Adafruit 1.28" 240x240 Round TFT LCD Display with MicroSD - GC9A01A with EYESPI Connector
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'Round these parts Adafruit enjoy unusually-shaped displays. And this one certainly fits the description - it's a 1.28" diagonal TFT that comes in a round shape and contains a high density 220 ppi, 240x240 pixel RGB display with full-angle viewing. It looks a lot like Adafruit's 1.54" 240x240 squar display, but with the edges beveled off. We've seen displays like this often used in smartwatches and small electronic devices but they've always been MIPI interface. Finally, Adafruit found one that is SPI and has a friendly display driver, so it works with any and all microcontrollers or microcomputers!
This lovely little display breakout is the best way to add a small, round, colorful and very bright display to any project. Since the display uses 4-wire SPI to communicate and has its own pixel-addressable frame buffer, it can be used with every kind of microcontroller. Even a very small one with low memory and few pins available! The 1.28" display has 240x240 16-bit full color pixels and is an IPS display, so the color looks great up to 80 degrees off axis in any direction. The TFT driver (GC9A01A) is very similar to the popular ST7789, and Adafruit's Arduino library supports it well.
The breakout has the TFT display soldered on (it uses a delicate flex-circuit connector) as well as an ultra-low-dropout 3.3V regulator, auto-reset circuitry, and a 3/5V level shifter so you can use it with 3.3V or 5V power and logic. They also had a little extra space, so they placed a microSD card holder so you can easily load full color bitmaps from a FAT16/FAT32 formatted microSD card. The microSD card is not included, but you can pick one up here.
Of course, Adafruit wouldn't just leave you with a datasheet and a "good luck!" - Adafruit have written a full open-source graphics Arduino library that can draw pixels, lines, rectangles, circles, text, and bitmaps as well as example code. The code is written for Arduino but can be easily ported to your favorite microcontroller! Wiring is easy, Adafruit strongly encourage using the hardware SPI pins of your Arduino as software SPI is noticeably slower when dealing with this size display. For Raspberry Pi or other Single Board Computer Python users, Adafruit have a user-space Pillow-compatible library. For CircuitPython there's a contributed displayio driver for native support.
This display breakout also features a 18-pin "EYESPI" standard FPC connector with flip-top connector. You can use a 18-pin 0.5mm pitch FPC cable (not included!) to connect to all the GPIO pins, for when you want to skip the soldering.
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Technical Details
Specifications:
- 1.28" LCD TFT display
- Built-in microSD slot
- 1x16 header for easy breadboarding
- 2 x 0.1" / 2.5mm mounting holes
- LCD screen dimensions: 38.1mm x 35.6mm
- Overall dimensions: 42.4mm x 36.2mm x 5.4mm
- Mounting hole distance: 22.8mm / 0.9"
- Weight (assembled): 8.3g
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