I have been very long looking for the answer to my question on the web, but I didn’t found anything helpful so I decided to ask you.
Basically I want to Programm a app like how this video shows. Another big deal for me is – how can I change the text size ?
For each character I should make a array of boolean to determine if the led pin should be on or off. I think this is the smartest way for displaying text in fix text size.
Do I have to make an array for every character in every text size I want to get this function working ?
Essentially you are making a Font Map for each font you wish to display on your large LED display. Just like fonts on a regular display, Im afraid the answer is YES, you will have to make essentially a map file for every font you wish to support.
It may not have to be true booleans however, you may be able to get away with a much more compact version of the booleans by storing multiple boolean bits in a single byte, short, or int, etc…