| 1 | /*Copy the code below and up load it to the I/O Board |
| 2 | then put some kind of Antenna into PIN 8...PIN 8!!!! |
| 3 | Then tune to AM 1337kHz. |
| 4 | Optional:LED in pin 13 to see what is broadcasting, |
| 5 | also a protoshield to add multiple antenna's. |
| 6 | Lol that code will do morse code saying "I like ice cream"; |
| 7 | *********THE CODE**************************************************** |
| 8 | */ |
| 9 | //start of code |
| 10 | //WWW.JONNYBLANCH.WEBS.COM |
| 11 | long millisAtStart = 0; |
| 12 | long millisAtEnd = 0; |
| 13 | |
| 14 | const long period_broadcast = 8; //period of shortest broadcast (256 port changes) |
| 15 | |
| 16 | #define LENGTH_DIT 64 |
| 17 | //number of period_broadcasts in one 'dit', |
| 18 | //all other lengths are scaled from this |
| 19 | //Broadcasts on 1337 kHz |
| 20 | |
| 21 | const int length_dit = LENGTH_DIT; //number of periods for dit |
| 22 | const int pause_dit = LENGTH_DIT; //pause after dit |
| 23 | const int length_dah = 3 * LENGTH_DIT; //number of persots for dah |
| 24 | const int pause_dah = LENGTH_DIT; //pause after dah |
| 25 | const int length_pause = 7 * LENGTH_DIT; //pause between words |
| 26 | |
| 27 | void dit(void); |
| 28 | void dah(void); |
| 29 | void pause(void); |
| 30 | void broadcast(int N_cycles); |
| 31 | void dontbroadcast(int N_cycles); |
| 32 | |
| 33 | // ### INC ### Increment Register (reg = reg + 1) |
| 34 | #define ASM_INC(reg) asm volatile ("inc %0" : "=r" (reg) : "0" (reg)) |
| 35 | |
| 36 | void setup() { |
| 37 | |
| 38 | Serial.begin(9600); |
| 39 | DDRB = 0xFF; //Port B all outputs |
| 40 | //Do one dit to determine approximate frequency |
| 41 | millisAtStart = millis(); |
| 42 | dit(); |
| 43 | millisAtEnd = millis(); |
| 44 | Serial.print(millisAtEnd - millisAtStart); |
| 45 | Serial.print(" "); |
| 46 | Serial.print((length_dit + pause_dit) * period_broadcast * 256 / |
| 47 | (millisAtEnd - millisAtStart) / 2); |
| 48 | Serial.print("kHz "); |
| 49 | Serial.println(); |
| 50 | } |
| 51 | |
| 52 | void loop() { |
| 53 | dit(); |
| 54 | dit(); |
| 55 | delay(500); |
| 56 | dit(); |
| 57 | dah(); |
| 58 | dit(); |
| 59 | dit(); |
| 60 | delay(250); |
| 61 | dit(); |
| 62 | dit(); |
| 63 | delay(250); |
| 64 | dah(); |
| 65 | dit(); |
| 66 | dah(); |
| 67 | delay(250); |
| 68 | dit(); |
| 69 | delay(500); |
| 70 | dit(); |
| 71 | dit(); |
| 72 | delay(250); |
| 73 | dah(); |
| 74 | dit(); |
| 75 | dah(); |
| 76 | dit(); |
| 77 | delay(250); |
| 78 | dit(); |
| 79 | delay(500); |
| 80 | dah(); |
| 81 | dit(); |
| 82 | dah(); |
| 83 | dit(); |
| 84 | delay(250); |
| 85 | dit(); |
| 86 | dah(); |
| 87 | dit(); |
| 88 | delay(250); |
| 89 | dit(); |
| 90 | delay(250); |
| 91 | dit(); |
| 92 | dah(); |
| 93 | delay(250); |
| 94 | dah(); |
| 95 | dah(); |
| 96 | delay(2000); |
| 97 | |
| 98 | } |
| 99 | |
| 100 | void dit(void) { |
| 101 | for (int i = 0; i < length_dit; i++) |
| 102 | { |
| 103 | |
| 104 | broadcast(period_broadcast); |
| 105 | |
| 106 | } |
| 107 | |
| 108 | for (int i = 0; i < pause_dit; i++) |
| 109 | { |
| 110 | |
| 111 | dontbroadcast(period_broadcast); |
| 112 | |
| 113 | } |
| 114 | |
| 115 | } |
| 116 | |
| 117 | void dah(void) { |
| 118 | for (int i = 0; i < length_dah; i++) |
| 119 | { |
| 120 | |
| 121 | broadcast(period_broadcast); |
| 122 | |
| 123 | } |
| 124 | |
| 125 | for (int i = 0; i < pause_dah; i++) |
| 126 | { |
| 127 | |
| 128 | dontbroadcast(period_broadcast); |
| 129 | |
| 130 | } |
| 131 | |
| 132 | } |
| 133 | |
| 134 | void pause(void) { |
| 135 | for (int i = 0; i < length_pause; i++) |
| 136 | { |
| 137 | |
| 138 | dontbroadcast(period_broadcast); |
| 139 | |
| 140 | } |
| 141 | |
| 142 | } |
| 143 | |
| 144 | void broadcast(int N_cycles) { |
| 145 | unsigned int portvalue; |
| 146 | for (int i = 0; i < N_cycles; i++) |
| 147 | { |
| 148 | |
| 149 | portvalue = 0; |
| 150 | |
| 151 | do { |
| 152 | PORTB = portvalue; |
| 153 | ASM_INC(portvalue); |
| 154 | } |
| 155 | while (portvalue < 255); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | void dontbroadcast(int N_cycles) { |
| 160 | unsigned int portvalue; |
| 161 | PORTB = 0x00; |
| 162 | for (int i = 0; i < N_cycles; i++) |
| 163 | { |
| 164 | |
| 165 | portvalue = 0; |
| 166 | |
| 167 | do { |
| 168 | ASM_INC(portvalue); |
| 169 | //add some assembly No OPerations to keep timing the same |
| 170 | asm volatile ("NOP"); |
| 171 | } |
| 172 | while (portvalue < 255); |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | //end of code |