Did you see the diagram in the first post? I think that's pretty clear. Use SPI for fast updates, and see the code listing in #5 for a way to create an array that represents the state of the display. Update the array, send it out.
Did you see the diagram in the first post? I think that's pretty clear. Use SPI for fast updates, and see the code listing in #5 for a way to create an array that represents the state of the display. Update the array, send it out.