/*
 AtoD.ino
 
 Serial Call and Response in ASCII
 Language: Wiring/Arduino
 
this sketch outputs adF( A0,A1,A2,A3,D2,D4,pw ); every 100ms
 This could be captureded is a file called adF.js and included in a .svg
 
  The circuit:
 * potentiometers attached to analog inputs A0 , A1 , A2, A3
 * pushbutton attached to digital I/O 2
 
 
 http://www.arduino.cc/en/Tutorial/SerialCallResponseASCII
 
 */

#define STR1 "ad("
#define STR2 ")"



int sensorA0 = 0;    // first analog sensor
int sensorA1 = 0;    // second analog sensor
int sensorA2 = 0;    // 
int sensorA3 = 0;    // 
int sensorD2 = 0;    // 
int sensorD4 = 0;    // 

int inByte = 0;         // incoming serial byte
int band = 100;   // second analog sensor


int lastSample1 	= 0;   
int update 	   	= 0;   
int now = 0;
int pw  = 250;
String str1;
String str2;




void setup()
{
	// start serial port at 9600 bps and wait for port to open:
	Serial.begin(9600);
	//	while (!Serial) {
	//		; // wait for serial port to connect. Needed for Leonardo only
	//	}
	
	
	pinMode(2, INPUT);   // digital sensor is on digital pin 2
	pinMode(4, INPUT);   // digital sensor is on digital pin 2
	//establishContact();  // send a byte to establish contact until receiver responds 	
	pinMode(3, OUTPUT);   // digital sensor is on digital pin 2	
	
	
	
	
	now = millis();
	str1 = "ad()";
	
	
}

void loop()
{
	// if we get a valid byte, read analog ins:
	if (Serial.available() > 0) {
		Serial.print("hello:");
		
	}
	if ((millis() - now) > 0) {
		
		now = now + 100;
		
		// get incoming byte:
		inByte = Serial.read();
		// read first analog input:
		sensorA0 = analogRead(A0);
		sensorA1 = analogRead(A1);
		sensorA2 = analogRead(A2);
		sensorA3 = analogRead(A3);	
		sensorD2 = digitalRead(2);	
		sensorD4 = digitalRead(4);	
		
		// read  switch, map it to 0 or 255L
		// send sensor values:
		analogWrite( 3, pw );
		Serial.print("adF");
		// emulator does no like braces and semi ; in ""
		// simulator does not like ad(  in strings
		Serial.write( 40 );
		Serial.print(sensorA0);
		Serial.print(",");
		Serial.print(sensorA1);
		Serial.print(",");
		Serial.print(sensorA2);               
		Serial.print(",");
		Serial.print(sensorA3);               
		Serial.print(",");
		Serial.print(sensorD2);               
		Serial.print(",");
		Serial.print(sensorD4);               
		Serial.print(",");
		Serial.print(pw);  
		// simulator does not like ); in strings             
		Serial.write( 41 );
		Serial.write( 59 );
		Serial.println( "" );	
		pw++;
		if ( pw > 255 ){
			pw=0;
		}	
	}
}

void establishContact() {
	while (Serial.available() <= 0) {
		Serial.println("0,0,0,0");   // send an initial string
		delay(300);
	}
}