Adafruit
Round 2.8in RGB-666 TTL TFT Display - 480x480 No Touch
· MPN: ADA5852
This round TFT display is made for advanced projects that can drive a high-resolution RGB display directly. It has a 2.8" diagonal screen with 480x480 16-bit...
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This round TFT display is made for advanced projects that can drive a high-resolution RGB display directly. It has a 2.8" diagonal screen with 480x480 16-bit full-colour pixels, using an IPS panel for good colour even when viewed off-axis.
The display uses an ST7701S driver with SPI for configuration and TTL RGB ‘dot clock’ data for pixels. You cannot draw pixels over SPI, so it needs a host that specifically supports RGB-666 display output, such as an ESP32-S3 with octal PSRAM or a Raspberry Pi using direct DPI or a suitable intermediary chip.
Please note that this is just the display module. It does not include a touchscreen or PCB, and although it has a 40-pin connector, it does not share the same pinout as standard rectangular 800x480 or 480x272 TFT displays.
Specifications:
- Display size: 2.8" diagonal-sized display
- Resolution: 480x480
- Colour depth: 16-bit full-color pixels
- Display type: IPS display
- Viewing angle: up to 80 degrees off-axis in any direction
- TFT driver: ST7701S
- Configuration interface: SPI
- Pixel data interface: TTL RGB 'dot clock' data
- RGB display support: RGB-666 displays
- Connector: 40-pin connector
- Touchscreen: No touchscreen
- PCB included: No PCB is included
- Product Dimensions: 102.0mm x 73.0mm x 2.5mm / 4.0" x 2.9" x 0.1"
Best suited to experienced makers working with compatible driver boards, such as the Adafruit Qualia ESP32-S3 for TTL RGB-666 Display.
Jargon buster
Plain-language definitions for the technical terms used above.
- Colour depth
- Colour depth describes how many different colours a display can show. A 65K-colour display can show about 65,000 colours, which is useful for icons, graphs, and simple full-colour interfaces but is less detailed than modern phone or computer screens.
- ESP32
- ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- IPS
- IPS is a type of LCD panel that keeps colours and contrast more consistent when viewed from an angle. This matters for small displays that may be mounted in a dashboard, handheld project, or enclosure where the viewer is not always looking straight on.
- octal PSRAM
- Octal PSRAM is external pseudo-static RAM that uses an eight-line data interface for higher bandwidth than simpler single- or quad-line connections. It provides extra working memory for tasks that exceed a microcontroller's built-in RAM, such as large frame buffers, camera or image data, audio, or sizeable data sets.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
- RGB-666
- A parallel display colour interface that sends 6 bits each for red, green and blue, using many pins to stream pixel data to a screen. It matters because RGB-666 panels need a driver board with the right connector, timing signals, and software setup, rather than the simpler wiring used by small SPI displays.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- TFT
- A thin-film transistor display is a common type of colour LCD used for graphics screens. Knowing a product is for TFTs helps you check that the driver board matches the display’s connector, resolution, backlight, and signalling method.
Find this product in
Displays & Screens
ST7701 Datasheet
Datasheet · 5.2 MB · Click any page to view full size
Supplier page — adafruit.com
Supplier Description · 738.3 KB · Click any page to view full size
Display Specification Sheet
Datasheet · 1.2 MB · Click any page to view full size
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