In message , Rob Convery
writes
Wondering if anyone knows of any little electronics module that would
control my projector screen for me from my projector trigger output. Due to
my screen being a 4:3 but only using it as a 16:19 it means that i only need
to power the screen for X seconds to bring it down far enough for the
projector.

Is it really worth it?

The rest of the screen won't be illuminated anyway

--
geoff