---
title: "dc01-esp32"
url: "https://maker.wiznet.io/irina/projects/dc01-esp32/"
markdown_url: "https://maker.wiznet.io/irina/projects/dc01-esp32/md"
type: "UCC: User Created Content"
author: "aiotfactory"
author_url: "https://github.com/aiotfactory/dc01-esp32"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "aiotfactory"
original_url: "https://github.com/aiotfactory/dc01-esp32"
published: "2025-07-31"
language: "en"
likes: 0
views: 2076
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# dc01-esp32

> ESP32-based IoT firmware supporting sensors, W5500 Ethernet, Wi-Fi, OTA updates, and MQTT communication, integrated with the dc01 IoT platform.

Original author: aiotfactory (source: https://github.com/aiotfactory/dc01-esp32)

## Article

## 🧩 dc01-esp32: ESP32-Based IoT Firmware with W5500 Ethernet Communication

`dc01-esp32` is an open-source IoT firmware project built on ESP32 by AIOT Factory, designed to accelerate on-site IoT system development. It supports various sensors and multiple communication interfaces such as **Wi-Fi, BLE, LTE, and W5500-based Ethernet**, making it a truly end-to-end IoT solution.

🔧 System Overview

```plaintext
[Sensor + ESP32 + W5500]
       │      │
 SPI(W5500)   └── Wi-Fi or LTE
       │
[dc01-esp3 Firmware]
       │
[dc01-iot-platform Server or MQTT Broker]
```

### 🚀 Role and Benefits of W5500 Ethernet Module

While ESP32 supports Wi-Fi natively, **WIZnet’s W5500 Ethernet module** brings enhanced reliability and performance in industrial or mission-critical environments.

#### Key Benefits:

| Feature | Description |
| --- | --- |
| **HW TCP/IP Stack** | Reduces CPU load by offloading TCP/IP processing |
| **SPI Interface** | Easy control via SPI with ESP32 |
| **Reliable Reconnection** | More stable than Wi-Fi after reboot/power loss |
| **PoE Support** | Possible integration for industrial use |

#### Use Case:

Use W5500 to transmit sensor data from ESP32 to the `dc01-iot-platform` via HTTP, MQTT, or WebSocket.

Static IP setup for gateway operation

OTA over Ethernet support

---

### 📁 Firmware Structure

ESP-IDF based (Espressif’s official SDK)

Includes `main/`, `components/`, and `module_w5500/`

`sdkconfig` defines SPI pins, MAC address, DHCP/static IP

Integrated drivers for sensors, Ethernet, and OTA

---

### 🧠 Summary from an Engineer’s View

| Feature | Explanation |
| --- | --- |
| Ethernet | W5500 driver via `eth_driver_w5500.c` |
| Interface Switch | Wi-Fi or Ethernet selectable |
| Socket | 8 concurrent TCP/UDP sockets (W5500 spec) |
| Cloud | Supports FastAPI, MQTT, WebSocket |
| OTA | Built-in support using ESP-IDF OTA API |

---

### ✅ Summary

`dc01-esp3` offers a comprehensive ESP32-based IoT platform with **built-in Ethernet via W5500**, enabling stable and secure network communication. It’s especially suitable for **industrial-grade IoT systems** where Wi-Fi is not feasible or reliable.

---

Source: https://maker.wiznet.io/irina/projects/dc01-esp32/