PiChart is a lightweight library for creating charts, cards, and image tiles on MicroPython displays, optimized for devices like the Raspberry Pi Pico with Pimoroni displays. Plot data as bars, lines, or points, display text cards, or show JPEG images in a customizable grid layout.
- Bar, line, and point chart types
- Text cards for simple info displays
- JPEG image tiles with borders
- Grid-based container for layout management
- Customizable colors, sizes, and display options
- MicroPython firmware (e.g., Pimoroni’s build with
jpegdec) - A compatible display (e.g., Pico Display Pack)
- Hardware: Raspberry Pi Pico or similar MicroPython device
- Copy
pichart.pyto your MicroPython device using a tool like Thonny or rshell. - Ensure your MicroPython firmware includes
jpegdec(included in Pimoroni’s builds).
from pichart import Chart, Container
from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY
# Set up display
display = PicoGraphics(display=DISPLAY_PICO_DISPLAY)
# Create a chart
chart = Chart(display, title="Temp", values=[20, 25, 22, 28])
chart.x = 10
chart.y = 10
chart.width = 220
chart.height = 120
chart.data_colour = {'red': 255, 'green': 0, 'blue': 0} # Red bars
# Add to container and draw
container = Container(display)
container.add_chart(chart)
container.update()See docs/ for detailed guides:
- User Guide: Full usage instructions
- API Reference: Class and method details
- Examples: More code samples
Be sure to checkout my Pimoroni Presto Weather Station Display project
MIT License - See LICENSE for details.
Contributions welcome! See CONTRIBUTING.md for guidelines.