Book Image

Intelligent IoT Projects in 7 Days

By : Agus Kurniawan
Book Image

Intelligent IoT Projects in 7 Days

By: Agus Kurniawan

Overview of this book

Intelligent IoT Projects in 7 days is about creating smart IoT projects in just 7 days. This book will help you to overcome the challenge of analyzing data from physical devices. This book aims to help you put together some of the most exciting IoT projects in a short span of time. You'll be able to use these in achieving or automating everyday tasks—one project per day. We will start with a simple smart gardening system and move on to a smart parking system, and then we will make our own vending machine, a smart digital advertising dashboard, a smart speaker machine, an autonomous fire fighter robot, and finally look at a multi-robot cooperation using swarm intelligence
Table of Contents (9 chapters)
Essential Hardware Components

GPIO programming on ReSpeaker

ReSpeaker has one MCU MT7688 and co MCU ATmega32U4, so we can access both MCUs from our program. Inside the board, ReSpeaker runs Linux OpenWrt, so we can perform Linux operations on the ReSpeaker terminal. Not all GPIO pins are accessible from a program. ReSpeaker exposes specific GPIOs.

In general, we can use the following GPIO layout of the ReSpeaker board:

You can see here that some GPIO pins belong to MCU MT7688 and MCU ATmega32U4. If you want to know the complete schematic of the ReSpeaker core board, I recommend you read this document at

To access GPIO pins on MCU ATmega32U4, you can use Arduino software. We can write a sketch for Arduino program in the MCU ATmega32U4.

For MCU MT7688, we can access GPIO using GPIO programming for Linux since ReSpeaker...