# LILYGO T-QT C6

> Tiny ESP32-C6 dev board with WiFi 6, BLE 5, Zigbee/Thread (802.15.4), 0.85" 128×128 touchscreen, LiPo battery charging, and breathing LED in a thumbnail-sized form factor.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** dev-board
- **Price:** ~$13.25
- **Product Readiness:** developer
- **CPU:** RISC-V single-core @ 160MHz
- **CPU Architecture:** RISC-V
- **CPU Cores:** 1
- **RAM:** 512KB SRAM
- **Flash:** 4MB
- **USB:** USB-C
- **Power:** 5V + LiPo
- **Operating Voltage:** 3.3V
- **Battery:** LiPo (user-supplied, 1.25mm JST)
- **Charging Port:** USB-C
- **Antenna:** Built-in PCB antenna
- **Display:** 0.85" TFT LCD 128×128

## Connectivity

- **Wifi:** 802.11ax (WiFi 6)
- **Bluetooth:** BLE 5.0
- **Zigbee:** Zigbee 3.0
- **Thread:** Thread 1.3

## Open Source

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

## Certifications

CE, FCC

## Compatible Firmware

arduino, esp-idf, micropython, esphome

## Use Cases

- smart-home
- iot-prototyping
- wearable-display

## Components

- **ESP32-C6** (mcu): Single-core RISC-V at 160MHz with WiFi 6 (802.11ax), BLE 5.0, and IEEE 802.15.4 for Zigbee 3.0 and Thread. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-c6_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export)
- **GC9107** (display-driver): Compact TFT LCD driver supporting 128×128 resolution for small wearable and IoT displays. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-QT-C6&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export)
- **ETA4662** (battery-charger): I2C LiPo charger with integrated power path management for portable battery-powered designs. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-QT-C6&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export)

## Protocols

- **SPI**: CLK: GPIO6, MOSI: GPIO7, CS: GPIO14
- **I2C**: SDA: GPIO4, SCL: GPIO5
- **UART**: TX: GPIO16, RX: GPIO17

## GPIO Map

| Pin | Name | Type | Functions |
|-----|------|------|-----------|
| GPIO4 | I2C SDA | I2C | digital-input, digital-output |
| GPIO5 | I2C SCL | I2C | digital-input, digital-output |
| GPIO6 | SPI CLK | SPI | digital-output |
| GPIO7 | SPI MOSI | SPI | digital-output |

## Description

## Overview

The LILYGO T-QT C6 is a tiny ESP32-C6 development board — about the size of two thumbnails — offering WiFi 6 (802.11ax), BLE 5.0, and IEEE 802.15.4 (Zigbee 3.0 / Thread 1.3) in a compact package with a built-in 0.85-inch 128×128 TFT LCD touchscreen.

The ESP32-C6's 802.15.4 radio opens up direct Zigbee and Thread mesh networking without any additional hardware, enabling native integration with Matter smart home ecosystems. The ETA4662 battery charger IC provides LiPo charging and power path management, while a breathing LED adds visual feedback for status indication without consuming GPIO.

Despite its tiny footprint, the T-QT C6 exposes SPI, I2C, and UART headers for sensor expansion. The combination of WiFi 6 efficiency, Zigbee native support, and ultra-compact size makes it perfect for wireless sensor nodes, Matter bridge devices, and miniature display-equipped IoT gadgets.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-qt-c6&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export) — $13.25

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-qt-c6&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-QT-C6&ref=openhardware.directory&product=lilygo-t-qt-c6&source=md-export)

## Tags

`esp32-c6`, `wifi6`, `zigbee`, `thread`, `matter`, `tiny`, `lilygo`

## Images

![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/98cad4b0f448.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/bf7f44a27bcc.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/b75685fb1ae6.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/35e597b6d731.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/a826f25407b1.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/bd8678242420.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/8b88c39214b9.jpg)
![LILYGO T-QT C6](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-qt-c6/217e07960809.jpg)

> **Battery Powered:** Li-Po

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