v2.44 natively supports adding live clocks, countdown timers, and temperature/humidity readings (requires compatible sensors attached to the controller).
Because this is legacy software, it runs on almost anything today, but it has specific quirks: lededit 2014 v2.44
Being older software, it is very lightweight. v2.44 natively supports adding live clocks
: The general process involves creating the layout, recording the lighting sequences (including text or video capture), and then exporting the resulting .led file to an SD card for the controller to read. it runs on almost anything today