I've been trying to get the Max 7456 to work with Arduino, through the basic library and so far I'm making headway, understanding how to display characters on screen and what not.
However, when I connect my input video (A composite RPi video out) into the module, I only get that signal on output, the overlay disappears. When I test without an input, I can see the overlay, overlaid over nothing, of course.
Any ideas as to what could be causing this?
Thank you in advance.