// transmitter.pde

#include <VirtualWire.h> // http://www.open.com.au/mikem/arduino/VirtualWire-1.4.zip

int switchPin1 = 9; 	// switch connected to digital pin 2
int switchValue1; 	// a variable to keep track of when switch is pressed
int switchPin2 = 10; 	// switch connected to digital pin 2
int switchValue2; 	// a variable to keep track of when switch is pressed

void setup()
{

    pinMode(switchPin1, INPUT);        // sets the switchPin to be an input
    digitalWrite(switchPin1, HIGH);    // sets the default (unpressed) state of switchPin to HIGH 
    pinMode(switchPin2, INPUT);        // sets the switchPin to be an input
    digitalWrite(switchPin2, HIGH);    // sets the default (unpressed) state of switchPin to HIGH 

    vw_setup(2000);	 // Bits per sec
}

void loop()
{  
    ////// check switch1 //////
    const char *mymessage1 = "B";
       // check to see if the switch1 is pressed
       switchValue1 = digitalRead(switchPin1);
         if(switchValue1 == LOW) {
           mymessage1 = "Y";
          }
          else {
           mymessage1 = "N";
          }

    digitalWrite(13, true);  // turn on LED to show transmitting
    vw_send((uint8_t *)mymessage1, strlen(mymessage1)); // transmit message
    vw_wait_tx();  // Wait until the whole message is gone
    digitalWrite(13, false); //turn off LED to show tranmitting is done
    
    ////// check switch2 //////
    const char *mymessage2 = "C";
        // check to see if the switch2 is pressed
        switchValue2 = digitalRead(switchPin2);
          if(switchValue2 == LOW) {
            mymessage2 = "Z";
          }
          else {
            mymessage2 = "O";
          }

    digitalWrite(13, true);  // turn on LED to show transmitting
    vw_send((uint8_t *)mymessage2, strlen(mymessage2));  // transmit message
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);  // turn off LED to show transmitting is done
    
    // I still need to do some more research as to how often it can check the state
    // of the switch . . . how often can it transmitt? baud rate limits?
    delay(200);
}