LILYGO T3-TXCO

T3-TXCO

Introduction

LILYGO LORA32 TCXO is a wireless communication module based on LoRa technology, supporting dual-band frequencies (868/915MHz) to accommodate IoT applications across various global regions. The module is equipped with a temperature-compensated crystal oscillator (TCXO), which significantly improves frequency stability—ideal for high-precision communication in environments with large temperature fluctuations.

Its design integrates LoRa modulation technology with a 32-bit microcontroller, enabling long-range, low-power data transmission along with local processing capabilities. This makes it well-suited for applications such as smart agriculture, remote sensing, and industrial monitoring.

Appearance and function introduction

Appearance

summary

Pinmap

summary

Module Information and Specifications

Description

Component Description
MCU ESP32-Pico-D4
FLASH 4MB
PSRAM 2MB
Display 1306 IIC-driver OLED
LoRa SX1276: 868, 915 MHz
Storage TF Card
Wireless Wi-Fi + Bluetooth V4.2 + BLE
USB 1 × USB Port and OTG (Type-C interface)
IO Interface 2×13 dual-row expansion IO interface, 2.54mm pitch
Expansion Interfaces 1 × Antenna Socket, 1 × Antenna Connector, 2 × QWIIC Interfaces

Buttons | 1 × RESET Button + 1 × BOOT Button
|Power Supply | USB / 3.7V Li-ion Battery, Battery Switch, Solar Input Interface
|Mounting Holes | 2 × 2mm Positioning Holes
|Dimensions | 66 × 27 × 13 mm

Github:T3-TXCO

Schematic Diagram

T3-TXCO

Dependency Libraries

Software Design

Arduino Set Parameters

Setting Value
Board ESP32 Dev Module
Port Your port
CPU Frequency 240MHZ(WiFi/BT)
Core Debug Level None
Erase All Flash Before Sketch Upload Disable
Events Run On Core1
Flash Frequency 80MHZ
Flash Mode QIO
Flash Size 4MB(32Mb)
JTAG Adapter Disabled
Arduino Runs On Core1
Partition Scheme Default 4M Flash with spiffs(1.2M APP/1.5MB SPIFFS)
PSRAM Disable
Upload Speed 921600
Programmer Esptool

Development Platform

  1. VS Code
  2. Arduino IDE
  3. Platform IO

Product Technical Support