LILYGO T5S 2.7 Inch E-Paper

Overview

The LILYGO T5S is an ESP32-based development board centered on a 2.7-inch e-paper display with integrated audio capabilities. The black-and-white e-ink panel offers 264x176 pixel resolution with a 6-second full refresh time, making it well-suited for low-power information display applications such as weather stations, clocks, and notification boards.

Uniquely, the T5S includes an I2S audio subsystem featuring the MAX98357A Class-D DAC amplifier and ICS43434 MEMS microphone, enabling voice-aware IoT applications. A TF card slot and Grove interface expand storage and peripheral connectivity. The 500mA battery management system with protection circuitry (short circuit, overcharge, overvoltage) and a physical power button make the board suitable for battery-powered deployments.

Firmware Compatibility

The T5S supports Arduino IDE and ESP-IDF. E-paper display libraries for the 2.7-inch panel and I2S audio libraries are available in the GitHub repository at LilyGo-T5-ink-series. The CP2102 USB-UART chip is well-supported across all major operating systems.

Flashing Guide

1. Install CP2102 USB drivers from Silicon Labs if required.
2. Connect via USB cable.
3. Install ESP32 Arduino core via Boards Manager.
4. Select "ESP32 Dev Module" with 4MB Flash.
5. Clone https://github.com/Xinyuan-LilyGO/LilyGo-T5-ink-series for examples.
6. Upload your sketch and press the power button to start the board.