MorseCode.cpp

00001 //Morse Code Source File
00002 
00003 #include "mbed.h"
00004 #include "TextLCD.h"
00005 
00006 TextLCD lcd(p15, p16, p17, p18, p19, p20); // LED screen to display text as it is typed
00007 
00008 int Value = 0;
00009 int First = 1;
00010 int ThreeZeros = 0;
00011 int SevenZeros = 0;
00012 int TenZeros = 0;
00013 
00014 void printChar(int val) {
00015     switch(val) {
00016     case 0: // Printing 0 does nothing
00017         break;
00018     case 184:
00019         lcd.putc('a');
00020         break;
00021     case 3752:
00022         lcd.putc('b');
00023         break;
00024     case 15080:
00025         lcd.putc('c');
00026         break;
00027     case 936:
00028         lcd.putc('d');
00029         break;
00030     case 8:
00031         lcd.putc('e');
00032         break;
00033     case 2792:
00034         lcd.putc('f');
00035         break;
00036     case 3816:
00037         lcd.putc('g');
00038         break;
00039     case 680:
00040         lcd.putc('h');
00041         break;
00042     case 40:
00043         lcd.putc('i');
00044         break;
00045     case 48056:
00046         lcd.putc('j');
00047         break;
00048     case 3768:
00049         lcd.putc('k');
00050         break;
00051     case 2984:
00052         lcd.putc('l');
00053         break;
00054     case 952:
00055         lcd.putc('m');
00056         break;
00057     case 232:
00058         lcd.putc('n');
00059         break;
00060     case 15288:
00061         lcd.putc('o');
00062         break;
00063     case 12008:
00064         lcd.putc('p');
00065         break;
00066     case 61112:
00067         lcd.putc('q');
00068         break;
00069     case 744:
00070         lcd.putc('r');
00071         break;
00072     case 168:
00073         lcd.putc('s');
00074         break;
00075     case 56:
00076         lcd.putc('t');
00077         break;
00078     case 696:
00079         lcd.putc('u');
00080         break;
00081     case 2744:
00082         lcd.putc('v');
00083         break;
00084     case 3000:
00085         lcd.putc('w');
00086         break;
00087     case 15032:
00088         lcd.putc('x');
00089         break;
00090     case 60344:
00091         lcd.putc('y');
00092         break;
00093     case 15272:
00094         lcd.putc('z');
00095         break;
00096     }
00097 }
00098 
00099 void MorseCode(int tick) {
00100     if(tick) {
00101         ThreeZeros = 0;
00102         SevenZeros = 0;
00103         TenZeros = 0;
00104         
00105         //Update Value with a 1
00106         Value = Value << 1;
00107         Value += 1;
00108     }
00109     else {
00110         ThreeZeros += 1;
00111         SevenZeros += 1;
00112         TenZeros += 1;
00113         
00114         //Update Value with a Zero
00115         Value = Value << 1;
00116     }
00117     
00118     if(First) {
00119         lcd.cls();
00120         First = 0;
00121     }
00122     
00123     // Print Char if three zeros in a row
00124     if(ThreeZeros == 3) {
00125         printChar(Value);
00126         ThreeZeros = 0;
00127         Value = 0;
00128     }
00129     if(SevenZeros == 7) { // Space
00130         lcd.putc(' ');
00131         SevenZeros = 0;
00132     }
00133     if(TenZeros == 10) { // Clear
00134         lcd.cls();
00135         SevenZeros = 0;
00136         TenZeros = 0;
00137     }
00138 }