main.cpp

00001 #include "mbed.h"
00002 #include "EthernetNetIf.h"
00003 #include "UDPSocket.h"
00004 #include "NTPClient.h"
00005 #include "TextLCD.h"
00006 
00007 #define PORT 50001
00008 #define LOCATION 1000
00009 
00010 TextLCD lcd(p24, p26, p27, p28, p29, p30);
00011 AnalogIn temp_in(p20);
00012 AnalogIn humid_in(p19);
00013 
00014 Host server;
00015 IpAddr ip;
00016 UDPSocket udp;
00017 NTPClient ntp;
00018 
00019 Ticker  in;
00020 
00021 void Update(){
00022     char msg[64] ;
00023     float r_temp, r_humid;
00024     float temp,humid;
00025     char strTimeMsg[16];
00026     time_t ctTime;
00027     
00028     temp = temp_in;
00029     humid = humid_in;
00030     
00031     r_humid = humid * 3.3 * 100 ;   
00032     r_temp  =  temp * 55.0  ;
00033 
00034     ctTime = time(NULL)+32400;
00035     strftime(strTimeMsg,16,"%y/%m/%d %H:%M",localtime(&ctTime));
00036 
00037     lcd.cls();
00038     lcd.locate(0,0);
00039     lcd.printf("%s",strTimeMsg);
00040 
00041     lcd.locate(0,1);    
00042     lcd.printf("H%5.1f%% T%5.1f",r_humid,r_temp);
00043 
00044     lcd.locate(14,1);
00045     lcd.putc(0xDf); 
00046     lcd.putc(0x43);
00047       
00048     ctTime = time(NULL)+32400;
00049     strftime(strTimeMsg,16,"%y/%m/%d %H:%M",localtime(&ctTime));      
00050     sprintf(msg, "%4d\t,%6.2f\t,%6.2f\t,",LOCATION,r_temp,r_humid);
00051     strcat(msg,strTimeMsg);
00052     udp.sendto( msg, strlen(msg), &server );
00053     printf("%s\r\n",msg);
00054 }
00055 
00056 void setRTC_NTP()
00057 {
00058     char strNtpErrMsg[32] ; 
00059     
00060     Host ntpsrv(IpAddr(), 123, "ntp.nict.jp") ;
00061     NTPResult ntpResult = ntp.setTime(ntpsrv) ;
00062     
00063     if( ntpResult == NTP_OK ){
00064         sprintf(strNtpErrMsg,"NTP Connect OK!");
00065     }else if ( ntpResult == NTP_PRTCL ){
00066         sprintf(strNtpErrMsg,"NTP Protocol error.") ;
00067     }else if ( ntpResult == NTP_TIMEOUT ){
00068         sprintf(strNtpErrMsg,"Connection timeout.");  
00069     }else if ( ntpResult == NTP_DNS ){
00070         sprintf(strNtpErrMsg,"Could not resolve DNS hostname.") ;
00071     }else if ( ntpResult == NTP_PROCESSING ){
00072         sprintf(strNtpErrMsg,"Processing.");
00073     }else{
00074         sprintf(strNtpErrMsg,"NTP Error.");
00075     }
00076     printf("[%s]\r\n",strNtpErrMsg);
00077 }
00078 
00079 int main() {
00080     
00081     char ipaddr[16];
00082 
00083     EthernetNetIf eth;   // (1)  -- DHCP
00084 //    EthernetNetIf eth( // (2)  -- static IP address 
00085 //        IpAddr(192,168,0,10),     // IP Address
00086 //        IpAddr(255,255,255,0),   // Subnet Mask
00087 //        IpAddr(192,168,0,1),     // Default Gateway
00088 //        IpAddr(192,168,0,1)      // DNS Server
00089 //    ) ;
00090 
00091     lcd.cls();
00092     lcd.locate(0,0);
00093     lcd.printf("NW Setup ...    ");
00094 
00095     EthernetErr ethErr = eth.setup();
00096 
00097     if( ethErr != ETH_OK )
00098     {
00099         lcd.locate(0,0);
00100         lcd.printf("NW Setup Error! ", ethErr);
00101         return -1;
00102     }
00103     
00104     lcd.locate(0,0);
00105     lcd.printf("NW Setup ...[OK]");
00106   
00107 //    ip = IpAddr(192,168,0,4);
00108     ip = IpAddr(192,244,80,66);
00109     server = Host(ip, PORT, NULL); 
00110 
00111     lcd.locate(0,1);    
00112     sprintf(ipaddr,"%d.%d.%d.%d ",ip[0],ip[1],ip[2],ip[3]);    
00113     lcd.printf("%s",ipaddr);
00114     wait(1.0);
00115  
00116     setRTC_NTP();
00117   
00118     in.attach(&Update,10);        
00119 
00120     while(true)
00121     {
00122         Net::poll();
00123     }
00124 }