# LILYGO T-Mini E-Paper S3

> LILYGO T-Mini E-Paper S3 is a compact ESP32-S3 board with a 1.02-inch 128×80 e-paper display, 4MB flash, 2MB PSRAM, WiFi, BLE 5, TF card slot, and support for 18350 battery. Available in 868MHz and 915MHz variants.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32-S3
- **Price:** ~$40.81
- **Product Readiness:** developer
- **CPU:** Xtensa LX7 dual-core @ 240MHz
- **CPU Architecture:** Xtensa LX7 dual-core
- **CPU Cores:** 2
- **RAM:** 512KB SRAM
- **PSRAM:** 2MB
- **Flash:** 4MB
- **USB:** USB-C
- **Power:** 5V + Li-Ion 18650
- **Operating Voltage:** 3.3V
- **Battery:** 18350 Li-Ion (user-supplied)
- **Antenna:** Built-in PCB antenna
- **SD Card:** microSD
- **Display:** 1.02" E-Paper 128×80

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 5.0

## Open Source

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

## Compatible Firmware

arduino, platformio

## Use Cases

- iot
- digital-signage
- weather-display
- smart-home-dashboard
- wearable

## Components

- **ESP32-S3FN4R2** (mcu): Espressif ESP32-S3FN4R2 dual-core Xtensa LX7 MCU with 4MB flash, 2MB PSRAM, WiFi 802.11 b/g/n, and Bluetooth 5 LE. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-mini-epaper-s3&source=md-export)
- **GDGDEWG102T4** (display-driver): Good Display GDGDEWG102T4 e-paper display driver for 128×80 pixel monochrome output. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.good-display.com%2Fproduct%2F426.html&ref=openhardware.directory&product=lilygo-t-mini-epaper-s3&source=md-export)

## Protocols

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

## Available Software

- **[GxEPD2](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FZinggJM%2FGxEPD2&ref=openhardware.directory&product=lilygo-t-mini-epaper-s3&source=md-export)**

## Description

## Overview

The LILYGO T-Mini E-Paper S3 is a miniature development board based on the ESP32-S3FN4R2 dual-core LX7 processor. Its defining feature is a tiny 1.02-inch e-paper display (128×80 pixels, GDGDEWG102T4 driver) that delivers ultra-low-power status and text output in a very small form factor. The board integrates 2.4GHz WiFi and Bluetooth 5 LE for wireless connectivity, 4MB flash, 2MB PSRAM, and a TF card slot for expanded storage. An 18350 Li-Ion battery (not included) can be connected for portable operation. Two frequency variants are offered (868MHz and 915MHz), hinting at optional LoRa radio integration. Compatible with Arduino IDE and PlatformIO.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-mini-epaper-s3&ref=openhardware.directory&product=lilygo-t-mini-epaper-s3&source=md-export) — $40.81

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-mini-epaper-s3&ref=openhardware.directory&product=lilygo-t-mini-epaper-s3&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-t-mini-epaper-s3&source=md-export)

## Tags

`e-paper`, `e-ink`, `esp32-s3`, `1.02-inch`, `compact`, `18350-battery`, `tf-card`, `ble5`

## Images

![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/586e6c26ae56.jpg)
![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/d7988ebd3f3b.jpg)
![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/935a19878da0.jpg)
![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/fd67395c1fec.jpg)
![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/017650ada4fc.jpg)
![LILYGO T-Mini E-Paper S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-mini-epaper-s3/aa15f39401df.png)

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