T-Dongle-S3-Dual get it now
Overview
T-Dongle-S3-Dual is the dual ESP32-S3 version in the T-Dongle-S3 series, using a USB Type-A dongle form factor. It integrates two ESP32-S3 MCUs. Each MCU has 16MB Quad-SPI Flash and 512KB SRAM, with no PSRAM. Onboard peripherals include APA102 RGB LED, TF card slot, and BOOT button. It is suitable for dual-MCU communication, USB gadgets, portable displays, and wireless IoT experiments.
Quick Start
| Example | PlatformIO/Arduino | ESP-IDF | Description |
|---|---|---|---|
| T-Dongle-S3 | ✓ | Dual, display, TF card, LED, QWIIC examples |
PlatformIO
- Install Visual Studio Code and PlatformIO IDE
- Clone and open the official repository:
bash
git clone https://github.com/Xinyuan-LilyGO/T-Dongle-S3.git- Select the Dual environment and example in
platformio.ini - Click Build, plug in the device, then click Upload
Arduino
| Arduino IDE Setting | Value |
|---|---|
| Board | ESP32S3 Dev Module |
| USB CDC On Boot | Enable |
| CPU Frequency | 240MHz (WiFi) |
| Flash Mode | QIO 80MHz |
| Flash Size | 16MB (128Mb) |
| Partition Scheme | 16M Flash (3MB APP/9.9MB FATFS) |
| PSRAM | Disabled |
| Upload Speed | 921600 |
| USB Mode | Hardware CDC and JTAG |
Note: Both ESP32-S3 MCUs on T-Dongle-S3-Dual have no PSRAM. Set PSRAM to Disabled in Arduino IDE.
Key Features
- Dual ESP32-S3 MCUs
- 16MB Quad-SPI Flash and 512KB SRAM per MCU, no PSRAM
- USB Type-A dongle form factor
- APA102 RGB LED
- TF card slot using SDMMC pins
- BOOT button for custom functions or download mode
Specifications
| Parameter | Value |
|---|---|
| MCU | ESP32-S3 × 2 |
| Flash | 16MB (Quad-SPI) × 2 |
| SRAM | 512KB × 2 |
| PSRAM | No PSRAM |
| Wireless | Wi-Fi 802.11 b/g/n, Bluetooth 5 LE |
| RGB LED | APA102 × 1 |
| Storage | TF card slot |
| USB Input Voltage | 4.8V ~ 5.5V |
| USB Max Current | 1000mA |
| USB | USB Type-A plug |
Pin Diagram
ESP Core 1
| Name | GPIO |
|---|---|
| Core 1 RGB DIN | GPIO40 |
| Core 1 RGB CLK | GPIO39 |
| Core 1 SDMMC D0 | GPIO14 |
| Core 1 SDMMC D1 | GPIO17 |
| Core 1 SDMMC D2 | GPIO21 |
| Core 1 SDMMC D3 | GPIO18 |
| Core 1 SDMMC CLK | GPIO12 |
| Core 1 SDMMC CMD | GPIO16 |
| Core 1 Button | GPIO0 |
ESP Core 2
| Name | GPIO |
|---|---|
| Core 2 RGB DIN | GPIO40 |
| Core 2 RGB CLK | GPIO39 |