ESP32 Formats and Communication: Application of Communication Protocols with ESP32 Microcontroller (1 ed)

Although Wi-Fi communication is incorporated in many internet-based applications, knowledge of alternative communication protocols is vital for optimal project development with a microcontroller, such as the ESP32. This book focuses on communication protocols for the ESP32 microcontroller, with illustrative projects ranging from a Bluetooth low-energy beacon communicating with your smart wristwatch to long-range (LoRa) communication between microsatellites circling 550 km above the Earth and an ESP32 microcontroller in your home.

Just as there are different communication protocols, there are different ESP32 microcontroller formats. You’ll examine the features of several ESP32 microcontroller formats, which enable the optimal combination of communication protocol and ESP32 format to achieve the requirements of a project. Several of the communication protocols and ESP32 formats have only been available in the last few months or years, making the book very relevant.

Each chapter focuses on a communication protocol and is stand-alone, so it can be read without having to start from the beginning of the book. The chapters are loosely grouped into short- and long-range communication, image management for transmission to a webpage or a remote LCD screen, and the required apps and IoT techniques for remote control of an ESP32-CAM robot vehicle. The advantages of each communication protocol correspond to different project types.

What You'll Learn

• Investigate the MESH and ESP-NOW protocols for communicating between ESP32 microcontrollers without a Wi-Fi connection.
• Review email communication projects with an ESP32, and generate quick response codes to instruct the ESP32 to control a connected device.
• Look at the ESP32-CAM module built around a 2M-pixel camera for streaming images with the WebSocket protocol to a remote ESP32.
• Control an ESP32-CAM robot car via remote internet communication, with image streaming to an Android tablet or mobile phone.

About the Author

Neil Cameron is an experienced analyst and programmer with a deep interest in understanding the application of electronics. Neil wrote the books Arduino Applied: Comprehensive Projects for Everyday Electronics and Electronics Projects with the ESP8266 and ESP32: Building Web Pages, Applications, and WiFi-Enabled Devices, which Apress publishes. He has previously taught at the University of Edinburgh and Cornell University.