Morse code is a method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
Each character (letter or numeral) is represented by a unique sequence of dots and dashes.
The morse code is a variable length code, but the max length of a character is 5 dots or dashes.
The device is built on ATTiny13 micro.
This is a simple to build device, i've used the firse time to transmit a xmas message, then i've used in some party with friends :)