LILYGO T-Dongle S3
ESP32-S3 USB-A dongle with a 0.96-inch ST7735 color display (80×160), 16MB flash, WiFi, and BLE 5.0 — a compact plug-in development stick for IoT, media, and wireless sensor nodes.
$10.99
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Specifications
Components
Espressif ESP32-S3 dual-core Xtensa LX7 at 240MHz with WiFi, BLE 5.0, and native USB OTG.
Sitronix ST7735 TFT LCD driver for the 0.96-inch 80×160 color panel via 4-wire SPI.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-Dongle S3 packs an ESP32-S3 Xtensa LX7 processor into a USB-A stick form factor, complete with a 0.96-inch ST7735 IPS color display at 80×160 pixels. The full-color 65K display and USB-A plug make it ideal for direct-plugging into computers, TVs, or USB hubs to run wireless applications or display output without any additional cabling.
With 16MB flash and WiFi 802.11 b/g/n plus BLE 5.0, the T-Dongle S3 can run web servers, Bluetooth scanners, badge-style applications, and USB HID or CDC devices. A microSD (TF) card slot provides expandable storage, though note this is listed as non-functional on some hardware revisions — check the GitHub repository for your specific variant.
A boot button enables firmware flashing via the native USB port. The T-Dongle S3 supports Arduino IDE, PlatformIO, and MicroPython, and the GitHub repository provides examples for display, WiFi, and Bluetooth applications.
Use Cases
4IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Crowd Counting
Estimating the number of people in an area by detecting WiFi and Bluetooth probe requests from mobile devices.
Digital Signage
Driving displays for advertising, information kiosks, or menu boards with 4K video and dynamic content.
Smart Home
Home automation devices for controlling lighting, climate, security, and appliances.
Resources
Where to Buy
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