Idea: libre office impress has as mamy other predentstion tools a speaker view in which a timer is shown. The led module could show the running presentation time (and maybe also the current system time).
LO impress has android remote app, maybe there is already an impress API to communicate the timer.
Idea: libre office impress has as mamy other predentstion tools a speaker view in which a timer is shown. The led module could show the running presentation time (and maybe also the current system time).
LO impress has android remote app, maybe there is already an impress API to communicate the timer.