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*******************C Program****************** /*
 * proces.c
 *
 * Created: 10/19/2013 7:22:03 PM
 *  Author: GANESH SELVARAJ
 */ 

#define F_CPU 16000000UL
#define USART_BAUDRATE 9600
#define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16UL))) - 1)
#include<avr/io.h>
#include<util/delay.h>

void BlueInit()
{
UCSRB |= (1 << RXEN) | (1 << TXEN); // Enable transmission and reception

UCSRC |= (1 << URSEL) | (1<<USBS) | (1 << UCSZ0) | (1 << UCSZ1);
// Use 8-bit character sizes

UBRRL = BAUD_PRESCALE;

UBRRH = (BAUD_PRESCALE >> 8);

}
void BlueWrChar(unsigned char d)
{
while ((UCSRA & (1 << UDRE)) == 0); // wait till UDR is ready

UDR = d; // send data
}
unsigned int BlueRdChar()
{
while ((UCSRA & (1 << RXC)) == 0); // wait until data has been received

return(UDR); // return the byte
}
void BlueWrString(const char *msg)
{
BlueWrChar('r');
BlueWrChar('n');
while(*msg!='')
{
BlueWrChar(*msg);
msg++;
}
}
 
int main()
{
DDRB=(1<<PB0);
unsi/* This the simplewrite code (modified) which can be found in the example codes section
of the software */
import processing.serial.*;
Serial myPort; // Create object from Serial class
int val; // Data received from the serial port
void setup()
{
size(200, 200);
String portName = "COM9";
myPort = new Serial(this, portName, 9600);
}
void draw() {
background(255);
if (mouseOverRect() == true) { // If mouse is over square,
fill(204); // change color and
myPort.write('H'); // send an H to indicate mouse is over square
}
else { // If mouse is not over square,
fill(0); // change color and
myPort.write('L'); // send an L otherwise
}
rect(50, 50, 100, 100); // Draw a square
}
boolean mouseOverRect() { // Test if mouse is over square
return ((mouseX >= 50) && (mouseX <= 150) && (mouseY >= 50) && (mouseY <= 150));
}

gned char value;
_delay_ms(50); // delay of 50 mili seconds
BlueInit(); // initialization of USART
while(1)
{
value=BlueRdChar(); // get data from serial port
if(value=='H')
PORTB=(1<<PB0);
else if(value=='L')
PORTB=(0<<PB0);
_delay_ms(100);

}
return 0;
}

********************Processing Code**************************

 
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