T-QT C6 get it now

Overview

T-QT C6 is a compact smart wearable development kit based on ESP32-C6-MINI-1U (4 MB Flash, 4 MB PSRAM). Features a 0.85-inch GC9107 TFT LCD (128 × 128), CST816T touch, LSM6DSLTR 6-axis IMU (V1.1+), SGM41562 PMU (V1.2) / ETA4662 (V1.0–V1.1), breathing light, QWIIC interface, and battery support. Supports Wi-Fi 6 + BT 5.0. 33 × 24 × 44.5 mm.

Quick Start

Example Support

Example	PlatformIO/Arduino	ESP-IDF	Description
Battery_Voltage	✓		Battery voltage reading
Breathing_Light	✓		Breathing light effect
CST816T	✓		Touch gesture demo
Deep_Sleep	✓		Deep sleep (172.61 µA)
Light_Sleep	✓		Light sleep (516.81 µA)
IMU	✓		6-axis IMU example
GFX	✓		Display graphics test
Lvgl_CIT_SGM41562	✓		Factory test (V1.2)
Lvgl_CIT_ETA4662	✓		Factory test (V1.0–V1.1)

PlatformIO

1. Install Visual Studio Code and Python
2. Search for and install the PlatformIO IDE extension in VS Code
3. Clone the T-QT-C6 repository
4. Open platformio.ini and under [platformio] uncomment the desired environment
5. Click ✓ to compile, click → to upload

Arduino

1. Install Arduino IDE
2. Add ESP32 boards URL: https://espressif.github.io/arduino-esp32/package_esp32_index.json
3. Copy all directories from the project libraries folder to your Arduino libraries folder
4. In Tools → Board, configure:

Arduino IDE Setting	Value
Board	ESP32C6 Dev Module
Upload Speed	921600
CPU Frequency	160 MHz
Flash Mode	QIO
Flash Size	4MB (32Mb)
Core Debug Level	None
Partition Scheme	Huge APP (3MB No OTA/1MB SPIFFS)

5. Click Upload

Development Platforms

1. PlatformIO
2. Arduino IDE
3. MicroPython

Video

Key Features

• ESP32-C6-MINI-1U, 4 MB Flash, 4 MB PSRAM, Wi-Fi 6 + BT 5.0
• 0.85-inch GC9107 TFT (128 × 128), CST816T capacitive touch
• LSM6DSLTR 6-axis IMU, SGM41562 PMU, breathing light, QWIIC, 33 × 24 × 44.5 mm

Product Parameters

Feature	Specification
MCU	ESP32-C6-MINI-1U
Flash	4 MB
PSRAM	4 MB
Wi-Fi	2.4 GHz 802.11 b/g/n (Wi-Fi 6)
Bluetooth	Bluetooth 5.0 LE
Display	0.85-inch GC9107 TFT, 128 × 128 (SPI)
Touch	CST816T Capacitive (I2C)
IMU	LSM6DSLTR 6-axis (V1.1+)
Power Management	SGM41562 (V1.2) / ETA4662 (V1.0–V1.1)
LED	WS2812B/C Breathing Light
USB	1 × Type-C (USB + OTG)
Expansion	QWIIC 4-pin + 2×2×7 IO
Buttons	RESET + BOOT
Dimensions	33 × 24 × 44.5 mm

Power Consumption Reference

Hardware	Mode / Test Firmware	Current
T-QT-C6 V1.2	Light sleep	553 µA
T-QT-C6 V1.2	Deep sleep	170 µA

Measurements were taken at the battery input with the official sleep firmware. See the T-QT-C6 V1.2 Power Consumption Test Log. Results for V1.0-V1.1 may differ because they use a different PMU.

Pin Diagram

Pin Mapping

Name	GPIO
Display MOSI	IO15
Display SCLK	IO18
Display RST	IO20
Display BL	IO2
Display CS	IO14
Display DC	IO19
Touch RST	IO23
Touch INT	IO7
Touch / IMU SDA	IO21
Touch / IMU SCL	IO22
Battery ADC Control	IO8
Battery ADC Data	IO6
Breathing Light	IO9
IMU INT1 (V1.1–V1.2)	IO0
IMU INT2 (V1.1–V1.2)	IO1
IMU I2C Address Mode (V1.1–V1.2)	IO3
SGM41562 INT (V1.2)	IO4

Dimension Diagram

Schematic

• T-QT-C6 V1.2 Schematic

Datasheet

• ESP32-C6-MINI-1U Datasheet
• SGM41562 Datasheet
• LSM6DSL Datasheet

Software Development

• T-QT-C6 GitHub Repository

Dependent Libraries

• Arduino_DriveBus-1.1.16
• Arduino_GFX-1.3.7
• lvgl-8.3.5

FAQ

• Q. Why does my board keep failing to upload programs? A. Hold BOOT and press RST once, release RST while still holding BOOT, then start the upload.

• Q. How to achieve low power operation? A. On V1.2, the official test measured approximately 170 µA in deep sleep and 553 µA in light sleep. V1.0-V1.1 use a different PMU and may differ.

• Q. Which touch gestures are supported? A. CST816T supports swipe up/down/left/right, single-click, double-click, and long-press.

Version History

Version	Release Date	Update Description
T-QT-C6 V1.0	2023-12-20	Initial version
T-QT-C6 V1.1	2024-03-27	Added battery backplane support
T-QT-C6 V1.2	2024-06-13	Changed PMU to SGM41562
T-QT-C6 Battery V1.2	2025-08-11	Modified backplane pins, 2-pin 1.25 mm pitch battery connector