LilyGO TTGO T-Internet PoE ESP32 - LAN8720A

A PoE (Power over Ethernet) module from LilyGo. With this module it possible to connect to a router via an Ethernet cable and simultaneously supply the module with power via the same cable using PoE. This module is based on an ESP32 chip, which also makes it possible to use Wi-Fi and Bluetooth.

Specifications:

• Supply voltage:
  • USB-C: 5V DC
  • PoE: 50V DC
  • 3V3 pin: 3.3V DC
• Signal voltage: 3.3V
• Chipset: ESP32-WROOM-32 (240MHz dual core processor)
  • Flash memory: 4MB
  • SRAM: 520KB
  • Built-in Wi-Fi
  • Built-in Bluetooth
• USB to serial converter: None (see note at the bottom of the page for programming)
• Ethernet chip: LAN8720A
• Power management chip: SI3404
• Built-in microSD card adapter
• Dimensions: See images

Package contents:

• 1x TTGO T-Internet PoE
• 1x 2x8 Male pin header

See the following video for a clear explanation about ethernet/PoE and the use of this board: Andreas Spiess "Is Power over Ethernet (POE) on the ESP32 any good?"

See the following page for more information: LilyGO T-ETH-POE

Note: The USB-C port on this module is only intended to power the module. To program this module, the following module is required (see images): TTGO TTL USB Serial Port Adapter for T-Internet PoE

Note: To use the PoE function, a switch or router that supports PoE or a PoE injector is required.

Note: PoE uses a voltage of ~50V DC which can give a shock when touched.