I have an 8x8 matrix wiered according to the print at Gammon Form: Gammon Forum : Electronics : Microprocessors : Interfacing LED displays with the MAX7219 driver
My problem is the code. Where do I find avr\pgmspace.h and font.h
Thank you
For a person with 50 posts, you should know how to post a clickable link.
You need to create font.h; as noted on that webpage To display text (like letters, numbers, symbols) I have borrowed the CP437 font from another project. Put this into a "font.h" file
You shouldn't need to do anything about avr\pgmspace.h
How do I create Fonth file. I found SPI in the library file. But I did not see avr/pgmspace.h