โšก Electronics Lab ยท Ages 9+

Morse Code Simulator

Type a message, watch the LED blink it in Morse code, hear the beeps, and learn how dots and dashes work! By Nitvi

LED transmitter ๐Ÿ’ก

Ready โ€” type a message and press Play!
Your Morse code will appear here...

Type your message

12 WPM

Morse code alphabet ๐Ÿ“–

Decode challenge ๐Ÿงฉ

Can you decode this Morse code message?

... --- ...

How Morse code works ๐Ÿค”

Morse code turns every letter into a pattern of dots (short signals) and dashes (long signals). It was invented by Samuel Morse and Alfred Vail in the 1830s โ€” almost 200 years ago!

The clever part: the most common letters get the shortest codes. E is just one dot . and T is just one dash -. But Q is much longer: --.-

Timing rules

SignalHow long
. dot (dit)1 unit
- dash (dah)3 units
gap inside a letter1 unit
gap between letters3 units
gap between words7 units

SOS does not stand for "Save Our Souls" โ€” that was made up later! SOS was chosen because ... --- ... is the easiest pattern to recognize, even through noise and static.

Morse code is like the great-great-grandparent of computer binary โ€” just two signals (short and long) can spell any word in the world! ๐ŸŒ