Project 2_Coding

Coding Program
- Arduino (Control Arduino)
- Processing (Application)

Experiment
- LED Blinking using Smartphone
- Sub-Motor running

Processing

import android.content.Intent;
import android.os.Bundle;
import ketai.net.bluetooth.*; 
import ketai.ui.*;
import ketai.net.*; 
import controlP5.*;

KetaiBluetooth bt;
boolean isConfiguring = true;
KetaiList klist;
ArrayList devicesDiscovered = new ArrayList(); 

ControlP5 cp5;
int margin = 150;
boolean ledState = false; 

import android.content.Intent;
import android.os.Bundle; 
import ketai.net.bluetooth.*;
import ketai.ui.*;

import ketai.net.*; 
import controlP5.*; 

KetaiBluetooth bt;
boolean isConfiguring = true;
KetaiList klist;
ArrayList devicesDiscovered = new ArrayList(); 

ControlP5 cp5;
int margin = 150;
boolean ledState = false;

ARDUINO

#include <SoftwareSerial.h> 

SoftwareSerial BTSrial(2, 3); // RX, TX

int led = 13;

char chByte = 0; 

int servoPin = 9;

Servo servo;

int angle = 0;

String strInput = ""; 

String strON = "ON"; 

String strOFF = "OFF";

void setup() {

    pinMode(led, OUTPUT); 

    BTSrial.begin(9600);

    servo.attach(servoPin);}

void loop() {

  while (BTSrial.available() > 0) {  

    chByte = BTSrial.read();

    if(chByte =='\r'){

        if(strInput.equals(strON)) {

          digitalWrite(led, HIGH);

        }

        if(strInput.equals(strOFF)){

          digitalWrite(led, LOW);

        }

        strInput="";

    }

    else{

      strInput += chByte;}{

      for (angle = 0; angle < 180; angle++) {

      servo.write(angle);

      delay(15);}

      for (angle = 180; angle > 0; angle--) {

      servo.write(angle);

      delay(15);

   } 

  }

}

void onCreate(Bundle savedInstanceState) 
{ super.onCreate(savedInstanceState);
bt = new KetaiBluetooth(this); 

}

void onActivityResult(int requestCode, int resultCode, Intent data) 

{ bt.onActivityResult(requestCode, resultCode, data);

}

void setup() {
size(displayWidth, displayHeight); orientation(PORTRAIT);

bt.start();
isConfiguring = true;
PFont font = createFont("Arial", 40); ControlFont cf = new ControlFont(font);
int buttonSize = min(width, height) - 2 * margin;
cp5 = new ControlP5(this);
Button btnLED = new Button(cp5, "buttonLED"); 
btnLED.setPosition(margin, (height - buttonSize) / 2);
btnLED.setSize(buttonSize, buttonSize); 
btnLED.setCaptionLabel("Turn ON the LED");
btnLED.getCaptionLabel().setControlFont(cf);
btnLED.getCaptionLabel().toUpperCase(false);
btnLED.getCaptionLabel().alignX(CENTER);
}

void draw() {
if (isConfiguring) { 
klist = new KetaiList(this, bt.getPairedDeviceNames());
isConfiguring = false; 

}
public void controlEvent(ControlEvent theEvent) 
{
String controllerName = theEvent.controller().name();

if(controllerName == "buttonLED")
{Button btn = (Button)theEvent.controller(); 
if(ledState){ledState = false;
btn.setCaptionLabel("Turn ON the LED");
byte[] data = {'O', 'F', 'F', '\r'}; 
bt.broadcast(data);}
else{
ledState = true; 
btn.setCaptionLabel("Turn OFF the LED");
byte[] data = {'O', 'N', '\r'}; 
bt.broadcast(data);
void onKetaiListSelection(KetaiList klist) 
{String selection = klist.getSelection(); 
bt.connectToDeviceByName(selection); 
klist = null;
}