// test Pinguino with Processing
// Jean-Pierre MANDON 2009


int i;
uchar todo,mode,pin,value;
unsigned char buffer[2];
int temp;

int endstring;

void clear();



void setup() {
    for( i=0; i<8; i++ ) pinMode( i, OUTPUT );
    clear();
}

void loop() {

    // select action to perform...
    if ( USB.available() ) {

        if (USB.read()=='+')

            {
            todo =USB.read();
            if ( todo=='C' ) clear();   // clear all
            if ( todo=='W' ) {      // switch on/off the specified pin
                mode = USB.read();
                pin = USB.read();
                value  = USB.read();


                if ( mode=='D' ) digitalWrite( pin, value );


                if ( mode=='A' ) {

                    temp=value+(USB.read()*256);

                    analogWrite( pin, temp );

                    }

                }
            if ( todo=='R' ) {
                    mode = USB.read();
                    pin = USB.read();
                    if ( mode=='D' ) {
                        buffer[0] = digitalRead( pin );
                        USB.send(  buffer, 1 );
                        }
                    if ( mode=='A' ) {
                        temp = analogRead( pin  );
                        buffer[0]=temp;
                        buffer[1]=temp/256;
                        USB.send(  buffer, 2 );
                        }
                    }

        endstring=USB.read();   // read end string byte ( 0 )
        }

    }

}

void clear() {
    for( i=0; i<8; i++ ) {


        digitalWrite( i, LOW );


    }
}