# LILYGO T-Internet-COM

> ESP32 development board with LAN8720 Ethernet, 16MB flash, 8MB PSRAM, WS2812 RGB LED, SIM/TF card slots, and T-PCIE expansion support for industrial IoT, wired networking, and CAN bus applications.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32
- **Price:** ~$13.3
- **Product Readiness:** developer
- **CPU:** ESP32
- **CPU Architecture:** Xtensa LX6
- **CPU Cores:** 2
- **RAM:** 520KB SRAM
- **PSRAM:** 8MB
- **Flash:** 16MB
- **USB:** USB-C
- **Power:** 5-12V DC
- **Operating Voltage:** 3.3V
- **SD Card:** microSD

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2
- **Ethernet:** 10/100 Mbps

## Open Source

- **Firmware:** Yes
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

arduino, esp-idf, esphome

## Use Cases

- industrial-iot
- wired-iot-gateway
- can-bus-monitoring
- network-automation

## Components

- **ESP32** (mcu): Dual-core 240MHz Xtensa LX6 with WiFi 802.11 b/g/n and BLE 4.2 — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)
- **LAN8720** (ethernet): Single-chip 10/100 Mbps Ethernet physical layer transceiver with flexible power management — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fww1.microchip.com%2Fdownloads%2Fen%2FDeviceDoc%2F8720a.pdf&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)
- **WS2812B** (led): Addressable RGB LED on GPIO12 for status indication — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)
- **CH9102** (usb-serial): USB to serial converter for programming via Type-C port — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.wch-ic.com%2Fproducts%2FCH9102.html&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)

## Protocols

- **UART**
- **SPI**
- **I2C**
- **CAN**
- **I2S**
- **SDIO**

## Available Software

- **[Arduino IDE]()** (open-source)
- **[ESP-IDF]()** (open-source)
- **[ESPHome]()** (open-source)

## Description

## Overview

The LILYGO T-Internet-COM is an ESP32-based industrial communication board combining wired Ethernet via the LAN8720 single-chip 10/100 Mbps PHY with WiFi 802.11 b/g/n and BLE 4.2 for comprehensive connectivity. The board features 16MB flash, 8MB PSRAM, a WS2812 RGB LED on GPIO12, SIM card and TF card slots, and a mini PCIe expansion interface for LILYGO T-PCIE modules. Powered via USB Type-C or a wide-range DC 5–12V input, it supports UART, SPI, I2C, CAN, I2S, and SDIO interfaces. The inclusion of CAN bus alongside Ethernet makes this board particularly suited for industrial automation, vehicle telemetry, and multi-protocol IoT gateways. Programming is handled through the CH9102 USB-to-TTL chip.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-internet-com&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export) — $13.30

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-internet-com&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-Internet-COM&ref=openhardware.directory&product=lilygo-t-internet-com&source=md-export)

## Tags

`esp32`, `ethernet`, `lan8720`, `can-bus`, `industrial-iot`, `wired-network`

## Images

![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/f0105ac7aac8.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/16adf712be13.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/12b0331cf36b.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/5b4886a988e9.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/d188f99495c9.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/d02ef97e1fe4.jpg)
![LILYGO T-Internet-COM](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-internet-com/aa15f39401df.png)

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