TanSanC

아두이노 기본 세팅

1. 아두이노 IDE 다운로드

http://www.arduino.cc/en/main/software

로 접속

스크롤을 내리면

Windows Installer 클릭하여 다운로드 후 설치

2. SparkFun 드라이버 설치

http://www.ftdichip.com/Drivers/VCP.htm

3. Sparkfun SIKcode

sparkfun.com/sikcode

에서 실습용 코드를 받을 수 있다.

Android 화면 크기 읽기, dpi, inch, cm

1. DPI 얻기

DisplayMetrics dm = new DisplayMetrics();

getWindowManager().getDefaultDisplay().getMetrics(dm);

int dpiClassification = dm.densityDpi;

float xDpi = dm.xdpi;

float yDpi = dm.ydpi;

도트 퍼 인치(Dots per inch, DPI)는 인쇄와 디스플레이 해상도의 측정 단위이며, 특히 1 제곱인치 (2.54 제곱센티미터) 공간 안에 만들어진 점이나 화소의 수를 말한다.

ex) DPI 가 30 이라는 말은 30 dots(pixel) 이 1 inch 라는 말이다.

1inch 를 화면에 그리고 싶으면

canvas.drawLine( x , y , x + xdpi , y );

1cm 를 화면에 그리고 싶으면

canvas.drawLine( x , y , x + xdpi / 2.54  , y );

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

LocationManager locationManager;

GoogleMap googleMap = ((SupportMapFragment) getSupportFragmentManager()

.findFragmentById(R.id.map)).getMap();

locationManager = (LocationManager) this

.getSystemService(Context.LOCATION_SERVICE);

Criteria criteria = new Criteria();

criteria.setAccuracy(Criteria.ACCURACY_COARSE);

criteria.setAltitudeRequired(false);

criteria.setBearingRequired(false);

criteria.setSpeedRequired(false);

String provider = locationManager.getBestProvider(criteria, true);// "gps";

Location location = locationManager.getLastKnownLocation(provider);

double[] result = new double[] {

location.getLatitude(), location.getLongitude()

};

LatLng myPosition = new LatLng(result[0], result[1]);

googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(myPosition, 15));

Marker myMarker = googleMap

.addMarker(new MarkerOptions()

.position(new LatLng(result[0], result[1]))

.title("MyPosition")

.icon(BitmapDescriptorFactory

.fromResource(R.drawable.ic_launcher)));

Android 2014-03-01 GoogleMap V2 띄우기

1. 프로젝트 생성

Comple With 를 GoogleAPIs 버전으로

2. google-play-services_lib 를 Import

이클립스 Project Explorer 에서 우클릭하여 Import

SDK폴더\extras\google\google_play_services\libproject\google-play-services_lib

Import 한 google-play-services-lib 를 Add Library

4. Manifest 수정

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.androidmaptest"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="18" />

    <permission

        android:name="com.example.androidmaptest.permission.MAPS_RECEIVE"

        android:protectionLevel="signature" />

    <uses-permission android:name="com.example.androidmaptest.permission.MAPS_RECEIVE" />

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-feature

        android:glEsVersion="0x00020000"

        android:required="true" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <uses-library android:name="com.google.android.maps" />

        <activity

            android:name="com.example.androidmaptest.MainActivity"

            android:label="@string/app_name"

            android:theme="@android:style/Theme.NoTitleBar" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <meta-data

            android:name="com.google.android.gms.version"

            android:value="@integer/google_play_services_version" />

        <meta-data

            android:name="com.google.android.maps.v2.API_KEY"

            android:value="API키값" />

    </application>

</manifest>

6. 사용할 API키 값 발급 받기

실행 -> cmd 

cmd 창을 띄운후

cd .android 

입력 후

keytool -list -v -keystore debug.keystore -alias androiddebugkey -storepass android -keypass android 

입력

https://console.developers.google.com/ 로 접속

로그인 후 프로젝트 생성

생성한 프로젝트를 클릭

APIs & auth 메뉴

Google Maps Android API v2 를 On 으로 변경

Credentials 메뉴 

Android Key 생성

발급 된 키를 사용

그리고

public class MainActivity extends FragmentActivity {

package com.example.androidtest0222;

import android.R.bool;

import android.app.Activity;

import android.content.Context;

import android.graphics.Canvas;

import android.graphics.Color;

import android.os.Bundle;

import android.os.Handler;

import android.util.AttributeSet;

import android.view.Menu;

import android.view.View;

import android.widget.RelativeLayout;

public class MainActivity extends Activity {

      RelativeLayout backLayout;

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

      }

      @Override

      public boolean onCreateOptionsMenu(Menu menu) {

           // Inflate the menu; this adds items to the action bar if it is present.

            getMenuInflater().inflate(R.menu.main, menu);

            return true;

      }

}

class MyView extends View {

      public MyView(Context context) {

            super(context);

      }

      public MyView(Context context, AttributeSet attri) {

            super(context, attri);

            mHandler.sendEmptyMessageDelayed(0, 500);

      }

      boolean flag = false;

      @Override

      protected void onDraw(Canvas canvas) {

            // TODO Auto-generated method stub

            if(flag)

            {

                  canvas.drawColor(Color.YELLOW);

                  flag = !flag;

            }

            else

            {

                  canvas.drawColor(Color.GREEN);

                  flag = !flag;

            }

            super.onDraw(canvas);

      }

      Handler mHandler = new Handler()

      {

            public void handleMessage(android.os.Message msg) {

                  invalidate();

                  mHandler.sendEmptyMessageDelayed(0, 500);

            };

      };

}

JAVA 채팅 프로그램 export zip

JavaChatting20140124.zip

JavaChatting20140124 #2.zip

JavaChatting20140124 #3.zip

JavaChatting20140124 #4 대화명 변경가능.zip

INSERT INTO books (title, publisher, year, price)

  VALUES(‘Operating System Concepts’, ‘Wiley’, ‘2003’, 30700);

INSERT INTO books (title, publisher, year, price)

  VALUES(‘Head First PHP and MYSQL’, ‘OReilly’, ‘2009’, 58000);

INSERT INTO books (title, publisher, year, price)

  VALUES(‘C Programming Language’, ‘Prentice-Hall’, ‘1989’, 35000);

INSERT INTO books (title, publisher, year, price)

  VALUES(‘Head First SQL’, ‘OReilly’, ‘2007’, 43700);

서버

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import javax.swing.DefaultListModel;

import javax.swing.JFrame;

import javax.swing.JList;

class MyFrame extends JFrame {

DefaultListModel listModel ;

MyFrame(DefaultListModel listModel){

this.listModel = listModel;

setSize(600, 400);

setDefaultCloseOperation(this.EXIT_ON_CLOSE);

JList list = new JList(listModel);

add(list);

setVisible(true);

}

}

public class Server {

public static DefaultListModel listModel = new DefaultListModel();

public static void main(String[] args) {

try {

ServerSocket ss = new ServerSocket(5555);

Socket s;

MyFrame mf = new MyFrame(listModel);

while (true) {

s = ss.accept();

listModel.addElement( s.getInetAddress() );

System.out.println("입장 : " + s.getInetAddress());

PerClientThread pc = new PerClientThread();

pc.s = s;

pc.start();

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

import java.io.IOException;

import java.io.ObjectInputStream;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

public static void main(String[] args) {

try {

ServerSocket ss = new ServerSocket(5555);

Socket s;

while (true) {

s = ss.accept();

System.out.println("입장 : " + s.getInetAddress());

PerClientThread pc = new PerClientThread();

pc.s = s;

pc.start();

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

import java.io.IOException;

import java.io.ObjectInputStream;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

public static void main(String[] args) {

try {

ServerSocket ss = new ServerSocket(5555);

Socket s;

while (true) {

s = ss.accept();

System.out.println("입장 : " + s.getInetAddress());

PerClientThread pc = new PerClientThread();

pc.s = s;

pc.start();

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}