MAX7219 LED display driver shield
Overview
This is a generic shield for LED matrix based on MAX7219. These displays have an SPI interface and usually only five pins: VCC, GND, DIN, CS, and CLK.
Current supported displays
Display |
Controller |
Shield Designation |
|---|---|---|
No Name 8x8 pixel |
MAX7219 |
max7219_8x8 |
Requirements
This shield can only be used with a board which provides a configuration for Arduino connectors and defines a node alias for the SPI interface (see Shields for more details).
Programming
Set --shield max7219_8x8 when you invoke west build. For example:
# From the root of the zephyr repository
west build -b nrf52840dk/nrf52840 --shield max7219_8x8 samples/drivers/display/