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Automating projector power on/off?

Posted: Wed Aug 15, 2018 2:40 pm
by BrooksT
What are people doing to control projectors' power states? I'm building a setup that uses a mixture of DMX lighting and projectors, and most of the time I only want the lighting going. For some scenes, I want to power up one or two projectors, and when the scenes are done, want to power them back down (we're talking hours for each scene, not rapid on/off craziness).

The projectors can take commands over TCP/IP, or I suppose I could wire an IR blaster.

Anyone doing something like this?

Re: Automating projector power on/off?

Posted: Thu Aug 16, 2018 11:00 pm
by fastfourier
You'll probably end up doing some scripting! If you can get the projectors on a wi-fi or wired network, you can do some pretty simple control by firing text commands at the projectors, for example

Code: Select all

echo "PWR OFF" | nc 192.168.xxx.xxx 3629
in the case of an Epson. I think. If you save that in a file (eg. "pwroff.sh") and make it executable, you can just call it from whatever software you're using, or use Automator and the OS X calendar to make a schedule.

If you can't execute files from your software, you could use MidiPipe, execute an AppleScript on a MIDI message, then have that Applescript call the shell script.

Anything further than that I'd probably go with a Processing or node.js.

If you can't get network access, there are node.js libraries for the broadlink Mini IR blaster, or you can roll your own with an Arduino.

Re: Automating projector power on/off?

Posted: Fri Aug 17, 2018 8:55 am
by sigmasix
You can always give a try to our app: https://www.sigmasix.ch/projectormanager/

The tricky part with PJLink is the authorisation. If you have a password protected projector, it's much more difficult to script…

ProjectorManager also have applescript control so you can program it the same way fastfourier explained