S O S
••• – – – •••
DOT DOT DOT DASH DASH DASH DOT DOT DOT
one day might save your life
I hope you never have to use it
On a morse key make your dashes three times longer than your dots
If banging a long pause between your dashes, a short one between your dots
With a flashlight, or a torch, and if fact the morse key too, make your dashes 3 seconds long and your dot 1 second long. If banging the pauses between must be as for the lengths. I say seconds but you can make the timing as fast you can count. If you want/need to talk then you will find the full morse code here.