LilyGo Downloader for T-Internet-POE

The LilyGo Downloader is a compact programming and communication module specifically developed for the LilyGo T-Internet POE series. It allows direct programming, flashing, and debugging of the ESP32 on the T-Internet POE boards – without any additional cables. The module is based on a CH340C USB-UART converter and is plugged directly onto the corresponding T-Internet POE board via a pre-installed pin header. This automatically connects all relevant signals (TX, RX, GND, BOOT, and RESET), enabling particularly fast and reliable programming. The integrated USB-C connector is used for both data transmission and power supply. Due to the simple plug-in system, the downloader is ideal for development, testing, and maintenance work on PoE-powered IoT devices.

Recommended Accessories:

• LilyGo T-Internet POE Ethernet Board with ESP32 and LAN8720A

Features:

• USB-to-UART adapter based on the CH340C
• Specifically developed for the LILYGO T-Internet POE series
• Direct plug-in connection via pre-installed pin header
• No cable connection required – simply plug in
• Supports flashing, debugging, and serial communication
• Compatible with Arduino IDE, ESP-IDF, and PlatformIO

Application Examples:

• Programming and debugging LILYGO T-Internet POE boards
• Firmware updates and serial communication
• Fast flashing in development or production environments
• Service tool for PoE-based IoT systems

Documentation:

• GitHub

Technical Data:

• Manufacturer: LILYGO
• Manufacturer SKU: H439
• USB-UART converter: CH340C
• Interfaces: TX, RX, GND, BOOT, RESET
• Connection type: Direct plug-in connection (pre-installed pin header)
• USB connector: USB-C
• Compatible boards: LILYGO T-Internet POE series
• Power supply: 5 V via USB-C
• Dimensions: 53 × 20 × 8 mm
• Weight: 4 g

Scope of Delivery:

• 1 × LilyGo Downloader for T-Internet POE