by Grawmpy Troll
Turns on backlight to spell SOS in Morse Code. Most flows say they do SOS, but most only repeat SO. Made sure mine did SOS and pauses between.
Figured out how to get the block count low thanks to help researching "Morse" code flow by Siapran Candoris, http://llamalab.com/automate/community/flows/8798. Down to 12 blocks with this.