RS232 code to turn on off projectors

New in the Forum… making research on easy setup for art project video instelation. Hope to find an easy Way to auto start and stop multiple projectors . Any advice ?

Is using an external power switch with a timer an option? You can just cut the power to both Pi and Projector. This of course requires the projector to turn on once power is switched back on. Most professional projectors should have a setting for that.

Switching of power for info-beamer devices is totally fine. They are prepared to handle that and don’t need a clean shutdown.

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