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Showing posts from May, 2016

world's first smart knife.........!

The kitchen knife is one for the future that gives basic information on freshness and bacteria infection of food materials and food, and nutrients at a glance. The knife has sensor and system on its tip itself to sense ingredients of food materials, and the information is known to a user through Smart screen.
the smart knife include not only providing information but also negative ions. it can keep freshness for a long time and block the virus. the negative ions is effective to organic groceries. especially It can block decomposition by ethylene gas and it help to keep freshness for a long time because negative ions have water molecular and it cover groceries surface. and it also help to prevent oxidation and keeping freshness to meat and fish

you can choose a option of two ways voice recognition or touch screen, and you can conveniently get some information through voice recognition in cooking

when you see the screen with holding the knife. it is very inconvenient to hold. so I designed…

How to take raw data from an android mobile phone's GPS..?

Hello friends
                        Today i am gonna to discuss about taking raw data or coordinate from an android mobile GPS device.

Let's Start................

Just enter into programming mode in android studio.
If you don't know that how to do that please read this post.

Now just make a new class as show in figure and name it BootService. Step:3 Now extends Service and implements LocationListener as shown in figure below.

Step:4 Now just copy and paste following code into BootService class.

LocationManager lm;

public int onStartCommand(Intent intent, int flags, int startId)

lm = (LocationManager) getSystemService(LOCATION_SERVICE);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 1, this);


public void onLocationChanged(Location location) {


Toast.makeText(this, "GPS Values Found: " + String.valueOf(location.getLongitude()) + " : " + String.valueOf(location.getLatitude()), Toast.L…

How to show dialog box in android programmatically.............!

Hello friends
Today i am going to tell"how to  show a dialog box in notification bar programmatically".

Let's Start...........

Step:1 First you have to open android studio in development mode of app.
If you don't know how to do that then read this post.


Just drag and drop 2 buttons into virtual mobile and rename buttons as Dialog On and Dialog Off.


Just copy and paste following code before OnCreate method....
static NotificationManager mNotifyManager;
static NotificationCompat.Builder mBuilder;

Now just copy & paste given code below into OnCreate method....
Button on=(Button) findViewById(;
Button off=(Button) findViewById(;

on.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {

mNotifyManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mBuilder = new NotificationCompat.Builder(MainActivity.this);

How does a bicycle pump works....?

some inventions are glamorous—microchips and fiber-optic cables spring to mind. Others are quieter and more humble, but no less important. Pumps and compressors certainly fall into that category. Try to picture life without them and you won't get very far. Take away pumps and you'll have nothing to push hot water through your home central-heating pipes, and no way to remove the heat from your refrigerator. Might as well start walking too, because you won't be able to blow up the tires on your bicycle or put gasoline in your car. From jackhammers to air conditioners, all kinds of machines use pumps and compressors to move liquids and gases from place to place. Let's take a closer look at how they work!

Bicyclists use bicycle pumps on a very regular basis, but most probably never stop to think how they actually work. The purpose of the bike pump is to force air out of the valv…

How to take raw data from gyroscope in android.......................!!!!

Hello friends

The gyroscope, or gyro for short, adds an additional dimension to the information supplied by the accelerometer by tracking rotation or twist. An accelerometer measures linear acceleration of movement, while a gyro on the other hand measures the angular rotational velocity.
                                                                                           Every smart mobile phone has various sensor in built.Today we are going to learn "How to take data from mobile gyroscope".
Let's start...............
Step:1 Just open android studio and click on make new project.Now enter into programming/Development mode. If you don't know how to do that then go to this tutorial.
Step:2 Now just drag and drop 3 tax view into virtual mobile as shown in figure below.

Step:3 Now implements SensorEventListener in MainActivity.

Step:4 Now just copy and paste following code above OnCreate method... TextView et;
TextView et1;
TextView et2;
SensorManager mSensorManager;

How to control Bluetooth Programmatically ...........!

It is very important many time to control bluetooth programmatically, so i have come with this post"How to control Bluetooth Programmatically ...........!"

let's start.....


Enter in app development mode in Android Studio.
if you don't know how to do that then read this post.


Now just drag & drop button into virtual mobile screen as shown in figure below.....

now just double click on dragged buttons and rename them as "On" and "Off".

Now copy & paste following permission into manifest file.

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
just copy and paste following code outside the OnCreate method:

ArrayAdapter<BluetoothDevice> mArrayAdapter;
BluetoothAdapter mbt;
ArrayList<String> arr=new ArrayList<String>();
ArrayList<BluetoothDevice> ar=new ArrayList<BluetoothDevice>…

How to import an image in android app...?

Hello friends in this post i am going to show ,how to display an image in android app.

let's start ..............

For the initial setup see my blog How to make first android app..?

Step-1: Just drag and drop the image view into virtual mobile as shown in figure.

Step-2:Now copy the image which you want to import app and paste in drawable folder in upper-left side.

Step-3:Now double click on image view which you draged and droped into virtual mobile. Now select src and select that image and click ok.

Step-4: Now you can see image in your virtual mobile.Just plug mobile into PC and click on run button in android studio.

For any query comment below.

How to make first android app....!

Welcome to Android application development! This class teaches you how to build your first Android app. You’ll learn how to create an Android project. You'll also learn some fundamentals of Android app design, including how to build a simple user interface and handle user input.
Set Up Your Environment you will need following things for making android app.
A computer or laptop having android studio installed on it.A little knowledge of Java programming.Basic knowledge of Android studio.latest version of JDK (java development kit) and JRE installed on pc. Create a Project with Android Studio

In Android Studio, create a new project:If you don't have a project opened, in the Welcome screen, click New Project.If you have a project opened, from the File menu, select New Project. The Create New Project screen appears.Fill out the fields on the screen, and click Next. It is easier to follow these lessons if you use the same values as shown. Application Name is the app name that appears…

How a nuclear reactor makes electricity....?

A nuclear reactor produces and controls the release of energy from splitting the atoms of uranium.  Uranium-fuelled nuclear power is a clean and efficient way of boiling water to make steam which drives turbine generators. Except for the reactor itself, a nuclear power station works like most coal or gas-fired power stations.

What is atomic energy?