T-PCIE Quick Start

Overview

T-PCIE is a modular development platform that accommodates different Mini PCIe cellular/communication modules.

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Arduino

PlatformIO (Recommended)

1. Install VS Code and the PlatformIO IDE extension
2. Clone the repository:

   git clone https://github.com/Xinyuan-LilyGO/LilyGo-Modem-Series.git

3. Open platformio.ini and select the T-PCIE environment
4. Click ✓ to build, connect via USB, click → to upload

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Arduino IDE

Board Settings

Setting	Value
Board	ESP32 Dev Module
Upload Speed	921600
CPU Frequency	240 MHz (WiFi)
Flash Size	4 MB (32Mb)
PSRAM	Enabled

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Peripheral Examples

Cellular Data via Mini PCIe Module (TinyGSM)

#define TINY_GSM_MODEM_SIM7600  // Change to match your installed module
#include <TinyGsmClient.h>

// T-PCIE modem UART: RX=26, TX=27, PWR_KEY=4
HardwareSerial modemSerial(1);
TinyGsm modem(modemSerial);

void setup() {
  Serial.begin(115200);
  modemSerial.begin(115200, SERIAL_8N1, 26, 27);
  // Power on the PCIe module
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH); delay(1000);
  digitalWrite(4, LOW);  delay(2000);

  modem.restart();
  Serial.println("Modem: " + modem.getModemInfo());
}

void loop() { delay(1000); }

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FAQ

Q: Which Mini PCIe modules are supported?
A: T-PCIE supports various SIMCom and Quectel cellular modules in Mini PCIe form factor. Check the hardware page for the confirmed compatible module list.

Q: Upload keeps failing?
A: Hold BOOT, press and release RST, then release BOOT to enter download mode.