Tag Archive for 'software'

Sharp Projectors Returning ERR On POWR Command

July 18th, 2008 by peasleer

I just wasted an hour tracking down a problem with an application that controls Sharp projectors via a RS-232 (serial) connection. On sending the projectors a “POWR   1″ code to turn the projector on, we were getting “ERR” in response. The problem ended up being that the bulb on the projector was burnt out, so the projector was intelligently unable to turn itself on.

This is one case where a simple problem turned out to be a fairly annoying one.