T-PCIE get it now

Overview

LILYGO T-PCIE is an ESP32-based cellular development board featuring a Mini PCIe (mPCIe) socket for interchangeable cellular modem modules. Powered by the ESP32-WROVER-E (dual-core Xtensa LX6, 240 MHz, 4 MB Flash, 8 MB PSRAM) with Wi-Fi and Bluetooth 4.2, the T-PCIE accommodates a wide range of cellular modules — including SIM7000G (NB-IoT/Cat-M), SIM7600X (LTE Cat-4), and other standard mPCIe-format modems. An AXP2101 PMU manages power for the modem and the ESP32, while a SIM card slot and USB-C connector round out the design. Ideal for cellular IoT gateways, remote monitoring nodes, and portable LTE/NB-IoT data devices.

Quick Start

Example Support

Example	PlatformIO/Arduino	ESP-IDF	Description
LilyGo-T-PCIE	✓		Cellular AT commands, MQTT, HTTP examples

PlatformIO

1. Install Visual Studio Code and Python
2. Search for and install the PlatformIO IDE extension in VS Code
3. Open the LilyGo-T-PCIE project folder
4. Open platformio.ini and select the modem environment matching your module
5. Click ✓ to compile, connect via USB-C, click → to upload

Arduino

1. Install Arduino IDE
2. Install Arduino ESP32
3. In Tools → Board, configure:

Arduino IDE Setting	Value
Board	ESP32 Wrover Module
CPU Frequency	240 MHz (WiFi)
Flash Size	4MB (32Mb)
Partition Scheme	Huge APP (3MB No OTA/1MB SPIFFS)
PSRAM	Enabled
Upload Speed	921600

4. Click Upload

Development Platforms

1. Arduino IDE
2. PlatformIO

Related Videos

Key Features

• ESP32-WROVER-E dual-core Xtensa LX6 @ 240 MHz, Wi-Fi + Bluetooth 4.2
• Mini PCIe (mPCIe) socket for interchangeable cellular modem modules
• Compatible with SIM7000G, SIM7600X, and other mPCIe cellular modules
• AXP2101 PMU for ESP32 and modem power management
• Nano SIM card slot
• USB-C for programming and power
• 4 MB Flash, 8 MB PSRAM
• Battery connector for portable operation

Specifications

Parameter	Value
SOC	ESP32-WROVER-E (Xtensa dual-core LX6, 240 MHz)
Flash	4 MB
PSRAM	8 MB
Wireless	Wi-Fi 802.11 b/g/n, Bluetooth 4.2
Cellular	Via mPCIe module (SIM7000G, SIM7600X, etc.)
PMU	AXP2101
SIM	Nano SIM card slot
USB	1 × USB-C
Battery	JST connector for Li-Ion/Li-Po

Pin Diagram

Modem UART

Signal	GPIO
UART TX (to modem)	27
UART RX (from modem)	26
Modem PWR KEY	4
Modem RESET	5
Modem POWER ON	25

I2C (AXP2101)

Signal	GPIO
SDA	21
SCL	22

Dimensions

Schematic

• LilyGo-T-PCIE GitHub Repository (hardware)

Datasheet

• ESP32 Datasheet
• AXP2101 Datasheet

Software Libraries

• LilyGo-T-PCIE GitHub Repository

Dependent Libraries

• TinyGSM
• XPowersLib
• PubSubClient

FAQ

• Q. Which cellular modules are compatible with the T-PCIE mPCIe slot? A. The T-PCIE has been tested with SIM7000G (NB-IoT/Cat-M/GPRS+GPS) and SIM7600X (LTE Cat-4). Other standard mPCIe-form modems may work but are not officially supported.

• Q. Does the mPCIe slot carry USB or PCIe signals? A. The mPCIe connector on the T-PCIE uses UART signals routed to the ESP32 (not full PCIe). This is the standard approach for cellular modem integration in embedded designs.

• Q. Do I need an external antenna? A. Yes. A cellular antenna must be connected to the modem's antenna connector (IPEX/U.FL) for reliable network connectivity. A GPS antenna is also required if using a module with GPS.

Changelog

Version	Date	Notes
V1.0		Initial release