Arduino stuff

Arduino code

						int mq3_analogPin = A0; // connected to the output pin of MQ3

int readAlcoholButton = 3;
int writeAlcoholButton = 4;

void setup() {

	Serial.begin(9600); // open serial at 9600 bps
	pinMode(readAlcoholButton, INPUT);
	pinMode(writeAlcoholButton, INPUT);
	pinMode(6, OUTPUT);
	pinMode(7, OUTPUT);
}



void loop() {
	int alcoholValue  = analogRead(mq3_analogPin);

	digitalWrite(6, LOW);
	digitalWrite(7, LOW);
	if(digitalRead(readAlcoholButton) == HIGH){
		Serial.println(alcoholValue);

	if(alcoholValue < 300){
		digitalWrite(6, HIGH);
		digitalWrite(7, LOW);
	}
	
	else if(alcoholValue >500){
		digitalWrite(6, LOW);
		digitalWrite(7, HIGH);
	}
	}

	if(digitalRead(writeAlcoholButton) == HIGH){
		Serial.println("ddd");
	}


	delay(100);

}

Download arduino code

Processing code

import processing.serial.*;
import twitter4j.conf.*;
import twitter4j.*;
import twitter4j.auth.*;
import twitter4j.api.*;
import java.util.*;
import processing.serial.*;

Status status;
Twitter twitter;
String lines [];


Serial port; 
String string = "";
int pos1 = 100;
int pos2 = 0;

void setup(){
	port = new Serial(this, Serial.list()[1], 9600);
	port.bufferUntil('\n');
	size(800, 600);
	background(120);
  
  
	//loading twitter account data file; 
	lines = loadStrings("secret.txt");
  
	//loading information into configuration object 
	ConfigurationBuilder cb = new ConfigurationBuilder();
	cb.setOAuthConsumerKey(lines[0]);
	cb.setOAuthConsumerSecret(lines[1]);
	cb.setOAuthAccessToken(lines[2]);
	cb.setOAuthAccessTokenSecret(lines[3]);
  
	TwitterFactory factory = new TwitterFactory(cb.build());
  
	//creating twitter instance
	twitter = factory.getInstance();
}

void draw(){
	background(120);
	text(string, pos1, pos2);
}

void serialEvent(Serial readPort){

	String portContents = readPort.readStringUntil('\n');
  
	int value = int (portContents.trim());
  
	if(portContents != null) {
    
		if(value < 300){
			println("Less than 300");
			tweet(portContents);
		}
    
		else if(value > 300 && value < 400){
			println("Bigger than 300 ess than 400");
		}
    
		else if(value > 500 && value < 600){
			println("500-600");
		}
	}
	println(portContents);
}


void tweet(String val){
	try{
		//creating string for tweet status; hour; minute; second
		String statusString = "";
		String hourString = "";
		String minuteString = "";
		String secondString = "";
		
		//extracting hour, minute and second to variables
		int hour = hour();
		int minute = minute();
		int second = second();
		
		//formatting hourString. Generally, string has to be formatted, otherwise 
		//format is e.g. '5' instead of '05'.
		if(hour >= 0 && hour< 10){
			hourString = "0" + hour;
		}
		else{
			hourString = "" + hour; 
		}
		//formatting minuteString
		if(minute >= 0 && minute < 10){
			minuteString = "0" + minute;
		}
		else{
			minuteString = "" + minute;
		}
    
		//formatting secondString
		if(second >= 0 && second < 10){
			secondString = "0" + second();
		}
		else{
			secondString = "" + second;
		}
    
		//formatting tweet status; it displays actual hour and alcohol value
		statusString = "Reading at: " + hourString + ":" + minuteString + ":" + secondString +"." + 
						"Your actual alcohol value is: " + val;
    
		//updating twitter
		Status status = twitter.updateStatus(statusString);
		//displaying tweet in processing console
		System.out.println("Status updated to[" + status.getText() + "].");
	}
	catch(TwitterException te){
		System.out.println("Error " + te.getMessage());
	}
}

Download processing code