CircuitPython library for RGB displays.
Project description
Introduction
Port of display drivers from https://github.com/adafruit/micropython-adafruit-rgb-display to Adafruit CircuitPython for use on Adafruit’s SAMD21-based and other CircuitPython boards.
This CircuitPython driver currently supports displays that use the following display-driver chips: HX8353, HX8357, ILI9341, S6D02A1, ST7789, SSD1331, SSD1351, and ST7735 (including variants ST7735R and ST7735S).
Dependencies
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
For the Pillow Examples, you will need to be running CPython. This means using a Single Board Computer such as a Raspberry Pi or using a chip such as an FT232H on Linux, Window, or Mac. CircuitPython does not support PIL/pillow (python imaging library)!
For improved performance consider installing NumPy.
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-rgb-displayTo install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-rgb-displayTo install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-rgb-displayUsage Example
2.2”, 2.4”, 2.8”, 3.2” TFT
import time
import busio
import digitalio
from board import SCK, MOSI, MISO, D2, D3
from adafruit_rgb_display import color565
import adafruit_rgb_display.ili9341 as ili9341
# Configuration for CS and DC pins:
CS_PIN = D2
DC_PIN = D3
# Setup SPI bus using hardware SPI:
spi = busio.SPI(clock=SCK, MOSI=MOSI, MISO=MISO)
# Create the ILI9341 display:
display = ili9341.ILI9341(spi, cs=digitalio.DigitalInOut(CS_PIN),
dc=digitalio.DigitalInOut(DC_PIN))
# Main loop:
while True:
# Clear the display
display.fill(0)
# Draw a red pixel in the center.
display.pixel(120, 160, color565(255, 0, 0))
# Pause 2 seconds.
time.sleep(2)
# Clear the screen blue.
display.fill(color565(0, 0, 255))
# Pause 2 seconds.
time.sleep(2)1.14” TFT with Raspbery Pi 4
With 1.14” wiring, here is the working code:
import time
import busio
import digitalio
from board import SCK, MOSI, MISO, CE0, D24, D25
from adafruit_rgb_display import color565
from adafruit_rgb_display.st7789 import ST7789
# Configuration for CS and DC pins:
CS_PIN = CE0
DC_PIN = D25
RESET_PIN = D24
BAUDRATE = 24000000
# Setup SPI bus using hardware SPI:
spi = busio.SPI(clock=SCK, MOSI=MOSI, MISO=MISO)
# Create the ST7789 display:
display = ST7789(
spi,
rotation=90,
width=135,
height=240,
x_offset=53,
y_offset=40,
baudrate=BAUDRATE,
cs=digitalio.DigitalInOut(CS_PIN),
dc=digitalio.DigitalInOut(DC_PIN),
rst=digitalio.DigitalInOut(RESET_PIN))
# Main loop: same as above
while True:
# Clear the display
display.fill(0)
# Draw a red pixel in the center.
display.pixel(120, 160, color565(255, 0, 0))
# Pause 2 seconds.
time.sleep(2)
# Clear the screen blue.
display.fill(color565(0, 0, 255))
# Pause 2 seconds.
time.sleep(2)Contributing
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
Documentation
For information on building library documentation, please check out this guide.
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