Crate max7219_display

max7219-display: MAX7219 Display Driver

A platform-agnostic, no_std driver for the MAX7219 LED display controller using embedded-hal traits. Supports both 8x8 LED matrix displays and 7-segment numeric displays.

Crate Features

This driver supports multiple daisy-chained MAX7219 devices and works with both 7-segment and LED matrix configurations.

It includes built-in support for scrolling text, displaying characters, and rendering custom patterns on matrix displays. Support for custom fonts.

Additional features can be enabled by adding the following to your Cargo.toml:

• led-matrix - provides utility functions for working with 8x8 LED matrix displays, including text rendering, scrolling, and pattern display.
• graphics - integrates with the embedded-graphics-core crate to enable drawing text, shapes, and images on LED matrix displays.
• seven-segment - adds helper functions for 7-segment numeric displays, such as printing digits and supported characters.

Usage

Add this to your Cargo.toml:

[dependencies]
max7219-display = {version="0.1", features=["led-matrix", "seven-segment", "graphics"]}
# max7219-display = { git = "https://github.com/implferris/max7219-display" }

Examples

Example projects are available in the separate max7219-examples repository to help you get started.

License

This project is licensed under the MIT License.

Re-exports

pub use driver::Max7219;

pub use error::Error;

pub use registers::DecodeMode;

pub use registers::Register;

pub use seven_segment::SevenSegment;seven-segment

pub use led_matrix::LedMatrix;led-matrix

Modules

driver

Core MAX7219 driver implementation

error

Error types for MAX7219 driver

led_matrixled-matrix

LED matrix display implementation

registers

MAX7219 register definitions and constants

seven_segmentseven-segment

7-segment display implementation

Constants

MAX_DISPLAYS

Maximum number of daisy-chained displays supported

NUM_DIGITS

Number of digits (0 to 7) controlled by one MAX7219