Help in Morse code

Letter by letter

Read aloud: dot dot dot dot, dot, dot dash dot dot, dot dash dash dot.

In an emergency, send SOS instead. It is shorter and known everywhere.

Tap it back

A short tap is a dot, a longer hold is a dash. Pause between letters.

How to send it

• By sound. A short beep for a dot, a beep three times as long for a dash.
• With a flashlight. Short flash, long flash. Keep the light off for the length of three dots between letters.
• By tapping. Taps cannot be long or short, so leave a short pause after a dot and a longer one after a dash, or tap once for a dot and twice quickly for a dash.
• On a bracelet. A round bead for each dot, a long bead for each dash, and a spacer between letters. Help needs 10 round and 3 long beads.

How long it takes

Help is 37 timing units long. That is about 8.9 seconds at 5 words per minute, a beginner's pace, and 3 seconds at 15.

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