WT32-ETH01 Feature Introduction

1. Introduction

The WT32-ETH01, launched by Wireless-tag, is an embedded development board module based on Espressif's ESP32 series, focusing on simplifying device networking and data communication.
Its core positioning is to provide an efficient and low-cost serial-to-Ethernet solution for Internet of Things (IoT) applications, suitable for various scenarios such as smart homes, industrial automation, and energy monitoring.

1.1 🔧 Core Hardware Configuration

• Main Control Chip: Equipped with the Espressif ESP32 dual-mode SoC, integrating 2.4GHz Wi-Fi (supporting 802.11 b/g/n protocol) and BLE 4.2 (BR/EDR + BLE), featuring high RF performance and ultra-low power consumption characteristics.
• Network Interface: Provides an RJ45 Ethernet port (10/100Mbps auto-negotiation), supporting direct wired network connection, while retaining Wi-Fi wireless access capability, enabling dual-network redundancy.
• Multi-Data Ports: Includes four data transmission channels: serial port (UART), Wi-Fi, Ethernet, and Bluetooth, supporting flexible configuration of data passthrough between ports (e.g., UART ↔ Ethernet) via AT commands.

1.2 🛠️ Design Features

1. Flexible Installation: Compatible with both half-pad direct soldering and through-hole connector hardware designs. Can be directly soldered onto the user's PCB or used for breadboard prototyping, adapting to different engineering scenarios.
2. Power Supply Compatibility: Supports 5V or 3.3V dual voltage input (must choose one), with an average operating current of about 80mA, suitable for the low-power requirements of embedded devices.
3. Development Convenience: Supports AT firmware, facilitating quick start and development using the module.
4. Multiple pins are broken out, allowing for secondary development using ESP-IDF.
5. Can be developed using the ETH library in Arduino.

1.3 📡 Main Application Scenarios

• Smart Home Gateway: Connects devices like smart bulbs, sockets, and door locks, synchronizing data to the cloud or APP via Wi-Fi/Ethernet.
• Industrial Monitoring: Embedded in distribution boxes to collect real-time current, voltage, and power parameters, transmitting them to the monitoring center via Ethernet.
• Intelligent Security System: Used for devices like door/window sensors and cameras to enable remote alarms and status notifications.
• Agricultural and Medical IoT: Supports sensor data network monitoring (e.g., temperature, humidity, medical device status).

1.4 ⚙️ Development Advantages

• Integrated Protocol Stack: Built-in optimized TCP/IP protocol stack, significantly reducing the complexity of device networking development.
• AT Command Control: Provides a rich AT command set (e.g., AT+PASSCHANNEL to set passthrough channel, AT+CIPETH_DEF to configure static IP/DHCP), simplifying network parameter adjustment and data transmission management.
• OTA Upgrade: Supports remote firmware updates, offering high maintenance convenience.

2. Pin Description

2.1 Programming/Debugging Pins

2.2 O Pin Description

!! When powering, you must choose either the 3V3 power supply OR the 5V power supply!!!

3. Power Characteristics

3.1 Supply Voltage

The module's supply voltage can be either 5V or 3V3. You must choose only one.

3.2 Power Supply Modes

Users can freely choose according to their needs:

1. Through-hole (soldering pin headers):
   • Power supply via Dupont wires.
   • Power supply via breadboard connections.
2. Half-pad (directly soldered onto the board): Powered by the user's board.