WT32-ETH01 ESP32 Ethernet WiFi Bluetooth UART Serial Gateway IoT Module

🌐 WT32-ETH01 ESP32 Ethernet + WiFi + Bluetooth Serial Gateway Module | AuscomTech

The WT32-ETH01 is a compact and industrial-ready embedded serial networking gateway based on the ESP32 platform, combining Ethernet, Wi-Fi, and Bluetooth connectivity in a single module.

Designed for serial-to-network communication, this module enables embedded devices, sensors, PLCs, and controllers to connect seamlessly to LAN, Wi-Fi networks, and Bluetooth links using transparent data transmission modes. It is well suited to IoT gateways, industrial automation, smart devices, and network-enabled embedded systems where reliability and protocol flexibility are required.

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⭐ Key Features

• Triple Network Connectivity – Ethernet (10/100 Mbps), 2.4 GHz Wi-Fi, and Bluetooth 4.2 (BLE)

• Serial-to-Network Transparent Transmission – Direct UART data forwarding over Ethernet, Wi-Fi, or Bluetooth

• ESP32-Based Architecture (ESP32-S1 marking) – High RF performance, stability, and low power consumption

• Integrated RJ45 Ethernet Interface – Reliable wired networking for industrial environments

• Multiple Network Modes – TCP Server, TCP Client, UDP Server, UDP Client

• IP Configuration Options – Static IP or DHCP

• Secure Communication – WPA / WPA2 / WPA2-Enterprise support

• Flexible Mounting Options – Half-hole pads and through-hole headers for PCB or breadboard use

• OTA Firmware Upgrade – Remote firmware updates via Ethernet or Wi-Fi

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📊 Technical Specifications

Core System

• Microcontroller: ESP32 series

• Flash Memory: 32 Mbit

• CPU Architecture: Dual-core ESP32

• RF Band: 2.4 GHz ISM

Networking

• Ethernet: 10/100 Mbps

• Wi-Fi: IEEE 802.11 b/g/n (Station / SoftAP / STA+AP / P2P)

• Bluetooth: Bluetooth 4.2 + BLE

• Network Protocols: IPv4, TCP, UDP

Serial Interface

• UART transparent transmission

• Baud rate range: 80 – 5,000,000 bps

• Default baud rate: 115200

Power

• Supply voltage: 5 V or 3.3 V (select one only)

• Average operating current: ~80 mA

• Recommended peak supply current: ≥500 mA

Environmental

• Operating temperature: -40 °C to +85 °C

• Ambient conditions: Industrial environment

Physical

• Dimensions: 58.2 × 25.5 mm

• Weight: ~15.3 g

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🔌 Pin & Interface Highlights

• UART TX / RX

• RS485 enable pin

• Multiple GPIO pins for user applications

• Ethernet LINK status indicator pin

• Dedicated enable, configuration, and boot pins

Note: IO36, IO35, and IO39 are input-only pins.

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🧩 Typical Applications

• Serial-to-Ethernet gateways

• IoT edge gateways

• PLC and industrial controller networking

• Smart home controllers

• Energy monitoring systems

• Environmental sensing and data logging

• Remote data acquisition

• Embedded communication systems

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⚠️ Important Notes

• Ethernet, Wi-Fi, and Bluetooth operation is configurable via AT commands

• Only one power input (5 V or 3.3 V) may be used at a time

• Defaults to a static IP when directly connected to a computer

• DHCP is recommended when used with routers or LANs

  Programming Method
  This module does not include a USB interface. Programming requires an external USB-to-UART adapter (such as CP2102, CH340, or FTDI) and access to the ESP32 boot pins.
  Firmware configuration is typically performed using AT commands or ESP32-compatible development tools.

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📦 Package Includes

• 1 × WT32-ETH01 ESP32 Ethernet + Wi-Fi + Bluetooth Gateway Module