Morse code used to be a vital method of communication in the 19th and 20th centuries. Morse code is a method of sending text messages by keying in a series of electronic pulses, usually represented as a short pulse (called a "dot") and a long pulse (a "dash").

The letters S.O.S. (Save Our Souls) are recognized as an international signal of distress. We are using the Idiotware Shield with the Mesh Radios to send Morse coded messages to a second Idiotware Shield. vimeo: 195525963

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