2013年3月29日星期五

Arduino 入門 LED 閃爍實驗

int ledPin = 10; //定義數位 pin 10 介面

void setup()

{

pinMode(ledPin, OUTPUT);//定義LED為輸出介面

}

void loop()

{

digitalWrite(ledPin, HIGH); //ON LED

delay(1000); //延時1 秒

digitalWrite(ledPin, LOW); //OFF LED

delay(1000); // 延時1 秒

}

int val; //定義變數val
int ledpin=13; //定義數位介面pin 13

void setup()
{
Serial.begin(9600); //設定串列傳輸速率為9600

pinMode(ledpin,OUTPUT);//設定數位13 為輸出介面
}

void loop()
{
val=Serial.read(); //讀取PC 發送給Arduino 的指令或字元
//並將該指令或字元賦予val

if(val=='R') //判斷接收到的指令或字元是否是R

{ //如果接收到是R

digitalWrite(ledpin,HIGH); //ON 數位13 的LED。
delay(500);
digitalWrite(ledpin,LOW); //OFF 數位13 的LED。
delay(500);
Serial.println("Hello World!"); //顯示「Hello World！」字串
//於Serial Port Monitor 上

} //end if

}

Arduino Uno安裝設定

Arduino Uno板子正面照。

背面上印有"R3"。

USB cable連接板子與電腦後，Windows會出現新增硬體視窗
因為要自行指定驅動程式，所以選「不，現在不要」。

然後選從清單或特定位置安裝（進階）

只勾選「搜尋時包含這個位置」，按下「瀏覽」，
指向Arduino軟體解壓縮後的目錄下的drivers目錄。

然後就會開始安裝了。

安裝時，你可能要按下「繼續安裝」。

DRIVER安裝完成。

接下來，要找出Arduino板子被接到哪一個序列埠上。
雖然用的是USB連接線，其實是將USB模擬成序列埠。

首先到「Tools」-「Board」設定你用的是哪塊板子。
Arduino UNO

然後到「Tools」-「Serial Port」設定的com port 。COMX

Arduino軟體提供一些寫好的程式範例，我們可以拿來測試看看。
請選「File」-「Examples」-「1.Basics」-「Blink」。

2013年3月21日星期四

http://booklens.com/u-a-bakshi/

U.a.bakshi

105 books written by U.a.bakshi

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