LilyGo T-Dongle ESP32-S2 Module with Display

The LilyGo T-Dongle-S2 is a USB stick with the ESP32-S2 and a 1.14 inch IPS colour display with 135 × 240 pixels (ST7789V). The ESP32-S2 has Wi-Fi but no Bluetooth, and its own USB interface (USB OTG): on the computer it can appear, for example, as a keyboard, storage device or serial port. The data lines of the USB-A plug can be disconnected with a DIP switch. There is also a USB socket for another USB device, a microSD card slot and a Grove connector (HY2.0-4P).

Recommended alternative with ESP32-S3: LilyGo T-Dongle-S3 ESP32 with USB and Display

Recommended Accessories:

• 8GB MicroSDHC memory card Class 10 UHS-I incl. SD adapter

Features:

• ESP32-S2, single-core Xtensa LX7
• Wi-Fi 802.11 b/g/n, no Bluetooth
• USB OTG directly on the ESP32-S2
• IPS display 1.14 inch, 135 × 240 pixels, ST7789V controller
• USB-A plug, data lines can be switched off with a DIP switch
• USB socket for another USB device
• microSD card slot
• Grove connector (HY2.0-4P)
• Boot and reset buttons
• Plastic housing included
• Pinout as an image in the picture gallery

Application Examples:

• USB stick with display, for example for status values on the computer
• USB input devices such as macro keys or keyboards
• Data logger with microSD card
• Integration into Home Assistant with ESPHome

Documentation:

• T-Dongle-S2 on GitHub (LilyGo, English)
• ESPHome documentation: ESP32 Platform

Technical Data:

• Manufacturer: LilyGo
• Manufacturer SKU: H557
• Microcontroller: ESP32-S2
• CPU: Xtensa single-core LX7
• Radio: Wi-Fi 802.11 b/g/n
• Display: IPS, 1.14 inch, 135 × 240 pixels, ST7789V
• Connectors: USB-A plug, USB socket, Grove HY2.0-4P, microSD
• Logic voltage: 3.3 V
• Dimensions: 74 × 28 × 15 mm
• Weight: 40 g

Scope of Delivery:

• 1× LilyGo T-Dongle ESP32-S2 Module with Display
• 1× plastic housing