Moved whole Arduino sketchbook to GIT (nothing interesting :-)

[mirrors/Programs.git] / arduino / AM_Broadcast_Modulator / AM_Broadcast_Modulator.pde

diff --git a/arduino/AM_Broadcast_Modulator/AM_Broadcast_Modulator.pde b/arduino/AM_Broadcast_Modulator/AM_Broadcast_Modulator.pde
new file mode 100644 (file)
index 0000000..3f56794
--- /dev/null
+++ b/arduino/AM_Broadcast_Modulator/AM_Broadcast_Modulator.pde
@@ -0,0 +1,176 @@
+/*Copy the code below and up load it to the I/O Board
+then put some kind of Antenna into PIN 8...PIN 8!!!!
+Then tune to AM 1337kHz.
+Optional:LED in pin 13 to see what is broadcasting,
+also a protoshield to add multiple antenna's.
+Lol that code will do morse code saying "I like ice cream";
+*********THE CODE****************************************************
+*/
+//start of code 
+//WWW.JONNYBLANCH.WEBS.COM 
+long millisAtStart = 0;
+long millisAtEnd = 0;
+
+const long period_broadcast = 8;       //period of shortest broadcast (256 port changes) 
+
+#define LENGTH_DIT 64
+//number of period_broadcasts in one 'dit', 
+//all other lengths are scaled from this 
+//Broadcasts on 1337 kHz 
+
+const int length_dit = LENGTH_DIT;     //number of periods for dit 
+const int pause_dit = LENGTH_DIT;      //pause after dit 
+const int length_dah = 3 * LENGTH_DIT; //number of persots for dah 
+const int pause_dah = LENGTH_DIT;      //pause after dah 
+const int length_pause = 7 * LENGTH_DIT;       //pause between words 
+
+void dit(void);
+void dah(void);
+void pause(void);
+void broadcast(int N_cycles);
+void dontbroadcast(int N_cycles);
+
+// ### INC ### Increment Register (reg = reg + 1) 
+#define ASM_INC(reg) asm volatile ("inc %0" : "=r" (reg) : "0" (reg))
+
+void setup() {
+
+       Serial.begin(9600);
+       DDRB = 0xFF;            //Port B all outputs 
+       //Do one dit to determine approximate frequency 
+       millisAtStart = millis();
+       dit();
+       millisAtEnd = millis();
+       Serial.print(millisAtEnd - millisAtStart);
+       Serial.print(" ");
+       Serial.print((length_dit + pause_dit) * period_broadcast * 256 /
+                    (millisAtEnd - millisAtStart) / 2);
+       Serial.print("kHz ");
+       Serial.println();
+}
+
+void loop() {
+       dit();
+       dit();
+       delay(500);
+       dit();
+       dah();
+       dit();
+       dit();
+       delay(250);
+       dit();
+       dit();
+       delay(250);
+       dah();
+       dit();
+       dah();
+       delay(250);
+       dit();
+       delay(500);
+       dit();
+       dit();
+       delay(250);
+       dah();
+       dit();
+       dah();
+       dit();
+       delay(250);
+       dit();
+       delay(500);
+       dah();
+       dit();
+       dah();
+       dit();
+       delay(250);
+       dit();
+       dah();
+       dit();
+       delay(250);
+       dit();
+       delay(250);
+       dit();
+       dah();
+       delay(250);
+       dah();
+       dah();
+       delay(2000);
+
+}
+
+void dit(void) {
+       for (int i = 0; i < length_dit; i++)
+       {
+
+               broadcast(period_broadcast);
+
+       }
+
+       for (int i = 0; i < pause_dit; i++)
+       {
+
+               dontbroadcast(period_broadcast);
+
+       }
+
+}
+
+void dah(void) {
+       for (int i = 0; i < length_dah; i++)
+       {
+
+               broadcast(period_broadcast);
+
+       }
+
+       for (int i = 0; i < pause_dah; i++)
+       {
+
+               dontbroadcast(period_broadcast);
+
+       }
+
+}
+
+void pause(void) {
+       for (int i = 0; i < length_pause; i++)
+       {
+
+               dontbroadcast(period_broadcast);
+
+       }
+
+}
+
+void broadcast(int N_cycles) {
+       unsigned int portvalue;
+       for (int i = 0; i < N_cycles; i++)
+       {
+
+               portvalue = 0;
+
+               do {
+                       PORTB = portvalue;
+                       ASM_INC(portvalue);
+               }
+               while (portvalue < 255);
+       }
+}
+
+void dontbroadcast(int N_cycles) {
+       unsigned int portvalue;
+       PORTB = 0x00;
+       for (int i = 0; i < N_cycles; i++)
+       {
+
+               portvalue = 0;
+
+               do {
+                       ASM_INC(portvalue);
+                       //add some assembly No OPerations to keep timing the same 
+                       asm volatile ("NOP");
+               }
+               while (portvalue < 255);
+       }
+}
+
+//end of code