LilyGO T-Internet-POE

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Pin data comes from the vendor’s docs and schematics and hasn’t been checked on hardware yet. Firmware built from main since the ESP-IDF port also needs ESPresense#2537: without it this board’s Ethernet clock comes out on the wrong pin and Ethernet never links.

Works, with caveatsCheap isolated PoE, but no USB data port and the antenna sits beside the metal jack.

Chip	ESP32
Form factor	Bare board
Flash	4 MB
Antenna	PCB antenna beside the RJ45 jack
USB	USB-C, power only
Install	Browser installer through LilyGO's downloader board or a USB-TTL adapter, esp32 flavor
Price	~$16; ~$21 with the downloader
Stores	amz/us (+downloader)lilygo

GPIO

GPIO	Function	ESPresense setting
17	Ethernet clock out	—
5	PHY reset (pulled up)	—
32	Header (suggested I2C SDA)	—
33	Header (suggested I2C SCL)	—
2	TF card MISO	—
15	TF card MOSI	—
14	TF card SCLK	—
13	TF card CS	—

Template

Paste this into the Board Template box on the node's Templates page, then Preview and Apply (firmware v5.0.0b1 or later). It sets the board's pins (and Ethernet type, if it has one) in one go. The LED, input and output lists replace what was configured before, so the result doesn't depend on the node's old setup. See Templates.

{"name":"T-Internet-POE","chip":"esp32","settings":{"leds":[],"inputs":[],"outputs":[],"eth":8}}

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Formatted, with what each value means

{
  "name": "T-Internet-POE",
  "chip": "esp32",
  "settings": {
    "leds": [],
    "inputs": [],
    "outputs": [],
    "eth": 8
  }
}

LED type: pwm, pwm_inverted, grb, grbw, rgb or rgbw (the last four are addressable). LED control: mqtt, status, motion, count, or output (follows the output numbered byoutput). Input type: pullup, pulldown or floating, with_inverted for active-low. Output type: output, output_inverted, or high/low for a pin that's just held at that level. An output's input is the 1-based input that controls it. power takes ESPHome's hlw8012 values (a cse7766 needs only rx); sel_inverted matches ESPHome's inverted on sel_pin. eth is the Ethernet Type's option number.

Notes

• The firmware calls this LilyGO-T-ETH-POE (eth 8), the board’s old name. Both the original and V2 boards match it.
• There’s no USB-serial chip: the USB-C port only supplies power. Flash it through LilyGO’s downloader board on the 6-pin header, or any 3.3 V USB-TTL adapter wired to EN, TX, RX, GND and IO0. Without DTR/RTS, hold BOOT, tap RST, release BOOT.
• PoE is IEEE 802.3af and isolated.
• There’s no user LED (only power and the jack’s link LEDs), so the template turns the LEDs off.
• I2C is off by default. For a sensor, use SDA 32 / SCL 33 on the header.
• GPIO 18, 19, 21, 22, 23, 25, 26 and 27 belong to Ethernet (RMII and MDIO/MDC). Don’t put sensors on them. GPIO 5 and 17 too.
• Other LilyGO Ethernet boards (T-POE-PRO, T-INTER-COM, T-ETH-Lite S3) wire Ethernet differently and aren’t supported.

Sources

• LilyGO T-ETH series repo (schematics, utilities.h)