T-LoRa Dual Quick Start

Required Libraries

Library	Version	Source
RadioLib	Latest	GitHub

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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-LoRa-Series.git

3. Open platformio.ini, uncomment the T-LoRa-Dual environment
4. Click ✓ to build, connect via USB-C, click → to upload

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Arduino IDE

Board Settings

Setting	Value
Board	ESP32S3 Dev Module
Upload Speed	921600
USB CDC On Boot	Enable
CPU Frequency	240 MHz (WiFi)
Flash Size	16 MB (128Mb)
Partition Scheme	16M Flash (3MB APP/9.9MB FATFS)
PSRAM	OPI PSRAM

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Peripheral Examples

LoRa Radio 1 (SX1262 — 868/915 MHz)

#include <RadioLib.h>

// Radio 1: CS=10, IRQ=11, RST=12, BUSY=13
SX1262 radio1 = new Module(10, 11, 12, 13);

void setup() {
  Serial.begin(115200);
  int state = radio1.begin(915.0);
  if (state != RADIOLIB_ERR_NONE) {
    Serial.print("Radio1 init failed: "); Serial.println(state);
    while (true);
  }
  radio1.setOutputPower(22);
  Serial.println("Radio 1 ready");
}

void loop() {
  int state = radio1.transmit("Hello from Radio 1");
  if (state == RADIOLIB_ERR_NONE) Serial.println("Radio1 Sent OK");
  delay(2000);
}

LoRa Radio 2 (SX1262 — 433 MHz)

#include <RadioLib.h>

// Radio 2: CS=4, IRQ=5, RST=6, BUSY=7
SX1262 radio2 = new Module(4, 5, 6, 7);

void setup() {
  Serial.begin(115200);
  int state = radio2.begin(433.0);
  if (state != RADIOLIB_ERR_NONE) {
    Serial.print("Radio2 init failed: "); Serial.println(state);
    while (true);
  }
  radio2.setOutputPower(22);
  Serial.println("Radio 2 ready");
}

void loop() {
  String received;
  int state = radio2.receive(received);
  if (state == RADIOLIB_ERR_NONE) {
    Serial.print("Radio2 Received: "); Serial.println(received);
  }
  delay(100);
}

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FAQ

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

Q: What does "Dual" mean in T-LoRa Dual?
A: T-LoRa Dual integrates two LoRa radio modules on a single board, enabling simultaneous dual-band or dual-channel LoRa communication.