AVR Atmega multiple 8x8 led matrix using MAX7219

This library implements a 8x8 led matrix for AVR Atmega.

It uses just one MAX7219 serial input/output common-cathode display drivers and 3 ports.
MAX7219 can refresh leds leving more resources to microcontroller.
This library uses MAX7219 without the need of SPI. User can setup scan limit and intensity setup.
Multiple led matrix can be attached.

With simple functions, it gives your the ability to:

• power on / off a single led
• setup a selected row
• setup an 8x8 matrix

Setup parameters are stored in file ledmatrix7219d88.h


Code

• avr_lib_ledmatrix7219d88_01.zip

Notes

• read risk disclaimer
• excuse my bad english