import processing.serial.*;

class EZIO 
{
   Serial serial;
   EZIO (PApplet parent, String portname)
   {
      serial = new Serial(parent,portname,57600);
       serial.clear();
   }

  int readline(int n)
  {
   float t;
   int data;
   
   serial.write('r');
   serial.write(byte(n));
   t=millis();
   while(serial.available()<=0)
     if (millis() > t+100)
       break;
   data = serial.read();
   serial.clear();
   if (data==0)
     return 1;
   else if (data==1)
     return 0;
   else return data;
  }

  int a2d (int n)
  {
   float t;
   int data;
   
   serial.write('A');
   serial.write(byte(n));
   t=millis();
   while(serial.available()<=0)
     if (millis() > t+100)
       break;
   data = serial.read();
   serial.clear();
   return data; 
  }

  void writeline (int n,int v)
  {
     serial.write('w');
     serial.write(byte(n));
     serial.write(byte(v)); 
  }
  
  void pwm (int n,int v)
  {
    // split v into 2 bytes
    int b1 = v & 0xFF00;
    int b2 = v & 0x00FF;
    b1 = b1 >>8;
    println (b1 + " " + b2);
    serial.write('p');
    serial.write(byte(n));
    serial.write(byte(b1));
    serial.write(byte(b2));
  }
}