I got a new mini-projector, and wrote a Processing sketch for my Pi Zero-W to display some continuously-changing art on my otherwise-bare ceiling. It's beautiful. But the Pi shuts off the feed to the projector after ten minutes or so, which ruins it.
The projector remains on and the Processing sketch remains running -- all I have to do is touch any key on the keyboard and the projection springs back to life. Is there any way to jog it periodically somehow so I don't have to keep hitting a key, which utterly defeats the purpose? I don't think it's a projector issue, because the projector remains on.