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Adafruit Qualia ESP32-S3 for TTL RGB-666 Displays
The Adafruit Qualia ESP32-S3 for TTL RGB-666 Displays is a powerful development board designed for driving high-resolution RGB TFT displays using the ESP32-S3 microcontroller. It is specially built for “dot clock” RGB-666 TFT displays, making it ideal for advanced GUI projects, smart dashboards, multimedia interfaces, IoT control panels, and animated display applications.
Powered by the ESP32-S3 with 16MB Flash and 8MB Octal PSRAM, the board provides enough memory and processing capability to handle large frame buffers and smooth graphics rendering at around 30 FPS. Unlike traditional SPI displays, RGB-666 displays require continuous pixel data streaming, and the ESP32-S3’s built-in LCD peripheral makes this possible without external display controllers.
The board features a 40-pin RGB-666 display connector compatible with many square, round, and bar-style TFT displays. It supports popular display resolutions including 480×480, 720×720, and 960×320 panels. Capacitive touch overlays are also supported through the onboard I2C interface, enabling responsive touchscreen applications.
Note: Display Not Included
Features
- Powered by ESP32-S3 dual-core Wi-Fi + Bluetooth LE microcontroller
- Supports TTL RGB-666 “Dot Clock” TFT LCD displays
- Compatible with square, round, and bar-type RGB displays
- 40-pin RGB-666 display connector interface
- Built-in LCD RGB peripheral for smooth high-speed graphics
- Supports resolutions up to 720×720 and 960×320
- 16MB Flash memory and 8MB Octal PSRAM for large frame buffers
- Near 30 FPS full-screen display refresh capability
- Supports capacitive touch displays via onboard I2C interface
- USB Type-C port for power, programming, and native USB communication
- STEMMA QT / Qwiic connector for easy sensor expansion
- PCA9554A I/O expander for display initialization and GPIO management
- Constant-current TFT backlight driver using TPS61169
- Adjustable backlight current from 25mA to 200mA
- Hardware UART TX pin for debugging
- SPI interface support for display initialization and peripherals
- Compatible with Arduino IDE and CircuitPython
- Supports multimedia graphics, animations, dashboards, and HMI projects
- Deep sleep support for low-power applications
Specifications
- Microcontroller: ESP32-S3
- Wireless Connectivity: 2.4GHz Wi-Fi + Bluetooth LE
- Flash Memory: 16MB
- PSRAM: 8MB Octal PSRAM
- Display Interface: TTL RGB-666 Parallel Interface
- Display Connector: 40-Pin FPC Connector
- Supported Color Format: RGB 5-6-5 / RGB-666
- Supported Display Types: Round, Square, Bar TFT Displays
- Typical Supported Resolutions: 480×480, 720×720, 960×320
- Display Signals: HSYNC, VSYNC, DE, Pixel Clock
- Touch Support: Capacitive Touch via I2C
- USB Interface: USB Type-C
- Expansion Interface: STEMMA QT / Qwiic
- I/O Expander: PCA9554A
- Backlight Driver: TPS61169
- Backlight Current Range: 25mA to 200mA
- Logic Voltage: 3.3V
- Programming Support: Arduino IDE, CircuitPython
- Debug Interface: UART TX
- Normal Operating Current: ~170mA
- Backlight Off Current: ~8mA
- Deep Sleep Current: <1mA
- Dimensions: 57.3mm x 44.4mm x 7.1mm / 2.3" x 1.7" x 0.3"
Package Includes
- 1x Qualia ESP32-S3 for TTL RGB-666 Displays
