.

People argue that 8-bit architecture is irrelevant in the complex

embedded systems of today. However, 8-bit microcontrollers are here to

stay, even if it is for the simple purpose of learning about microcontroller

architecture. The relatively simple and beautifully engineered architecture

of 8-bit PICⓇ microcontrollers makes them invaluable for learning

the inner workings of microcontrollers. It is a lot easier to learn all the

registers of these simple 8-bit devices and follow the path of program

execution than with more complex ones. After learning about PICⓇ

microcontrollers, I found it easy to move on to the more popular 16-bit

and then 32-bit devices. In this book, I hope to share the tips and tricks I

learned along the way.