I'm not the one to design this circuit, okay? I can't even light an LED with a coin battery on the first try. I'm throwing my idea into the contest so someone else can create it and I can buy one. I mean, think of it... so many Feather based projects do their important output on small TFT displays. What if the same graphical output could easily be plugged into a big screen analog monitor, or projector? That would be more than useful in the STEM education classroom, or interactive public displays, or for the vision impaired, or any big audience presentation.
You know, it wouldn't need to be high resolution at all. Plain 24-bit VGA would be plenty, compared to the typical TFTs we already use. My part in the design consists of one concept image, the FeatherWing with a VGA tail hanging off its Magic Black Box.
Of course, if this is already made and on the market, I'll buy two in embarrassment, one for me and one for whoever shows me where to get one.