LilyGo T‑POE Pro Ethernet with ESP32 and RS485 Development Board

The LilyGo T‑POE Pro is a powerful IoT development board that integrates the ESP32‑WROVER‑E with extensive memory into a compact PoE platform. The microcontroller features 16 MB flash and 8 MB PSRAM and enables Wi‑Fi 802.11 b/g/n as well as Bluetooth LE 4.2 wireless connections. A LAN8720 PHY is installed for wired networks; the RJ45 port supports Power‑over‑Ethernet according to IEEE 802.3 af/at and provides up to 5 V at 4 A from a supply voltage between 44 and 57 V. Alternatively, the board can be powered via a separate DC input with 7–24 V. An integrated RS485 interface allows the connection of industrial field devices or longer bus lines. The CH9102 USB‑serial chip and a USB‑C port ensure convenient programming and data transfer. The board also has two 14‑pin extension headers and a 4‑pin connector for connecting an optional LCD display or additional peripherals. Reset and boot buttons facilitate flashing and restarting. With its diverse features, the T‑POE Pro is suitable as a robust Ethernet gateway for smart home applications, connected sensing, or machine control.

Recommended Accessories:

• Ethernet Patch Cable RJ45 Cat.6 Network Cable

Features:

• High-performance ESP32‑WROVER‑E microcontroller with large flash and PSRAM memory.
• LAN8720 Ethernet PHY enables wired networks and PoE power supply.
• PoE module delivers 5 V at up to 4 A from IEEE 802.3 af/at supply between 44 and 57 V.
• RS485 port with differential signal lines for industrial bus systems.
• USB‑C interface with CH9102 bridge for programming and power supply.
• Two 14‑pin headers and a 4‑pin connector for LCD displays and expansions.
• Reset and boot buttons facilitate development and firmware update.
• Wide DC input range of 7–24 V allows flexible power supplies.

Application Examples:

• As a PoE-enabled gateway, the board collects sensor data via RS485 and transmits it via Ethernet to the cloud.
• In smart homes, it controls connected devices via relay modules and powers itself via a PoE switch.
• For industrial plants, it transmits measurement data via RS485 to controllers and uses PoE for power supply.
• In networked control cabinets, it serves as an interface between wireless sensors and wired LAN.
• In energy monitoring projects, it captures consumption data and provides it via Wi‑Fi or Ethernet.

Documentation:

• Github

Technical Data:

• Manufacturer: LILYGO
• Manufacturer SKU: Q428
• Microcontroller: ESP32‑WROVER‑E, dual-core LX6 up to 240 MHz
• Flash Memory: 16 MB
• PSRAM: 8 MB
• Wireless Connectivity: Wi‑Fi 802.11 b/g/n, BLE 4.2
• Ethernet Port: LAN8720 PHY
• PoE Module: IEEE 802.3 af/at, 5 V @ 4 A, input 44 – 57 V
• DC Input: 7 – 24 V
• Serial Chip: CH9102
• Extensions: 2 × 14‑pin headers, 1 × 4‑pin connector for LCD and RS485
• RS485 Interface: Differential signals A/B with DGND
• Buttons: Reset and Boot
• Dimension: 104 × 86 × 18 mm
• Weight: 101g

Scope of Delivery:

• 1x LilyGo T‑POE Pro Ethernet with  ESP32 and RS485 development board
• 1x 14‑pin header (male)
• 1x 14‑pin header (female)
• 1x 4‑pin header