I'm trying to connect an HD video source (via HDMI) to an older projector (which has VGA) but it's not working, and I think it's because the projector isn't HDCP compatible. As far as I know, HDCP is some sort of copy-protection scheme that needs to be authenticated by both ends of an HD signal to allow your video to display.
I'm wondering if it's possible to use an Arduino to solve this problem... I guess it would involve being able to take in a video signal via HDMI at one end, do some fancy stuff in the middle, and then output an unprotected video signal via VGA at the other end. Is this something an Arduino could do?
(I apologise if this is breaking some sort of copy-protection laws; I just want to be able to display my HD video signal on my projector!