Add comments, update to new HamShield library standard.

examples/FixMe/Identifier/Identifier.ino

@@ -0,0 +1,95 @@
+/* 
+
+Indentifier 
+
+Arduino audio overlay example
+
+*/
+
+
+#include <HamShield.h>
+
+#define DOT 100
+
+#define PWM_PIN 3
+#define RESET_PIN A3
+#define SWITCH_PIN 2
+
+HamShield radio;
+
+const char *bascii = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,?'!/()&:;=+-_\"$@",
+  *bitu[] = { ".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--","-.","---",".--.","--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--..","-----",".----","..---","...--","....-",".....","-....","--...","---..","----.",".-.-.-","--..--","..--..",".----.","-.-.--","-..-.","-.--.","-.--.-",".-...","---...","-.-.-.","-...-",".-.-.","-....-","..--.-",".-..-.","...-..-",".--.-."
+  };
+  
+const char *callsign = {"1ZZ9ZZ/B"} ;   
+  
+char morsebuffer[8];  
+  
+void setup() {
+// NOTE: if not using PWM out, it should be held low to avoid tx noise
+  pinMode(PWM_PIN, OUTPUT);
+  digitalWrite(PWM_PIN, LOW);
+  
+  // prep the switch
+  pinMode(SWITCH_PIN, INPUT_PULLUP);
+  
+  // set up the reset control pin
+  pinMode(RESET_PIN, OUTPUT);
+  digitalWrite(RESET_PIN, HIGH);
+  
+  Serial.begin(9600);
+  Serial.println("starting up..");
+
+  Serial.print("Radio status: ");
+  int result = radio.testConnection();
+  Serial.println(result,DEC);
+  radio.initialize();
+  radio.frequency(446000);
+  radio.setVolume1(0xF);
+  radio.setVolume2(0xF);
+  radio.setModeReceive();
+  radio.setTxSourceMic();
+  radio.setSQLoThresh(80);
+  radio.setSQOn();
+  Serial.println("Done with radio beacon setup. Press and hold a key to transmit.");
+}
+
+int state = 0;
+long timer = 0;
+int morseletter = 0;
+int morsesymbol = 0;
+long keyer = 0;
+char symbol;
+
+void loop() { 
+  if(Serial.available() > 0) {
+    if(state == 0) { 
+      state = 10;
+      radio.setModeTransmit();
+      timer = millis();
+      keyer = millis();
+    }
+    if(state == 10) { 
+      timer = millis();
+    }
+  }
+  if(millis() > (timer + 500)) { radio.setModeReceive(); morseletter = 0; morsesymbol = 0; state = 0; }
+  if(state == 10) { 
+    if(millis() > (keyer + (DOT * 3))) { 
+      keyer = millis();
+      symbol = lookup(callsign[morseletter],morsesymbol);
+      if(symbol == '-') { tone(9,1000,DOT*3); } 
+      if(symbol == '.') { tone(9,1000,DOT); } 
+      if(symbol == 0) { morsesymbol = 0; morseletter++; }
+      if(callsign[morseletter] == 0) { morsesymbol = 0; morseletter = 0; }  
+    }
+  }
+}
+
+char lookup(char letter, int morsesymbol) { 
+ for(int x = 0; x < 54; x++) { 
+  if(letter == bascii[x]) { 
+    return bitu[x][morsesymbol]; 
+  } 
+ }
+}