fork download 
  1. /*
  2.   Web client
  3.  
  4.  This sketch connects to a solar system inverter and takes the power output of the moment in Watt (4 chars). Then print it to serial TTL console of arduino
  5.  using an Arduino Wiznet Ethernet shield. 
  6.  
  7.  Circuit:
  8.  * Ethernet shield attached to pins 10, 11, 12, 13
  9.  
  10.  created 18 Dec 2009
  11.  modified 9 Apr 2012
  12.  by David A. Mellis
  13.  
  14.  */
  15.  
  16. #include <SPI.h>
  17. #include <Ethernet.h>
  18.  
  19. // Enter a MAC address for your controller below.
  20. // Newer Ethernet shields have a MAC address printed on a sticker on the shield
  21. byte mac[] = {  0x90, 0xA2, 0xDA, 0x00, 0x6A, 0x23 };
  22. IPAddress server(192,168,0,55); // Solarlog 200
  23.  
  24. // Initialize the Ethernet client library
  25. // with the IP address and port of the server 
  26. // that you want to connect to (port 80 is default for HTTP):
  27. EthernetClient client;
  28.  
  29. char  cifra1;
  30. char  cifra2;
  31. char  cifra3;
  32. char  cifra4;
  33. boolean finito;
  34. int delimitatore;
  35.  
  36. void setup() {
  37.  
  38.  
  39.  
  40.   Serial.begin(9600);
  41.  
  42.     // start the Ethernet connection:
  43.   if (Ethernet.begin(mac) == 0) {
  44.     Serial.println("Failed to configure Ethernet using DHCP");
  45.     // no point in carrying on, so do nothing forevermore:
  46.     for(;;)
  47.       ;
  48.   } else { Serial.println("eth0 is up and configured via dhcp."); }
  49.  
  50.   delay(1000);
  51.  
  52. if (client.connect(server, 80)) {
  53.     // Make a HTTP request:
  54.       client.println("GET /min_day.js HTTP/1.0");
  55.       client.println();
  56.       }
  57.  
  58.  
  59.  
  60. }
  61.  
  62. void loop() {
  63.  
  64.  
  65.  
  66. finito = 0;
  67.  
  68. if (client.available()) {  
  69.   delimitatore  = 0;
  70.     while(finito == 0){
  71.       char c = client.read();
  72.       Serial.print(c);
  73.           if (delimitatore==1) { cifra1=c; delimitatore++; }
  74.           if (c=='|') { delimitatore++; }
  75.           if ((delimitatore==2)&& (c!=';')) { cifra2=c; delimitatore++; } else { if (c==';') {finito=1;}; };
  76.           if ((delimitatore==3)&& (c!=';')) { cifra3=c; delimitatore++; } else { if (c==';') {finito=1;}; };          
  77.           if ((delimitatore==4)&& (c!=';')) { cifra4=c; delimitatore++; } else { if (c==';') {finito=1;}; };
  78.           if (delimitatore==5) {finito=1; client.stop();};
  79.     }
  80. }    
  81.  
  82.  
  83.  
  84. Serial.println(cifra1);
  85. Serial.println(cifra2);
  86. Serial.println(cifra3);
  87. Serial.println(cifra4);
  88. Serial.println("end");
  89.  
  90. delay (5000);
  91.  
  92. }
  93.  
  94.  
  95. text that webclient reads:
  96.  
  97. m[mi++]="03.01.13 16:50:00|6;0;6;6230;212;209;13"
  98.  
  99. expected serial output:
  100. 6
  101.  
  102.  
  103.  
  104. end
  105.  
  106.  
  107. serial output:
  108.  
  109. 6
  110. 6
  111. 6
  112. 6
  113. end
  114.  
  115. why??
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cpp:16:17: fatal error: SPI.h: No such file or directory
compilation terminated.
stdout 
Standard output is empty
https://ideone.com/aPVaKh
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!