1.環境

• OS - Ubuntu 9.10 Desktop (32bit)
• gcc-avr - 1:4.3.3-1

2.安裝開發工具於 Ubuntu

• 安裝

  $ sudo aptitude install binutils-avr avrdude gcc-avr
  

• 安裝 ​Arduino IDE

  $ wget http://arduino.googlecode.com/files/arduino-0017.tgz
  $ tar zxvf arduino-0017.tgz
  $ cd arduino-0017
  $ ./arduino
  

3.Hello World

• 先透過 USB 連接到電腦，若是有抓到 Arduino 板子的話，可以看到 PWR 燈和 L 燈會亮起來，可透過 dmesg 指令去察看

  [   51.480017] usb 4-2: new full speed USB device using uhci_hcd and address 5
  [   51.671681] usb 4-2: configuration #1 chosen from 1 choice
  [   51.703685] usbcore: registered new interface driver usbserial
  [   51.703703] USB Serial support registered for generic
  [   51.703739] usbcore: registered new interface driver usbserial_generic
  [   51.703742] usbserial: USB Serial Driver core
  [   51.722008] USB Serial support registered for FTDI USB Serial Device
  [   51.722100] ftdi_sio 4-2:1.0: FTDI USB Serial Device converter detected
  [   51.722128] usb 4-2: Detected FT232RL
  [   51.722131] usb 4-2: Number of endpoints 2
  [   51.722133] usb 4-2: Endpoint 1 MaxPacketSize 64
  [   51.722136] usb 4-2: Endpoint 2 MaxPacketSize 64
  [   51.722138] usb 4-2: Setting MaxPacketSize 64
  [   51.723643] usb 4-2: FTDI USB Serial Device converter now attached to ttyUSB0
  [   51.723662] usbcore: registered new interface driver ftdi_sio
  [   51.723664] ftdi_sio: v1.5.0:USB FTDI Serial Converters Driver
  

• 開啟 Arduino IDE，設定連接埠

• HelloWorld 範例程式 (選取範例檔，如下圖)

• 編譯，按下 Verify 按鈕，若出現 「done compiling」表示編譯完成

• 燒錄至 Arduino 版子

• 察看 Console，此時可以觀察板子上的 TX 燈號會亮起，表示正在傳送狀態

4.控制燈號

• 此範例程式讓 L 燈亮5秒之後熄滅1秒，一樣透過 Arduino IDE "complie" 後再 "upload"，之後可看 Arduino 板子上的 L 燈變化

  #define LED 13
  void setup()
  {
  }
  
  void loop()
  {
    digitalWrite(LED, HIGH);
    delay(5000);
    digitalWrite(LED, LOW);
    delay(1000);
  }
  

4.Interfacing with linux

• Arduino 在 linux 上會被視為一個 char device，可以透過簡單的導向功能，把輸入和輸出導向 Arduino
• 此段程式碼會讓 Arduino 把輸入的字元輸出

  /*
  * Reflect serial input back.
  */
  void setup()
  {
    Serial.begin(9600);
  }
  
  void loop()
  {
    while (Serial.available() > 0) {
      Serial.write(Serial.read());
    }
  }