# LILYGO T5s 2.7 inch E-Paper

> LILYGO T5s is an ESP32 development board with a 2.7-inch 264×176 e-paper display, onboard I2S audio (MAX98357A amplifier + ICS43434 MEMS mic), 500mA battery management, and TF card support.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32
- **Price:** ~$22.94
- **Product Readiness:** developer
- **CPU:** Xtensa LX6 dual-core @ 240MHz
- **CPU Architecture:** Xtensa LX6 dual-core
- **CPU Cores:** 2
- **RAM:** 520KB SRAM
- **Flash:** 4MB
- **USB:** Micro-USB
- **Power:** 5V + LiPo
- **Operating Voltage:** 3.3V
- **Battery:** LiPo (user-supplied, 1.25mm JST)
- **SD Card:** microSD
- **Display:** 2.7" E-Paper 264×176

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2

## Open Source

- **Firmware:** Yes
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

arduino, platformio, micropython, esphome

## Use Cases

- e-reader
- weather-display
- smart-home-dashboard
- digital-signage
- iot
- voice-assistant

## Components

- **ESP32-D0WDQ6** (mcu): Espressif ESP32-D0WDQ6 REV1 dual-core Xtensa LX6 microcontroller with integrated WiFi and Bluetooth 4.2. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)
- **MAX98357A** (audio): Maxim MAX98357A filterless Class-D audio amplifier receiving I2S audio data directly from the ESP32. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.analog.com%2Fmedia%2Fen%2Ftechnical-documentation%2Fdata-sheets%2FMAX98357A-MAX98357B.pdf&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)
- **ICS43434** (microphone): TDK InvenSense ICS43434 single-channel MEMS microphone with I2S output connected to the ESP32. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Finvensense.tdk.com%2Fwp-content%2Fuploads%2F2016%2F02%2FDS-000069-ICS43434-v1.2.pdf&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)
- **CP2102** (usb-serial): Silicon Labs CP2102 USB to UART bridge for programming and serial communication with the ESP32. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.silabs.com%2Fdocuments%2Fpublic%2Fdata-sheets%2FCP2102-9.pdf&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)

## Protocols

- **SPI**
- **I2C**
- **I2S**
- **UART**

## GPIO Map

| Pin | Name | Type | Functions |
|-----|------|------|-----------|
| IO37 | — | — | — |
| IO38 | — | — | — |
| IO39 | — | — | — |

## Available Software

- **[GxEPD2](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FZinggJM%2FGxEPD2&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)**
- **[LilyGo-T5-Epaper-Series](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FLilyGo-T5-Epaper-Series&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)**
- **[TTGO-T5S-Epaper](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FLilyGO%2FTTGO-T5S-Epaper&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)**

## Description

## Overview

The LILYGO T5s 2.7 inch E-Paper is a feature-rich ESP32 development board combining wireless connectivity with an ultra-low-power 2.7-inch monochrome e-paper display. It integrates a MAX98357A Class-D I2S amplifier and an ICS43434 MEMS microphone for audio-capable IoT applications. A 500mA battery management IC with short-circuit, overcharge, and overflow protection manages LiPo charging via USB. Four LEDs provide real-time battery status. The board exposes GROVE and GPIO headers, a TF card slot for expanded storage, and a power button supporting single-click start and double-click shutdown. Compatible with the Arduino IDE and the GxEPD2 / LilyGo-T5-Epaper-Series libraries.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft5s-2-7inch-e-paper&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export) — $22.94

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft5s-2-7inch-e-paper&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FLilyGo-T5-Epaper-Series&ref=openhardware.directory&product=lilygo-t5s-2-7inch-e-paper&source=md-export)

## Tags

`e-paper`, `e-ink`, `esp32`, `2.7-inch`, `audio`, `i2s`, `max98357a`, `ics43434`, `battery`, `tf-card`

## Images

![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/463bde4b7e3d.jpg)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/08b2511d4f0f.jpg)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/9f115ae5f6c6.png)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/c1f39546f62e.png)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/6528377d4c88.jpg)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/ad060567c6b1.jpg)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/241d38763e57.jpg)
![LILYGO T5s 2.7 inch E-Paper](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t5s-2-7inch-e-paper/ee5814539400.jpg)

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