Book Image

M5Stack Electronic Blueprints

By : Don Wilcher
Book Image

M5Stack Electronic Blueprints

By: Don Wilcher

Overview of this book

As an embedded systems developer or an IoT developer, you can often face challenges in maintaining focus on prototyping a product concept while using a specific high-level programming language for implementation. To overcome these challenges, the M5Stack Core platform uses an ESP32 microcontroller and block code that allows you to focus on product creation and application instead of the high-level programming language. M5Stack Electronics Blueprints presents various design and prototyping approaches as well as UI layout and electronics interfacing techniques that will help you to become skilled in developing useful products effectively. This book takes you through a hands-on journey for a better understanding of the ESP32 microcontroller and the M5Stack Core's architecture. You’ll delve into M5Stack Core topics such as electronic units, light, sound, motion devices, interfacing circuits, SNAP circuit kits, Arduino applications, and building Bluetooth and Wi-Fi IoT devices. Further, you’ll explore various M5Stack core applications using a project-based learning method, including the fascinating 32-bit microcontroller device technology. By the end of this book, you’ll be able to design and build interactive, portable electronic controllers, IoT, and wearable devices using the M5Stack Core.
Table of Contents (14 chapters)
1
Part 1: M5Stack Electronics Hardware Architecture
5
Part 2: M5Stack Electronic Interfacing Circuit Projects
9
Part 3: M5Stack IoT Projects

Building an M5Stack Bluetooth receiver controller

The M5Stack Core2 Bluetooth receiver controller is an enhancement of the messenger device you build in the previous project activity. The concept of sending a text message using the M5Stack Core2 to a smartphone or tablet was investigated. You will take the prototype built with the use-case diagram shown in Figure 7.16 and convert it to receiver-controller concept diagrams shown in Figures 7.20 and 7.21. Figure 7.20 illustrates an ON-control message controller:

Figure 7.20: Sending an ON-control message

Figure 7.20: Sending an ON-control message

An OFF-control message controller use-case diagram is shown in Figure 7.21:

Figure 7.21: Sending an OFF-control message

Figure 7.21: Sending an OFF-control message

Upon the user sending the control message (ON or OFF), the smartphone will display it on its touchscreen LCD. The M5Stack Core2 will display the message and turn the RGB LED bar on or off accordingly. The buttons on the M5Stack Core2 will be used to send ON...