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Benjamin

Published November 03, 2023 ©

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IOT47_ESP32_W5500

IoT47 project utilizing ESP32 and W5500 chips provides internet connectivity solution based on practical knowledge from Vietnamese IoT blog.

COMPONENTS Hardware components

Espressif - ESP32

x 1

A microcontroller board with built-in Wi-Fi and Bluetooth capabilities.


WIZnet - W5500

x 1

A chip that provides Ethernet networking capabilities, sending and receiving data through an SPI interface.

Software Apps and online services

Arduino - Arduino IDE

x 1

A development environment for programming ESP32 and W5500 chips.


PROJECT DESCRIPTION

Overview of the IOT47_ESP32_W5500 Project

The IOT47_ESP32_W5500 project is a testament to the versatility of the W5500 chip when paired with the ESP32 microcontroller. This combination allows for robust networking capabilities, enabling devices to connect to the internet and communicate data reliably. Developed in conjunction with practical applications featured on the IOT47 blog, this project has undergone real-world testing and validation.

Hardware Components

  • ESP32: A microcontroller that is ideal for IoT projects due to its powerful processing capabilities and low power consumption.
  • W5500: A chip that provides Ethernet networking functionality through SPI communication, featuring an integrated network protocol stack for easy networking communication without complex processing.

Software Apps and Online Services

  • Arduino IDE: Offers a user-friendly interface that facilitates the programming of hardware like the ESP32 and W5500.

Utilization of the W5500 Chip

In this project, the W5500 chip is utilized alongside the ESP32 to implement internet connectivity via Ethernet. The 'iot47_esp32_w5500.h' header file contains functions for initializing the W5500 chip and configuring network settings. These functions allow users to integrate the W5500 chip with the ESP32 effortlessly, enabling networking features such as sending HTTP requests or receiving data from web servers.

Project Development Potential

The IOT47_ESP32_W5500 project serves as an excellent foundation for IoT development. Starting with this library, users can develop a variety of IoT applications, such as home automation, remote monitoring systems, and smart agriculture. As an open-source project, it also has the potential for continuous improvement and evolution through community contributions.

Code Implementation Featuring the W5500 Chip

The code snippet provided is a C language-based header file designed to set up the ESP32 with the W5500 Ethernet chip. It includes preprocessor directives to prevent duplicate inclusion and defines functions for setting MAC addresses, static IP, and initializing the TCP/IP stack.

Here's a brief explanation of the key parts of the code where the W5500 chip is used:

  • 'w5500_set_mac': Sets the MAC address for the W5500 Ethernet module.
  • 'w5500_set_statc_ip': Configures static IP, gateway, subnet mask, and DNS server information for the W5500 module.
  • 'w5500_begin' : Initializes the SPI pins and starts the W5500 Ethernet module using the settings provided.

The code also includes an example of how to use the library in an Arduino sketch. It demonstrates setting up the Ethernet connection and making an HTTP GET request to a server. This example showcases the practical application of the W5500 chip in a project, providing a solid starting point for developers to build upon.

Conclusion

The IOT47_ESP32_W5500 project plays a crucial role in extending the networking capabilities of the ESP32 using the W5500 chip. By laying the groundwork for IoT solution development and offering the possibility for expansion into various applications, this project has the potential to drive innovation in the IoT space.

Documents
  • http_test.ino

  • iot47_esp32_w5500.h

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