// BusyHelloWorld.pde - a modified version of HelloWorld.pde
// a demo showing example usage of SpeakJet Busy line monitoring
// written by Galen Raben / www.droidbuilder.com 4-29-2010

// set up a new software serial port
//rxPin: the pin on which to receive serial data
//txPin: the pin on which to transmit serial data
//busyPin: the pin used to monitor SpeakJet Busy line
#include <SoftwareSerial.h>
#define txPin 2
#define rxPin 3
#define busyPin 4
// set up the SoftwareSerial port to connect to the SpeakJet
SoftwareSerial speakJet = SoftwareSerial(rxPin, txPin);

/* HELLO WORLD SpeakJet MSA phonemes (see page 16 of SpeakJet User Manual)
 20, 96, 21, 114, 22, 88, 23, 5, 183, 7, 159, 146, 164, 147, 151, 145, 176
 v       s        p       b       H   f   E    L    O    W    A    L    E
 o       p        i       e       E   a   H    O    W    W    X    E    D
 l       e        t       n           s   L         W         R
         e        c       d           t   L         W         R
         d        h
*/
// char array holding string we want to speak
byte sayThis[] = {20, 96, 21, 114, 22, 88, 23, 5, 183, 7, 159, 146, 164, 147, 151, 145, 176}; //say "hello world"

void setup()
{
  // define pin modes for tx, rx pins:
  //pinMode(rxPin, INPUT); //not needed for this demo
  pinMode(txPin, OUTPUT);
  speakJet.begin(9600);
  delay(1000); // wait a second for the Arduino resets to complete
}

void SJBusy(){
  delay(20); // wait 12ms minimum before checking SpeakJet busy pin
  while(digitalRead(busyPin)){
    delay(250); // wait here while SpeakJet is busy (pin 4 is true)
  }
  delay(250); // a bit more delay is needed for some reason
}

void loop()
{
  // send it to the SpeakJet
  for (int i=0; i<sizeof(sayThis); i++){
    speakJet.print(sayThis[i], BYTE);
  }
  SJBusy();
}