Since its IR is it line of site? How would you go about changing every tag in the store to say 'Palestine $0.00', for example?

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DoctorOW 2 hours ago | parent [-]

I wonder if since IR is invisible you could theoretically, in an intellectual exercise, blast IR light in a room and mass change them surreptitiously if that was your goal.

	▲	ac29 3 minutes ago \| parent [-]
		From the upstream project: > Can I change the display of all ESLs in a store at once ? No. For two reasons: Unlike radio waves, optical communication must be line-of-sight. Even from wall and ceiling reflections, an unique transmitter has no chance of reaching all of the hundreds or thousands of ESLs in a store. Each ESL has an unique address which must be specified in update commands. There's no known way to broadcast display updates.