added morse code for krebsuino

morse.pde: listens for serial input and writes morse code to attached speaker (at port 13). written in arduino ide

1 files changed, 164 insertions, 0 deletions

diff --git a/uino/morse/morse.pde b/uino/morse/morse.pde
new file mode 100644
index 00000000..685f5092
--- /dev/null
+++ b/uino/morse/morse.pde
@@ -0,0 +1,164 @@
+#include <SoftwareSerial.h>
+
+/*
+  Implementes the Morse algorithm for a simple speaker
+  
+  @author Felix
+  @date 07.05.2011
+  */
+int inByte = 0;
+int i = 0;
+int j = 0;
+int char_avail =  0;
+
+/* You can touch this: */
+#define DIT_DELAY 50
+
+
+/* But you cannot touch this: */
+#define WORD_DELAY (DIT_DELAY * 7)
+#define DIT_CYCLES (DIT_DELAY/2)
+#define CHAR_DELAY (DIT_DELAY * 3)
+
+#define dsym() delay(DIT_DELAY);
+#define char_delay() delay(CHAR_DELAY);
+#define word_delay() delay(WORD_DELAY);
+
+
+static  char* latin_upper[] = {
+  ". -\0" , /* A */
+  "- . . .\0"
+  "- . . .\0",
+  "- . - .\0",
+  "- . .\0",
+  ".\0",
+  ". . - .\0",
+  "- - .\0",
+  ". . . .\0",
+  ". .\0",
+  ". - - -\0",
+  "- . -\0",
+  ". - . .\0",
+  "- -\0",
+  "- .\0",
+  "- - -\0",
+  ". - - .\0",
+  "- - . -\0",
+  ". - .\0",
+  ". . .\0",
+  "-\0",
+  ". . -\0",
+  ". . . -\0",
+  ". - -\0",
+  "- . . -\0",
+  "- . - -\0",
+  "- - . .\0" /* Z */
+};
+static  char* numbers[] = {
+  "- - - - -\0", /* 0 */
+  ". - - - -\0",
+  ". . - - -\0",
+  ". . . - -\0",
+  ". . . . -\0",
+  ". . . . .\0",
+  "- . . . .\0",
+  "- - . . .\0",
+  "- - - . .\0",
+  "- - - - .\0"  /* 9 */
+};
+
+void setup() {                
+  // initialize the digital pin as an output.
+  // Pin 13 has an LED connected on most Arduino boards:
+  pinMode(13, OUTPUT);     
+  Serial.begin(9600);
+}
+
+
+
+void loop() {
+  char_avail = Serial.available();
+  
+  if(char_avail > 0) {
+    for (j = 0; j < char_avail;j++)
+    {
+      char on_line = Serial.read();
+      to_beep(on_line);
+      char_delay();
+    }
+  }
+}
+
+void to_beep(char data)
+{
+  char* mdata;
+  if (data == ' ')
+  {
+    word_delay();
+    Serial.println("word end");
+    return;
+  }
+  else{
+    if (data == '\n') {
+      word_delay();
+      Serial.println("EOL");
+      return;
+    } else
+    if (data >= 'A' && data <= 'Z' )
+      mdata = latin_upper[data-'A'];
+    else
+    if (data >= 'a' && data <= 'z' )
+      mdata = latin_upper[data-'a'];
+    else
+    if (data >= '0' && data <= '9')
+      mdata = numbers[data-'0'];
+    else
+    {
+      Serial.print(data);
+      Serial.println(": not implemented");
+      return;
+    }
+  }
+  
+  Serial.println(mdata);
+  int sdata = strlen( mdata);
+  for( char i = 0; i < sdata; i ++)
+  {
+
+    char token = mdata[i];
+    if (token == '.')
+    {
+      dit();
+    }
+    if (token == '-')
+    {
+      dah();
+    }
+    if (token == ' ')
+    {
+      dsym();
+    }
+   
+  }
+  
+}
+void dah() {
+  for (int i=0;i<3;i++)
+  {
+    dit();
+  }
+}
+
+void dit(){
+
+  for (int i=0;i<DIT_CYCLES;i++) // Number of DIT Cycles , sleep 2 milliseconds in a cycle
+  {
+      digitalWrite(13, HIGH);   // set the LED on
+      delay(1);            
+
+      digitalWrite(13, LOW);    // set the LED off
+      delay(1);             
+  }
+}
+
+