Great guide but you could also use a lifecycle connected to a repeater. The repeater is set to when receiving on channel and no channel is put. Then, have the repeater wired to the laser to deactivate it and have it wired to a wire repeater. Next, the wire repeater is wired to the laser to activate it.
It works but I forgot to add you have to connect the wire repeater to the repeater so it continues running. Most people think it doesn’t work because they forget to set the “Time To Run” to “Stop On Channel” and they forget to change the “Task Interval”.
That was over 4 months ago so I am afraid they left that conversation, but thank you for caring about the users of this site! We need more rule followers like you here!