Introduction

displayio driver for GC9A01A displays.

Dependencies

This driver depends on:

• Adafruit CircuitPython

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle or individual libraries can be installed using circup.

Adafruit 1.28" 240x240 Round TFT GC9A01A

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-gc9a01a

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-gc9a01a

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .venv
source .env/bin/activate
pip3 install adafruit-circuitpython-gc9a01a

Installing to a Connected CircuitPython Device with Circup

Make sure that you have circup installed in your Python environment. Install it with the following command if necessary:

pip3 install circup

With circup installed and your CircuitPython device connected use the following command to install:

circup install adafruit_gc9a01a

Or the following command to update an existing version:

circup update

Usage Example

import board
import displayio
import terminalio
from adafruit_display_text.bitmap_label import Label
from fourwire import FourWire
from vectorio import Circle

from adafruit_gc9a01a import GC9A01A

spi = board.SPI()
tft_cs = board.D5
tft_dc = board.D6
tft_reset = board.D9

displayio.release_displays()

display_bus = FourWire(spi, command=tft_dc, chip_select=tft_cs, reset=tft_reset)
display = GC9A01A(display_bus, width=240, height=240)

# Make the display context
main_group = displayio.Group()
display.root_group = main_group

bg_bitmap = displayio.Bitmap(240, 240, 2)
color_palette = displayio.Palette(2)
color_palette[0] = 0x00FF00  # Bright Green
color_palette[1] = 0xAA0088  # Purple

bg_sprite = displayio.TileGrid(bg_bitmap, pixel_shader=color_palette, x=0, y=0)
main_group.append(bg_sprite)

inner_circle = Circle(pixel_shader=color_palette, x=120, y=120, radius=100, color_index=1)
main_group.append(inner_circle)

# Draw a label
text_group = displayio.Group(scale=2, x=50, y=120)
text = "Hello World!"
text_area = Label(terminalio.FONT, text=text, color=0xFFFF00)
text_group.append(text_area)  # Subgroup for text scaling
main_group.append(text_group)

while True:
    pass

Documentation

API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.