Check out next slides for cipher morse code
F (● ● ― ●)
Two quick taps, one long hold, followed by another quick tap
A (● ― ●)
Quick tap, long hold, then another quick tap
I (● ●)
Two quick taps
E (●)
Single quick tap
N (― ●)
Long hold followed by a quick tap
D (― ● ●)
Long hold, followed by two quick taps
S (● ● ●)
Three quick taps