Arduino SOS Generator (with code)
by 44avalanche
This is a very simple SOS (Morse Code) signal generator built using an Arduino UNO. A Buzzer is directly connected to pin 13 to produce the sound. The Arduino UNO internal pin 13 LED visualizes the signal. The code is shown in the video. The Arduino IDE serial monitor could be used to observe the signal HIGH and LOW duration times by removing the "//" from before the Serial.print(); instructions and reloading the code. I selected dot duration time=100 msec to better show the operation.
Project based on Wikipedia articles:
http://en.wikipedia.org/wiki/Morse_code
http://en.wikipedia.org/wiki/SOS