Tasuka's Workbench

Terminal Characters define

12/21/2009, 12:31 - Misc

000 0 0x00 NUL
001 1 0x01 SOH, Control-A
002 2 0x02 STX, Control-B
003 3 0x03 ETX, Control-C
004 4 0x04 EOT, Control-D
005 5 0x05 ENQ, Control-E
006 6 0x06 ACK, Control-F
007 7 0x07 BEL, Control-G
010 8 0x08 BS, backspace, Control-H
011 9 0x09 HT, tab, Control-I
012 10 0x0a LF, line feed, newline, Control-J
013 11 0x0b VT, Control-K
014 12 0x0c FF, form feed, NP, Control-L
015 13 0x0d CR, carriage return, Control-M
016 14 0x0e SO, Control-N
017 15 0x0f SI, Control-O
020 16 0x10 DLE, Control-P
021 17 0x11 DC1, XON, Control-Q
022 18 0x12 DC2, Control-R
023 19 0x13 DC3, XOFF, Control-S
024 20 0x14 DC4, Control-T
025 21 0x15 NAK, Control-U
026 22 0x16 SYN, Control-V
027 23 0x17 ETB, Control-W
030 24 0x18 CAN, Control-X
031 25 0x19 EM, Control-Y
032 26 0x1a SUB, Control-Z

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Arduino WebSwitch

12/14/2009, 17:13 - Open Source

加入了將設定寫至 Flash memory 及將 string 用 PANGMEM 放至 Flash memory 以縮小 RAM 的用量。因為測試用的 Arduino 只有 1024 byte RAM，所以要用時間換取空間，不然 1024 byte 很快就用光了。而且將原本一個 function 到底的程式，區分為多個共用 functions 以節省 Flash memory 的用量。看來效果還不錯，不過程式的可讀性變得很低。下一個來試試 Telnet 和 Finger，若拿到 ATMega328 就有 2K RAM 和 32K Flash memory 可以用，就可以將所有的 services 放在一起了。

這個程式很簡單，在 8 支 digital pin 上，連接電晶體當電子開關，控制 Relay 或 SSR，作為網路可控制110V/220V的 8 孔電源開關。可以由 Web browser 得知開關的狀態。預設的 IP address 是用 169.254.0.0/16 所以可以在一開始時用簡單 Crossover 線，接上PC Windows (設定為 DHCP)的方式設定好正確的 IP，也可以設定開關的 default 狀態。


/*
  This program is wor Arduino Ethernet Shield with W5100 ethernet chip,
  As a 8 digital pins control in web page
  Version : 1.0
  Programmer : Tasuka Hsu, Dec 1 2009
*/

// Library import
#include <Ethernet2.h>
#include <Print.h>
#include <Server.h>
#include <Client.h>
#include <EEPROM.h>
#include <avr/pgmspace.h>

// Const define 
#define LENGTH 50  // Message length
#define PINS 8     // Digital pins 1 to 8

#define EEPROM_START_ADDRESS 0
#define EEPROM_MAC EEPROM_START_ADDRESS+10
#define EEPROM_IP EEPROM_MAC+6
#define EEPROM_SUBNET EEPROM_IP+4
#define EEPROM_GATEWAY EEPROM_SUBNET+4
#define EEPROM_PORT EEPROM_GATEWAY+4
#define EEPROM_REFRESH EEPROM_PORT+2
#define EEPROM_SW EEPROM_REFRESH+2
#define EEPROM_RESERVED EEPROM_SW+8

// MAC Address
byte MAC[]={0x80,0x0c,0x01,0x01,0xef,0xfe};

byte Default IP Address setting
byte IP[]={169,254,1,1};
byte GATEWAY[]={0,0,0,0};
byte SUBNET[]={255,255,0,0};

//byte IP[]={172,16,7,250};
//byte GATEWAY[]={172,16,7,254};
//byte SUBNET[]={255,255,255,248};

byte SW[PINS]={0,0,0,0,0,0,0,0}; /* Switch defult state config */

unsigned int  PORT=80;    // HTTP port
unsigned int  REFRESH=120;  // HTTP refresh timer

// Keep Strings in Flash Memory not load into RAM for RAM space save
static char TITLE_S[] PROGMEM =       "Adruino Digital Pins Control";
static char ANNOUNCE[] PROGMEM =      "Tasuka Lab";
static char FOOTER0[] PROGMEM =       "Open source of hardware and software for Arduino";
static char FOOTER1[] PROGMEM =       "Program By Tasuka Hsu";
static char ARDUINO_WEB[] PROGMEM =   "http://www.arduino.cc";

static char HTML_HEADER0[] PROGMEM =  "HTTP/1.1 200 OK";
static char HTML_HEADER1[] PROGMEM =  "Content-Type: text/html; charset=utf-8";
static char HTML[] PROGMEM =          "<html>";
static char HTML_[] PROGMEM =         "</html>";
static char TITLE[] PROGMEM =         "<title>";
static char TITLE_[] PROGMEM =        "</title>";
static char HEAD[] PROGMEM =          "<head>";
static char HEAD_[] PROGMEM =         "</head>";
static char CENTER[] PROGMEM =        "<center>";
static char CENTER_[] PROGMEM =       "</center>";
static char BODY[] PROGMEM =          "<body>";
static char BODY_[] PROGMEM =         "</body>";
static char INPUT_TEXT[] PROGMEM =    "<input type=\"text\" name=\"";
static char INPUT_TEXT_[] PROGMEM =   "\" value=\"";
static char INPUT_TEXT__[] PROGMEM =  "\" size=\"";
static char INPUT_TEXT___[] PROGMEM = "\">";
static char INPUT_RADIO[] PROGMEM =   "<input type=\"radio\" name=\"";
static char META[] PROGMEM =          "<meta http-equiv=\"refresh\" content=\"";
static char META_[] PROGMEM =         ";url=/\">";
static char SUBMIT[] PROGMEM =        "<input type=\"submit\" value=\"Send\">";
static char CLEAR_BUF_CHKBX[] PROGMEM = "Clear Config<input type=\"checkbox\" name=\"cl0\">";
static char CHKBOX[] PROGMEM =          "<input type=\"radio\" name=\"";
static char URL_BTN_RETURN[] PROGMEM ="<a href=\"/\"><input type=\"button\" value=\"Return\"></a>";
static char URL_BTN_BACK[] PROGMEM =  "<a href=\"/?g=1\"><input type=\"button\" value=\"Back\"></a>";
static char URL_BTN_CONFIG[] PROGMEM ="<a href=\"/?g=1\"><input type=\"button\" value=\"Config\"></a>";
static char FORM[] PROGMEM =          "<form method=\"GET\" action=\"/\">";
static char FORM_[] PROGMEM =         "</form>";
static char DIGITAL_TITLE[] PROGMEM = "<tr><td>Digital Pin</td><td>On</td><td>Off</td></tr>";
static char TABLE_BORDER[] PROGMEM =  "<table border=\"1\" align=\"center\">";
static char TABLE_NO_BORDER[] PROGMEM="<table border=\"0\" align=\"center\">";
static char TABLE_[] PROGMEM =        "</table>";
static char MAC_CONFIG[] PROGMEM =    "<a href=\"/?g=2\">Config MAC Address</a>";
static char IP_CONFIG[] PROGMEM =     "<a href=\"/?g=3\">Config IP Address</a>";
static char SUBNET_CONFIG[] PROGMEM = "<a href=\"/?g=4\">Config Subnet Mask</a>";
static char GATEWAY_CONFIG[] PROGMEM ="<a href=\"/?g=5\">Config Gateway Address</a>";
static char PORT_CONFIG[] PROGMEM =   "<a href=\"/?g=6\">Config TCP Port</a>";
static char REFRESH_CONFIG[] PROGMEM ="<a href=\"/?g=7\">Config HTML Refresh Time</a>";
static char SW_CONFIG[] PROGMEM =     "<a href=\"/?g=8\">Config SW Default State</a>";
static char MAC_TITLE[] PROGMEM =     "<tr><td>MAC Address</td><td>";
static char IP_TITLE[] PROGMEM =      "<tr><td>IP Address</td><td>";
static char SUBNET_TITLE[] PROGMEM =  "<tr><td>Subnet Mask</td><td>";
static char GATEWAY_TITLE[] PROGMEM = "<tr><td>Gateway</td><td>";
static char PORT_TITLE[] PROGMEM =    "<tr><td>TCP Port</td><td>";
static char REFRESH_TITLE[] PROGMEM = "<tr><td>HTML Refresh Time</td><td>";
static char SW_TITLE[] PROGMEM =      "<tr><td>Switch Default State</td><td>";
static char TD_TR_[] PROGMEM =        "</td></tr>";
static char TD_TR_BR[] PROGMEM =      "</td></tr><br><tr><td>";
static char ON_OFF[] PROGMEM =        "<tr><td></td><td>On/Off</td></tr>";
static char CHECKED[] PROGMEM =       "\" checked=\"checked";
static char SPACE[] PROGMEM =         " ";

// The string address pointer
PROGMEM const char *string_table[]={
  TITLE_S,       //0
  ANNOUNCE,
  FOOTER0,
  FOOTER1,
  ARDUINO_WEB,
  HTML_HEADER0,  //5
  HTML_HEADER1,
  HTML,
  HTML_,
  TITLE,
  TITLE_,        //10
  HEAD,
  HEAD_,
  CENTER,
  CENTER_,
  META,         //15
  BODY,
  BODY_,
  INPUT_TEXT,
  INPUT_TEXT_,
  INPUT_TEXT__,  //20
  INPUT_TEXT___,
  SUBMIT,
  CLEAR_BUF_CHKBX,
  URL_BTN_RETURN,
  URL_BTN_BACK,  //25
  URL_BTN_CONFIG,
  TABLE_,
  FORM,
  META_,
  DIGITAL_TITLE,  //30
  TABLE_BORDER,
  MAC_CONFIG,
  IP_CONFIG,
  SUBNET_CONFIG,
  GATEWAY_CONFIG, // 35
  PORT_CONFIG,    
  REFRESH_CONFIG,
  TABLE_NO_BORDER,
  MAC_TITLE,
  IP_TITLE,       //40
  SUBNET_TITLE,   
  GATEWAY_TITLE,
  PORT_TITLE,
  REFRESH_TITLE,
  INPUT_RADIO, //45
  FORM_,
  TD_TR_,
  SW_CONFIG,
  SW_TITLE,
  CHKBOX,  //50
  TD_TR_BR,
  ON_OFF,
  CHECKED,
  SPACE
};

// RAM buffer for strings move from flash memory
char buffer[70];

// CGI GET messages buffer
char MESSAGE[LENGTH+1];
byte page=0;
boolean bootUp=true;

// HTTP Server setting
//Server server=Server(PORT);
    
// Load string's content from Flash memory by index of pointer to RAM
void get2RAM(byte k)
{
  strcpy_P(buffer,(char *)pgm_read_word(&(string_table[k])));
}

void ReadWriteConfig()
{
  byte i=0;

  get2RAM(1);
  // Write default data to EEPROM
  if((EEPROM.read(EEPROM_START_ADDRESS)!=buffer[0])&&(EEPROM.read(EEPROM_START_ADDRESS+1)!=buffer[1])){
    for(i=0;i<10;i++){
      EEPROM.write(EEPROM_START_ADDRESS+i,buffer);
      if(i<PINS){
        EEPROM.write(EEPROM_SW+i,LOW);
        SW=0;
        if(i<6){
          EEPROM.write(EEPROM_MAC+i,MAC);
          if(i<4){
            EEPROM.write(EEPROM_IP+i,IP);
            EEPROM.write(EEPROM_GATEWAY+i,GATEWAY);
            EEPROM.write(EEPROM_SUBNET+i,SUBNET);
          }
        }
      }
    }
    EEPROM.write(EEPROM_PORT,byte((PORT&0xff00)/256));
    EEPROM.write(EEPROM_PORT+1,byte(PORT&0x00ff));
    EEPROM.write(EEPROM_REFRESH,byte((REFRESH&0xff00)/256));
    EEPROM.write(EEPROM_REFRESH+1,byte(REFRESH&0x00ff));
  }else{
    // Read config data from EEPROM
    for(i=0;i<PINS;i++){
      SW=EEPROM.read(EEPROM_SW+i);
      if(i<6){
        MAC=EEPROM.read(EEPROM_MAC+i);   
        if(i<4){
          IP=EEPROM.read(EEPROM_IP+i);
          GATEWAY=EEPROM.read(EEPROM_GATEWAY+i);
          SUBNET=EEPROM.read(EEPROM_SUBNET+i);
        }
      }
    }
    PORT=(int(EEPROM.read(EEPROM_PORT))*256)+int(EEPROM.read(EEPROM_PORT+1));
    REFRESH=(int(EEPROM.read(EEPROM_REFRESH))*256)+int(EEPROM.read(EEPROM_REFRESH+1));
  }
}

void char2Hex(byte m)
{
  byte j=0;
  
  for(byte i=0;i<2;i++){
    if(i==0){
      j=(m&0xf0)/16;
    }else{
      j=m&0x0f;
    }
    if(j>=0&&j<=9){
      buffer=char(int(j)+'0');
    }else{
      buffer=char(int(j)+'A'-10);
    }
  }
  buffer[2]='\0';
}

byte getIP(byte i,byte t)
{
  byte j=MESSAGE[i+2]-'0';
  byte k=4;
  if(j>=0&&j<4){
    byte l=0;
    while((MESSAGE[i+k]!='&')&&(MESSAGE[i+k]!=' ')&&(MESSAGE[i+k]!='\n')&&(MESSAGE[i+k]!='\r')&&(MESSAGE[i+k]!='\0')){
      l=l*10+byte(MESSAGE[i+k]-'0');
      k++;
    }
    switch(t){
      case 1:
        IP[j]=l;
        EEPROM.write(EEPROM_IP+j,l);
        break;
      case 2:
        SUBNET[j]=l;
        EEPROM.write(EEPROM_SUBNET+j,l);
        break;
      case 3:
        GATEWAY[j]=l;
        EEPROM.write(EEPROM_GATEWAY+j,l);
        break;
    }
  }
  return(k);
}

byte getDigit(byte i,byte t)
{
  byte k=4;
  unsigned int l=0;
  while((MESSAGE[i+k]!='&')&&(MESSAGE[i+k]!=' ')&&(MESSAGE[i+k]!='\n')&&(MESSAGE[i+k]!='\r')&&(MESSAGE[i+k]!='\0')){
    l=l*10+byte(MESSAGE[i+k]-'0');
    k++;
  }
  switch(t){
    case 1:
      PORT=l;
      EEPROM.write(EEPROM_PORT,byte((PORT&0xff00)/256));
      EEPROM.write(EEPROM_PORT+1,byte(PORT&0x00ff));
      break;
    case 2:
    REFRESH=l;
    EEPROM.write(EEPROM_REFRESH,byte((REFRESH&0xff00)/256));
    EEPROM.write(EEPROM_REFRESH+1,byte(REFRESH&0x00ff));
    break;
  }
  return(k);
}
void parseCGI()
{
  byte i=0;
  byte flag=false;
   
  // Send to Digital pins from parse HTTP send message
  while(MESSAGE!='\0'){
    // Port Status
    if((MESSAGE=='p'||MESSAGE=='P')&&(MESSAGE[i+2]=='=')){
      digitalWrite(int(MESSAGE[i+1])-'0',int(MESSAGE[i+3])-'0');
      i+=3;
    }
    // Page
    if((MESSAGE=='g'||MESSAGE=='G')&&(MESSAGE[i+1]=='=')){
      page=MESSAGE[i+2]-'0';
      i+=2;
    }
    // Clear EEPROM to zero
    if((MESSAGE=='c'||MESSAGE=='C')&&(MESSAGE[i+1]=='l'||MESSAGE[i+1]=='L')&&(MESSAGE[i+2]=='0')&&(MESSAGE[i+3]=='=')){
      for(int j=0;j<512;j++){
        EEPROM.write(EEPROM_START_ADDRESS+j,0);
      }
      i+=6;
    }
    // MAC Address Config and Write MAC to EEPROM      
    if((MESSAGE=='m'||MESSAGE=='M')&&(MESSAGE[i+1]=='a'||MESSAGE[i+1]=='A')&&(MESSAGE[i+3]=='=')){
      byte j=MESSAGE[i+2]-'0';
      if(j>=0&&j<6){
        for(byte l=0;l<2;l++){
          byte k=MESSAGE[i+4+l];
          // Change to upper case
          if(k>'Z'){
            k=k-'a'+'A';
          }
          if(k<='9'&&k>='0'){
            switch(l){
              case 0:
                MAC[j]=byte(int(k-'0')*16);
                break;
              case 1:
                MAC[j]+=byte(int(k-'0'));
                break;
            }
          }else{
            switch(l){
              case 0:
                MAC[j]=byte(int(k-'A'+10)*16);
                break;
              case 1:
                MAC[j]+=byte(int(k-'A'+10));
                break;
            }
          }
        }
        EEPROM.write(EEPROM_MAC+j,MAC[j]);
      }
      i+=5;
    }
    // IP Address Config and Write to EEPROM      
    if((MESSAGE=='i'||MESSAGE=='I')&&(MESSAGE[i+1]=='p'||MESSAGE[i+1]=='P')&&(MESSAGE[i+3]=='=')){              
      i+=getIP(i,1);
    }
    // Subnet Address Config and Write to EEPROM      
    if((MESSAGE=='s'||MESSAGE=='S')&&(MESSAGE[i+1]=='b'||MESSAGE[i+1]=='B')&&(MESSAGE[i+3]=='=')){
      i+=getIP(i,2);
    }
    // Gateway Address Config and Write to EEPROM      
    if((MESSAGE=='g'||MESSAGE=='G')&&(MESSAGE[i+1]=='w'||MESSAGE[i+1]=='W')&&(MESSAGE[i+3]=='=')){
      i+=getIP(i,3);
    }
    // Port Config and Write to EEPROM      
    if((MESSAGE=='p'||MESSAGE=='P')&&(MESSAGE[i+1]=='r'||MESSAGE[i+1]=='R')&&(MESSAGE[i+2]=='0')&&(MESSAGE[i+3]=='=')){
      i+=getDigit(i,1);
    }
    // Refresh Time Config and Write to EEPROM      
    if((MESSAGE=='r'||MESSAGE=='R')&&(MESSAGE[i+1]=='f'||MESSAGE[i+1]=='F')&&(MESSAGE[i+2]=='0')&&(MESSAGE[i+3]=='=')){
      i+=getDigit(i,2);
    }
    // Switch default state Config and Write to EEPROM      
    if((MESSAGE=='s'||MESSAGE=='S')&&(MESSAGE[i+1]=='w'||MESSAGE[i+1]=='W')&&(MESSAGE[i+3]=='=')){
      byte j=MESSAGE[i+2]-'0';
      SW[j]=byte(MESSAGE[i+4]-'0');
      EEPROM.write(EEPROM_SW+j,SW[j]);
      i+=5;
    }
    i++;
  }
}

void setup()
{
  // Read/Write config from/to EEPROM
  ReadWriteConfig();

  // Initial digital pin setting to EEPROM store setting
  for(byte i=0;i<PINS;i++){
    pinMode(i,OUTPUT);
    digitalWrite(i,SW);
  }
}

void loop()
{
  Server server=Server(PORT);
  if(bootUp){
    // Initial Ethernet MAC and IP setting
    Ethernet.begin(MAC,IP,GATEWAY,SUBNET);

    // Start server listen
    server.begin();
    bootUp=false;
  }
  
  /* Initial client */
  Client client=server.available();
  
  if(client) {
    boolean current_line_is_blank=true,flag=false;
    char c='\0';
    byte i=0;
    
    // If connected
    while(client.connected()){
      if(client.available()){
        
        /* Clear MESSAGE */
        for(i=0;i<LENGTH;i++){
          MESSAGE='\0';
        }
        
        flag=false;
        i=0;

        // Read from HTTP GET input information
        while((c=client.read())!='\n' && i<=LENGTH){
          if(c=='?'){
            flag=true;
          }
          if(c==' '||c=='\n'||c=='\0'){
            flag=false;
          }
          if(flag){
            MESSAGE[i++]=c;
          }
        }
        MESSAGE='\0';
        
        page=0;
        parseCGI();

        if(current_line_is_blank){  
          // Send HTTP header
          get2RAM(5);
          client.println(buffer);
          //client.println("HTTP/1.1 200 OK");
          get2RAM(6);
          client.println(buffer);
          //client.println("Content-Type: text/html; charset=utf-8");
          client.println();
          
          // Send HTML
          get2RAM(7);
          client.println(buffer); 
          //client.println("<html>");
          get2RAM(9);
          client.print(buffer);
          //client.print("<title>");
          get2RAM(0);
          client.print(buffer);
          //client.print(TITLE);
          get2RAM(10);
          client.println(buffer);
          //client.println("</title>");
          get2RAM(11);
          //client.print("<head>");
          client.print(buffer);
          get2RAM(13);
          client.print(buffer);
          //client.print("<center>");
          client.print("<h1>");
          get2RAM(0);
          client.print(buffer);
          //client.print(TITLE);
          client.print("</h1>");
          get2RAM(14);
          client.print(buffer);
          //client.println("</center>");
          get2RAM(15);
          client.print(buffer);
          //client.print("<meta http-equiv=\"refresh\" content=\"");
          
          if(page==0){    
            client.print(REFRESH);
          }else{
            client.print(3600);
          }
          
          get2RAM(29);
          client.print(buffer);
          //client.println(";url=/\">");
          get2RAM(12);
          client.println(buffer);
          //client.println("</head>");
          get2RAM(16);
          client.print(buffer);
          //client.println("<body>");
          client.println("<hr>");
          get2RAM(28);
          client.print(buffer);
          //client.print("<form method=\"");
          //client.print("GET");
          //client.print("\"");
          //client.println(" action=\"/\">");
 
        if(page==0){          
          // Read data from digital pin
          get2RAM(31);
          client.print(buffer);
/*          
          client.print("<table border=\"");
          client.print(1);
          client.print("\"");
          client.print(" ");
          client.print("align=\"");
          client.print("center");
          client.print("\"");
          client.println(">");
*/          
          get2RAM(30);
          client.print(buffer);
/*
          client.print("<tr>");
          client.print("<td>");
          client.print("Digital");
          client.print(" ");
          client.print("Pin");
          client.print("</td>");
          client.print("<td>");
          client.print("On");
          client.print("</td>");
          client.print("<td>");
          client.print("Off");
          client.print("</td>");
          client.println("</tr>");
*/          
          for(i=0;i<PINS;i++){
            client.print("<tr><td>SW ");
            client.print(int(i));
            client.println("</td><td>");
            
            /* Display pins status */
            if(digitalRead(i)==HIGH){
              get2RAM(45);
              client.print(buffer);
              client.print("p");
              client.print(int(i));
              get2RAM(53);
              client.print(buffer);
              //client.print("\" checked=\"checked");
              client.print(1);
              get2RAM(21);
              client.print(buffer);
/*
              client.print("<input type=radio");
              client.print(" ");
              client.print("name=\"");
              client.print("p");
              client.print(int(i));
              client.print("\"");
              client.print(" ");
              client.print("checked");
              client.print(" ");
              client.print("value=\"");
              client.print(1);
              client.print("\">");
*/
              client.println("</td>");

              client.print("<td>");
              get2RAM(45);
              client.print(buffer);
              client.print("p");
              client.print(int(i));
              get2RAM(19);
              client.print(buffer);
              client.print(0);
              get2RAM(21);
              client.print(buffer);
/*
              client.print("<input type=radio");
              client.print(" ");
              client.print("name=\"");
              client.print("p");
              client.print(int(i));
              client.print("\"");
              client.print(" ");
              client.print("value=\"");
              client.print(0);
              client.println("\">");
*/
            }else{
              get2RAM(45);
              client.print(buffer);
              client.print("p");
              client.print(int(i));
              get2RAM(19);
              client.print(buffer);
              client.print(1);
              get2RAM(21);
              client.print(buffer);
/*
              client.print("<input type=radio");
              client.print(" ");
              client.print("value=\"");
              client.print(1);
              client.print("\"");
              client.print(" ");
              client.print("name=\"");
              client.print("p");
              client.print(int(i));
              client.print("\">");
*/
              client.println("</td>");

              client.print("<td>");
              get2RAM(45);
              client.print(buffer);
              client.print("p");
              client.print(int(i));
              get2RAM(53);
              client.print(buffer);
              //client.print("\" checked=\"checked");
              get2RAM(19);
              client.print(buffer);
              client.print(0);
              get2RAM(21);
              client.print(buffer);
/*
              client.print("<input type=radio");
              client.print(" ");
              client.print("checked");
              client.print(" ");
              client.print("value=\"");
              client.print(0);
              client.print("\"");
              client.print(" ");
              client.print("name=\"");
              client.print("p");
              client.print(int(i));
              client.println("\">");
*/
            }
            
            get2RAM(47);
            client.print(buffer);
            //client.println("</td></tr>");

          }
          get2RAM(27);
          client.print(buffer);     
          //client.print("</table>");
        }
        
        get2RAM(13);
        client.print(buffer);
        //client.print("<center>");
        if(page==1){
          get2RAM(32);
          client.print(buffer);
/*
          client.print("<a href=\"/?g=");
          client.print(2);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("MAC Address");
          client.print("</a>");
*/
          client.println("<br>");

          get2RAM(33);
          client.print(buffer);
/*
          client.print("<a href=\"/?g=");
          client.print(3);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("IP Address");
          client.print("</a>");
*/
          client.println("<br>");
          
          get2RAM(34);
          client.print(buffer);
/*          
          client.print("<a href=\"/?g=");
          client.print(4);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("Subnet Mask");
          client.print("</a>");
*/
          client.println("<br>");

          get2RAM(35);
          client.print(buffer);   
/*          
          client.print("<a href=\"/?g=");
          client.print(5);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("Gateway Address");
          client.print("</a>");
*/
          client.println("<br>");
          
          get2RAM(36);
          client.print(buffer);
/*          
          client.print("<a href=\"/?g=");
          client.print(6);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("TCP Port");
          client.print("</a>");
*/
          client.println("<br>");

          get2RAM(37);
          client.print(buffer);
/*          
          client.print("<a href=\"/?g=");
          client.print(7);
          client.print("\"");
          client.print(">");
          client.print("Config");
          client.print(" ");
          client.print("HTML Refresh Time");
          client.print("</a>");
*/
          client.println("<br>");

          get2RAM(48);
          client.print(buffer);
          
          client.println("<br>");
        }
        if(page>=2){
          get2RAM(38);
          client.print(buffer);
/*          
          client.print("<table border=\"");
          client.print(0);
          client.print("\"");
          client.print(" ");
          client.print("align=\"");
          client.print("center");
          client.print("\"");
          client.print(">");
*/

          if(page==2){
            get2RAM(39);
            client.print(buffer);
/*
            client.println("<tr>");
            client.print("<td>");
            client.print("MAC Address");
            client.println("</td>");
          
            client.print("<td>");
*/
            for(i=0;i<6;i++){
              if(i>0&&i<6){
                client.print(":");
              }
              get2RAM(18);
              client.print(buffer);
              client.print("ma");
              client.print(int(i));
              get2RAM(19);
              client.print(buffer);
              char2Hex(MAC);
              client.print(buffer);
              get2RAM(20);
              client.print(buffer);
              client.print(2);
              get2RAM(21);
              client.print(buffer);
            }            

            client.println("</td>");
          }
          
          if(page==3){
            get2RAM(40);
            client.print(buffer);
/*
            client.println("<tr>");
          
            client.print("<td>");
            client.print("IP Address");
            client.println("</td>");
          
            client.println("<td>");
*/            
            for(i=0;i<4;i++){
              if(i>0&&i<4){
                client.print(".");
              }
              get2RAM(18);
              client.print(buffer);
              client.print("ip");
              client.print(int(i));
              get2RAM(20);
              client.print(buffer);
              client.print(3);
              get2RAM(19);
              client.print(buffer);
              client.print(int(IP));
              get2RAM(21);
              client.print(buffer);
            }
            
            get2RAM(47);
            client.print(buffer);            
            //client.println("</td></tr>");
          }
          
          if(page==4){
            get2RAM(41);
            client.print(buffer);
/*
            client.println("<tr>");
            client.print("<td>");
            client.print("Subnet Mask");
            client.println("</td>");
          
            client.println("<td>");
*/
            for(i=0;i<4;i++){
              if(i>0&&i<4){
                client.print(".");
              }
              get2RAM(18);
              client.print(buffer);
              client.print("sb");
              client.print(int(i));
              get2RAM(20);
              client.print(buffer);
              client.print(3);
              get2RAM(19);
              client.print(buffer);
              client.print(int(SUBNET));
              get2RAM(21);
              client.print(buffer);
            }
            
            get2RAM(47);
            client.print(buffer);            
            //client.println("</td></tr>");
          }
          
            if(page==5){
              get2RAM(42);
              client.print(buffer);
/*
              client.println("<tr>");
              client.println("<td>");
              client.print("Gateway");
              client.println("</td>");
          
              client.print("<td>");
*/
              for(i=0;i<4;i++){
                if(i>0&&i<4){
                  client.print(".");
                }
                get2RAM(18);
                client.print(buffer);
                client.print("gw");
                client.print(int(i));
                get2RAM(20);
                client.print(buffer);
                client.print(3);
                get2RAM(19);
                client.print(buffer);
                client.print(int(GATEWAY));
                get2RAM(21);
                client.print(buffer);
              }
              
              get2RAM(47);
              client.print(buffer);              
              //client.println("</td></tr>");
            }
          
            if(page==6){
              get2RAM(43);
              client.print(buffer);
/*
              client.println("<tr>");
              client.print("<td>");
              client.print("TCP Port");
              client.println("</td>");

              client.println("<td>");
*/              
              get2RAM(18);
              client.print(buffer);
              client.print("pr");
              client.print(0);
              get2RAM(20);
              client.print(buffer);
              client.print(5);
              get2RAM(19);
              client.print(buffer);
              client.print((unsigned int)int(PORT));
              get2RAM(21);
              client.print(buffer);

              get2RAM(47);
              client.print(buffer);          
              //client.println("</td></tr>");    
            }
          
            if(page==7){
              //client.println("<td>");
              get2RAM(44);
              client.print(buffer);

              get2RAM(18);
              client.print(buffer);
              client.print("rf");
              client.print(0);
              get2RAM(20);
              client.print(buffer);
              client.print(3);
              get2RAM(19);
              client.print(buffer);
              client.print((unsigned int)int(REFRESH));
              get2RAM(21);
              client.print(buffer);
              
              get2RAM(47);
              client.print(buffer);
              //client.println("</td></tr>");    
            }
            
          if(page==8){
            get2RAM(49);
            client.print(buffer);
            get2RAM(51);
            client.print(buffer);
            //client.print("</td></tr><br><tr><td>");
            get2RAM(38);
            client.print(buffer);
            get2RAM(52);
            client.print(buffer);
            //client.println("<tr><td></td><td>On/Off</td></tr>");
            
            for(i=0;i<PINS;i++){
              client.print("<tr><td>SW");
              client.print(int(i));
              client.print("</td><td>");
              get2RAM(45);
              client.print(buffer);
              //client.print("<input type=\"radio\" name=\"sw");
              client.print("sw");
              client.print(int(i));
              get2RAM(19);
              client.print(buffer); 
              //client.print("\" value=\"");
              client.print(1);
              if(SW==1){
                get2RAM(53);
                client.print(buffer);
                //client.print("\" checked=\"checked");
              }
              get2RAM(21);
              client.print(buffer);
               
              get2RAM(45);
              client.print(buffer);
              //client.print("<input type=\"radio\" name=\"sw");
              client.print("sw");
              client.print(int(i));
              get2RAM(19);
              client.print(buffer); 
              //client.print("\" value=\"");
              client.print(0);
              if(SW==0){
                get2RAM(53);
                client.print(buffer);
                //client.print("\" checked=\"checked");
              }
              get2RAM(21);
              client.print(buffer);
              
              get2RAM(47);
              client.print(buffer);
              //client.println("</td></tr>");
            }
            get2RAM(27);
            client.print(buffer); 
            //client.print("</table>");
            get2RAM(47);
            client.print(buffer); 
            //client.print("</td></tr>");
            get2RAM(47);
            client.print(buffer);            
            //client.println("</td></tr>");
          }            
            get2RAM(27);
            client.print(buffer);
            //client.println("</table>");
            client.println("<br>");
          }
          get2RAM(14);
          client.print(buffer);
          //client.println("</center>");
          
          if(page>=2){
            get2RAM(13);
            client.print(buffer);
            //client.println("<center>");
            get2RAM(23);
            client.print(buffer);
            get2RAM(14);
            client.print(buffer);
            //client.println("</center>");
            client.println("<br>");
          }
          
          if(page!=1){
            get2RAM(13);
            client.print(buffer);
            //client.println("<center>");
            get2RAM(22);
            client.print(buffer);
            get2RAM(14);
            client.print(buffer);
            //client.println("</center>");
          }
          
          get2RAM(46);
          client.print(buffer);
          //client.println("</form>");
          client.println("<br>");
          
          client.print("<hr>");
          get2RAM(13);
          client.print(buffer);
          //client.print("<center>");          
          if(page==0){
            get2RAM(26);
            client.print(buffer);
          }
          if(page>=2){
            get2RAM(25);
            client.print(buffer);
          }
          if(page!=0){
            get2RAM(24);
            client.print(buffer);
          }
          get2RAM(14);
          client.print(buffer);
          //client.print("</center>");
          client.println("<br>");
/*
// Debug received message
          client.print("Message=");
          client.println(MESSAGE);
          
          for(i=0;i<16;i++){
            client.print(int(EEPROM.read(EEPROM_START_ADDRESS+i)));
            client.print(" ");
          }
          client.print("Page ");
          client.println(int(page));
// Debug message end
*/          
          // HTML tail
          client.println("<h6>");
          get2RAM(2);
          client.print(buffer);
          client.print("<br>");
          //client.println("Open source of hardware and software for Arduino";
          
          client.print("<a href=");
          get2RAM(4);
          client.print(buffer);
          //client.print("http://www.arduino.cc");
          client.print(">");
          get2RAM(4);
          client.print(buffer);
          //client.print("http://www.arduino.cc");
          client.print("</a>");
          
          client.print("<br>");
          get2RAM(3);
          client.println(buffer);
          client.println("<br>");
          
          client.println("</h6>");
          get2RAM(17);
          client.println(buffer);
          //client.println("</body>");
          get2RAM(8);
          client.println(buffer);
          //client.println("</html>");
          break;
        }
        if(c=='\n'){
          current_line_is_blank=false;
        }
      }
    }
    delay(1);
    client.stop();
  }
}

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SED recursive strip

12/14/2009, 11:48 - Misc
This is a script to recursive strip some thing between "$A_PROPERTIES" and "$FUNCTIONS" also between "$FUNCTIONS" to "$NETS"
And strip all of the ":FXX." to "."

#!/bin/sh
sed -e "s/\:F[0-9]*\./\./g" $1 >$1.txt
sed -e "/^\$A_PROPERTIES/,/^\$FUNCTIONS/!b
/^\$A_PROPERTIES/{
x
s/^.*\n//
x
}
G
/\$FUNCTIONS/!d
s/\n.*//
" $1.txt >$1.txt.txt

sed -e "/^\$FUNCTIONS/,/^\$NETS/!b
/^\$FUNCTIONS/{
x
s/^.*\n//
x
}
G
/\$NETS/!d
s/\n.*//
" $1.txt.txt >$1.txt

rm -fr $1.txt.txt

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Arduino Ethernet Shield

12/02/2009, 17:15 - Open Source
花了一點時間，用了一下Arduino 這個小東西，Open source 的硬體和軟體。順便作了一個可以經由網路控制的數位腳，及SSR當作電源開關。這個程式加上了 Arduino Ethernet Shield 可以用 Arduino Ethernet Library 也可以換成 Ethernet2 Library，用 Ethernet2 空間會比較省。下次再配合 Arduino SD shield 看看吧！作起來比 Microship 的 PIC 簡單，程式工具不用錢，可以在Windows/Mac OS X/Linux 下寫程式，不必被限制一定要用Windows。不必買燒錄工具，用 USB 就可以寫入資料。不過在燒入資料時，digital pin 1 和 2 不可以接東西。目前 MAC address 和 IP 是固定的，有空再試試 DHCP library。

/*
This program is wor Arduino Ethernet Shield with W5100 ethernet chip,
As a 8 digital pins control in web page
Programmer : Tasuka Hsu, Dec 1 2009
*/

/* Library import */
#include <Ethernet2.h>
#include <Print.h>
#include <Server.h>
#include <Client.h>

/* Const define */
#define LENGTH 42 /* Message length */
#define PINS 8 /* Digital pins 1 to 8 */
#define PORT 80 /* HTTP port */
#define REFRESH 10 /* HTTP refresh timer */

/* MAC Address */
byte MAC[]={0x00,0x0c,0x01,0x01,0xef,0xff};

/* IP Address setting */
byte IP[]={172,16,7,251};
byte GATEWAY[]={172.16,7,254};
byte SUBNET[]={255,255,255,248};

/* HTTP Server setting */
Server server=Server(PORT);

char TITLE[]="Adruino Digital Pins Control";
char MESSAGE[LENGTH+1];

void setup()
{
/* Initial Ethernet MAC and IP setting */
Ethernet.begin(MAC,IP,GATEWAY,SUBNET);

/* Initial digital pin setting to default 0 */
for(int i=0;i<PINS;i++){
pinMode(i,OUTPUT);
digitalWrite(i,0);
}

/* Start server listen */
server.begin();
}

void loop()
{
/* Initial client */
Client client=server.available();

if(client) {
boolean current_line_is_blank=true,flag=false;
char c='\0';
int i=0;

/* If connected */
while(client.connected()){
if(client.available()){

/* Clear MESSAGE */
for(i=0;i<LENGTH;i++){
MESSAGE='\0';
}

flag=false;
i=0;
/* Read from HTTP GET input information */
while((c=client.read())!='\n' && i<=LENGTH){
if(c=='?'){
flag=true;
}
if(c==' '||c=='\n'||c=='\0'){
flag=false;
}
if(flag){
MESSAGE[i++]=c;
}
}
MESSAGE='\0';

i=0;
flag=false;
/* Send to Digital pins from parse HTTP send message */
while(MESSAGE!='\0'){
if((MESSAGE=='p'||MESSAGE=='P')&&(MESSAGE[i+2]=='=')){
digitalWrite(int(MESSAGE[i+1])-0x30,int(MESSAGE[i+3])-0x30);
i+=3;
}
i++;
}

if(current_line_is_blank){
/* Send HTTP header */
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html; charset=utf-8");
client.println();

/* Send HTML */
client.print("<html>\n<title>");
client.print(TITLE);
client.print("</title>\n<head>\n<center><h1>");
client.print(TITLE);
client.print("</h1></center>\n");
client.print("<meta http-equiv=\"refresh\" content=\"");
client.print(REFRESH);
client.print(";url=/\">\n</head>\n<body>\n");
client.print("<hr>\n<form method=\"GET\" action=\"/\">\n");

/* Read data from digital pin */
client.print("<table border=\"1\">\n");
client.print("<tr><td>Digital Pin</td><td>On</td><td>Off</td></tr>\n");

for(i=0;i<8;i++){
client.print("\n<tr><td>Pin ");
client.print(i);
client.print("</td>\n<td>");

/* Display pins status */
if(digitalRead(i)==1){
client.print("<input type=radio checked value=1 name=\"p");
client.print(i);
client.print("\"></td>\n");
client.print("<td><input type=radio value=0 name=\"p");
client.print(i);
client.print("\">\n");
}else{
client.print("<input type=radio value=1 name=\"p");
client.print(i);
client.print("\"></td>\n");
client.print("<td><input type=radio checked value=0 name=\"p");
client.print(i);
client.print("\">\n");
}
client.print("</td></tr>\n");

}
client.print("</table>\n");
client.print("<br><input type=submit value=\"Send\"></form><br>\n");

/* Debug received message */
// client.print("Message=");
// client.println(MESSAGE);

/* HTML tail */
client.print("<h6>\nOpen source of hardware and software for Arduino\n<br>\n");
client.print("<a href=http://www.arduino.cc>http://www.arduino.cc</a></h6>\n");
client.print("</body>\n</html>\n");
break;
}
if(c=='\n'){
current_line_is_blank=false;
}
}
}
delay(1);
client.stop();
}
}

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Parallels Desktop 5 for Mac 小小改善

11/23/2009, 11:57 - Apple
Parallels 4 Windows 7 系統分數

Parallels 5 Windows 7 系統分數

看來是好一點了，對我而言不是重點，反正我用到Windows的機會很低。想說的是為何 Ubuntu 9.10 在 Parallels 4 下，安裝 Parallels Tools 就會失敗（因為用的 Linux Kernel版本較 Parallels Tools 中支援列表的要新，沒辦法安裝），而 Parallels 5 就可以用，這對沒有更新到 Parallels 5 的人來說很不公平吧！
還有就是網路計價的問題，這去年更新 Parallels 4 時 Fred 就說過了-Parallels 4.0‥‥結帳注意事項，不過今年還是一樣。

原本想放棄 Parallels 而換用 VirtualBox 的，因為價格及支援的問題，Ubuntu 9.10 在 VirtualBox 下就很好，但是 VirtualBox 一直沒有解決 USB device 的問題，至少在我的 Windows/Linux/MacOSX 上都不能用，所以目前的Parallels還會活在我的MacBookPro上。

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OS X 10.6.2 Update

11/10/2009, 12:28 - Apple

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OS X server 10.4.11 upgrade to 10.6 問題解決

11/06/2009, 21:35 - Apple
看來是 Apache 和 PHP5 之間的問題，Snow Leopard Server 的 PHP 是

root# php -v
PHP 5.3.0 (cli) (built: Jul 19 2009 00:34:29)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2009 Zend Technologies

但是在系統中並沒有 Zend，而查看 Sample CPU load of httpd 時，發現 load 是在作 zend debug 時最多，所以在 /etc/php.ini 中加上兩行：

report_zend_debug = 0
mbstring.script_encoding=""

CPU load 就下來了。不過要試個幾天確定一下！

root# uptime
21:41 up 5 days, 10:57, 2 users, load averages: 0.03 0.08 0.52

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Snow Leopard hosts.allow and hosts.deny

11/06/2009, 15:00 - Apple
新裝好的 Snow Leopard Server, 一直收到有人用字典攻擊,在測試密碼. 先用 /etc/hosts.allow 和 /etc/hosts.deny 過濾掉沒有正確 IP 正反解的連線, 到時再用 sshdfilter 來擋!

/etc/hosts.allow

#
# hosts.allow This file describes the names of the hosts which are
# allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
#in.identd:ALL:ALLOW
#
smtpd:KNOWN,LOCAL,192.168.0.0/255.255.242.0:ALLOW
smtpd:UNKNOWN,PARANOID:DENY
#
httpd:KNOWN,LOCAL,192.168.0.0/255.255.2242.0:ALLOW
httpd:UNKNOWN,PARANOID:DENY
#
vsftpd:LOCAL,KNOWN,192.168.0.0/255.255.242.0:ALLOW
vsftpd:UNKNOWN,PARANOID:DENY
#
##in.telnetd:LOCAL,KNOWN,host,192.168.0.0/255.255.242.0:ALLOW
##in.telnetd:KNOWN,UNKNOWN,PARANOID:DENY
#
ipop3d:KNOWN,LOCAL,192.168.0.0/255.255.242.0,:ALLOW
ipop3d:UNKNOWN,PARANOID:DENY
#
imapd:KNOWN,LOCAL,192.168.0.0/255.255.242.0,:ALLOW
imapd:UNKNOWN,PARANOID:DENY
#
sshd:KNOWN,LOCAL,192.168.0.0/255.255.242.0:ALLOW
sshd:UNKNOWN,PARANOID,173.183.250.38:DENY
#
named:ALL:ALLOW
#
ALL:KNOWN,LOCAL,192.168.0.0/255.255.242.0:ALLOW
ALL:UNKNOWN,PARANOID:DENY
#

/etc/hosts.deny

#
# hosts.deny This file describes the names of the hosts which are
# *not* allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
#ALL:UNKNOWN,PARANOID:DENY

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OS X server 10.4.11 upgrade to 10.6 問題暫解

11/03/2009, 11:59 - Apple
最近將原本在 iMac G5 上的 OS X Server 從 Tiger 10.4.11 昇級並換裝至 Mac Mini 的 Snow Leopard Server 10.6. 從 PowerPC 換成 Intel 的 CPU, 因為 Apple 在這兩種 CPU 上使用的 HDD Partition 格式不同, 無法直接以原來PowerPC的硬碟在Intel機器上開機. 所以將 iMac G5 放到 Target Disk Mode, 用 Firewire 連至 MacMini, 當成資料硬碟, 就可以無痛昇級,Snow Leopard Server 系統在一安裝好之後,第一次開機會有 Server Migration 可以自動作昇級,並自動作資料的搬移及轉換, 不過時間要等有點久, Snow Leopard Server 安裝約一個小時,但需要3個小時作 migration, 最多時間用在作原本的 user 所存放的 mail 格式轉換. 10.6 server 的 postfix 己經由原本的 UNIX mailbox 格式, 換成 QMail 的 maildir 可以加快信件的處理速度. 經過 Server Migration 之後, 所有的的資料都在, 密碼及SSL的CA設定也都沒有改變, 在外部的人根本無法察覺到 Server 己經換了.

跑了兩天發現系統的 loading (uptime) 會上昇到 40 以上, CPU 100% 滿載, (一般的 UNIX 系統在 3 至 5 就不得了了), 讓系統反應變慢. 檢查的結果應該是 apache2 的關係, 原因還不明, 因為有使用 Squirrel webmail, 無法停掉 apache, 先作一個 shell script 放在 crontab 中定時檢查若 load 大於 8, 就重新起動 apache. 作為暫時解決的方案.

#!/bin/sh
AP_PS=`ps -ax|grep httpd|grep -v grep|wc -l|awk '{printf("%d\n",$1)}'`
LOAD=`uptime|awk '{printf("%d\n",$11)}'`

if [ $LOAD -ge 8 ]; then
if [ $AP_PS -ge 10 ]; then
/usr/sbin/apachectl restart
fi
fi

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Parallels Windows 7

10/30/2009, 16:08 - Apple
用 Parallels4 在 Snow Leopard 上跑 Windows 7，得到的測試結果，Graphics 還要再加強啊！

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