Encoding messsages, continuously written on serial terminal, in Morse code. Resulting code is played by a buzzer. Please, use local echo on terminal for more impressive experience. To verify coded messages, there are some app for smartphone.
Fork of Morse by
Diff: Morse.h
- Revision:
- 1:84ef66bf435d
- Parent:
- 0:4648894e0d80
- Child:
- 2:39d67345f7b3
diff -r 4648894e0d80 -r 84ef66bf435d Morse.h --- a/Morse.h Tue Sep 16 16:51:31 2014 +0000 +++ b/Morse.h Thu Sep 18 17:26:24 2014 +0000 @@ -1,11 +1,98 @@ +/* + Copyright (c) 2014 Romain Berrada + + Permission is hereby granted, free of charge, to any person obtaining a copy of this software + and associated documentation files (the "Software"), to deal in the Software without restriction, + including without limitation the rights to use, copy, modify, merge, publish, distribute, + sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all copies or + substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + #ifndef INCLUDE_MORSE_H #define INCLUDE_MORSE_H -#ifndef NULL -#define NULL 0 -#endif +/** A Morse Encoding/Decoding Library \n + Transforms char arrays into bool arrays and vice-versa + + Morse code taken from http://en.wikipedia.org/wiki/Morse_code \n + Added some more characters : \n + minus : DOT DOT DASH DASH \n + _ : DASH DASH DASH DOT \n + . : DASH DASH DASH DASH \n + / : DOT DASH DOT DASH \n + @ : DOT DOT DOT DASH DOT \n + ? : DOT DOT DASH DOT DOT \n + + Here is an quick hello-world that show how to use this library \n + @code + #include "mbed.h + #include "Morse.h" + + Serial pc(USBTX, USBRX); + + int main() { + int i; + Morse_data* data; + char message[] = "Hello World"; + + data = morse_create(morse_getBoolSize(message)); + morse_encode(message, data); + for (i=0; i<data->length; i++) pc.printf("%d", data->data[i]); + + morse_decode(data, message); + pc.printf("\nMessage was : %s\n", message); + + while(1); + } + @endcode +*/ -#define DOT false -#define DASH true +/** Morse_data Structure +*/ +typedef struct { + int length; /**< Length of the data field */ + bool* data; /**< data field containing 'length' booleans */ +} Morse_data; + +/** Give the size of the Morse_data that would be encoded from this word. + @param word the word. + @return the size of the encoded version of the word. +*/ +unsigned int morse_getBoolSize(char* word); +/** Give the size of the char array that would be decoded from this Morse_data. + @param data the data. + @return the size of the decoded version of the data. +*/ +unsigned int morse_getWordSize(Morse_data* data); + +/** Encode the char array and put the result into the Morse_data structure. + @param word the word to encode. + @param data the Morse_data structure to store the result. This structure must have a sufficient size. +*/ +void morse_encode(char* word, Morse_data* data); +/** Decode the Morse_data structure and put the result into the char array. + @param data the data to decode. + @param word the char array to store the result. The array must have a sufficient size. (Also think of the '\0') +*/ +void morse_decode(Morse_data* data, char* word); + +/** Allocate a Morse_data structure with the given size. + @param length the size of the structure to create. + @return the data pointer. +*/ +Morse_data* morse_create(unsigned int length); +/** Free a Morse_data structure. + @param data the data to free. +*/ +void morse_destroy(Morse_data* data); #endif \ No newline at end of file