HTTP server is created by connecting an ENC28J60 module to the mbed board. It is serving a webpage which enables remotely turn on/off LED1 (or other device). Compile, download, run and type 192.168.0.170/secret/ into your web browser and Flot Interactivity Graphique
Dependencies: UIPEthernet mbed FCT_WEB hebergement
Fork of WebSwitch_ENC28J60 by
Page généré :
P.S : 1ère mise en fonctionnement de la carte NUCLEO STM32F411RET6 Instruction pour la mise en fonctionnement : https://developer.mbed.org/users/Fo170/notebook/the-stm32-nucleo-64-board/
Vue d'ensemble :
Vue de la carte ENC28J60 :
Carte Nucléo :
main.cpp
- Committer:
- Fo170
- Date:
- 2015-07-25
- Revision:
- 6:2ce163810c2f
- Parent:
- 5:a46a2512e17e
- Child:
- 7:acad90a34466
File content as of revision 6:2ce163810c2f:
/* In this example LED1 is switched on/off using a web browser connected to this HTTP server. * The example is based on the Tuxgraphics Web Switch <http://www.tuxgraphics.org/>. * This HTTP server is built around the the ENC28J60 chip * driven by the UIPEthernet library <https://github.com/ntruchsess/arduino_uip> * ported to mbed. */ #include <mbed.h> #include <UIPEthernet.h> #include <UIPServer.h> #include <UIPClient.h> #include <string> DigitalOut myled(LED1); AnalogIn a_in(PC_0); using namespace std; // UIPEthernet is the name of a global instance of UIPEthernetClass. // Do not change the name! It is used within the UIPEthernet library. #if defined(TARGET_LPC1768) UIPEthernetClass UIPEthernet(p11, p12, p13, p8); // mosi, miso, sck, cs #elif defined(TARGET_LPC1114) UIPEthernetClass UIPEthernet(dp2, dp1, dp6, dp25); // mosi, miso, sck, cs #elif defined(TARGET_LPC11U68) UIPEthernetClass UIPEthernet(P0_9, P0_8, P1_29, P0_2); // mosi, miso, sck, cs #elif defined (TARGET_NUCLEO_F103RB) UIPEthernetClass UIPEthernet(PB_5, PB_4, PB_3, PB_6); // mosi, miso, sck, cs #elif defined (TARGET_NUCLEO_F401RE) UIPEthernetClass UIPEthernet(PB_5, PB_4, PB_3, PB_6); // mosi, miso, sck, cs #elif defined (TARGET_NUCLEO_F411RE) UIPEthernetClass UIPEthernet(PB_5, PB_4, PB_3, PB_6); // mosi, miso, sck, cs // If your board/plaform is not present yet then uncomment the following two lines and replace TARGET_YOUR_BOARD as appropriate. //#elif defined (TARGET_YOUR_BOARD) //UIPEthernetClass UIPEthernet(SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS); // mosi, miso, sck, cs #endif // Note: // If it happends that any of the SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS pins collide with LED1 pin // then either use different SPI port (if available on the board) and change the pin names in the constructor UIPEthernet(...) accordingly // or instead of using LED1 pin, select a free pin (not used by SPI port) and connect to it an external LED which is connected to a resitor that is connected to the groud. // In the second case remember to replace LED1 in sw(LED1) constructor (see below). // MAC number must be unique within the connected network. Modify as appropriate. const uint8_t MY_MAC[6] = {0x00,0x01,0x02,0x03,0x04,0x06}; // IP address must be also unique and compatible with your network. Change as appropriate. const IPAddress MY_IP(192,168,0,170); #define __IP_LOCAL__ "192.168.0.170" #define __hebergement__ "http://olivier.fournet.free.fr/electronique/Display_temperature_on_mini_web_server_v2/js/" #define __Temp_between_measurements__ "1" #define __Temp_between_measurements_in_Second__ 1 // Logo Test d'image en base64 : // http://webcodertools.com/imagetobase64converter/Create #define __Logo_image__ "<img alt='' src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwwAADsMBx2+oZAAAABp0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjUuMTAw9HKhAAAAUklEQVQ4T2NggIEGMIBzCTDgSh0cHAjrIcFgiGFoGoCWELYQrgLIgGsg4CtkaTibWNfu378fq2tpHx6EbcAMQ8J6iPU3cpIhbCqaisFpCTwVAwB5lit+0ltbrgAAAABJRU5ErkJggg=='>"; #define __image_Password_Folder__ "<img alt='' src='http://olivier.fournet.free.fr/jpg/password_folder.jpg'>" #define __image_301_Moved_Permanently__ "<img alt='' src='http://olivier.fournet.free.fr/jpg/301_moved_permanently.jpg'>" #define __image_401_Unauthorized__ "<img alt='' src='http://olivier.fournet.free.fr/png/401_Unauthorized.png'>" #define NB_SAMPLES 10 float adc_samples[NB_SAMPLES];// = { 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.01,1.02,1.03,1.04 }; float time_samples[NB_SAMPLES];// = { -0.1,2,3,4,5,6,7,8,9,10,11,12,13,14 }; float x_min = 0.0, x_max = 0.0; float y_min = 0.0, y_max = 0.0; float Seconds; const uint16_t MY_PORT = 80; // for HTTP connection EthernetServer myServer = EthernetServer(MY_PORT); // In this example we are turning on/off LED1. DigitalOut sw(LED1); // Change LED1 to a pin of your choice. However, make sure that it does not collide with any of the SPI pins already used in the UIPEthernet(...) constructor above! const string PASSWORD = "secret"; // change as you like const string HTTP_OK = "HTTP/1.0 200 OK"; const string MOVED_PERM = "HTTP/1.0 301 Moved Permanently\r\nLocation: "; const string UNAUTHORIZED = "HTTP/1.0 401 Unauthorized"; string httpHeader; // HTTP header string httpContent; // HTTP content // analyse the url given // return values: -1 invalid password // -2 no command given but password valid // -3 just refresh page // 0 switch off // 1 switch on // // The string passed to this function will look like this: // GET /password HTTP/1..... // GET /password/ HTTP/1..... // GET /password/?sw=1 HTTP/1..... // GET /password/?sw=0 HTTP/1..... int8_t analyse_get_url(string& str) { if(str.substr(5, PASSWORD.size()) != PASSWORD) return(-1); uint8_t pos = 5 + PASSWORD.size(); if(str.substr(pos, 1) == " ") return(-2); if(str.substr(pos, 1) != "/") return(-1); pos++; string cmd(str.substr(pos, 5)); if(cmd == "?sw=0") return(0); if(cmd == "?sw=1") return(1); return(-3); } string& moved_perm(uint8_t flag) { if(flag == 1) httpContent = "/" + PASSWORD + "/"; else httpContent = ""; httpContent += "<h1>301 Moved Permanently "; httpContent += __image_301_Moved_Permanently__ "</h1>\r\n"; return (httpContent); } string& page(uint8_t status) { char buffer[32]; char time_stamp[32]; //------------- httpContent = "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\r\n"; httpContent += "<meta http-equiv=\"refresh\" content=\"" __Temp_between_measurements__ ";url=http://" __IP_LOCAL__ "/\">\r\n"; httpContent += "<HTML><HEAD>\r\n"; httpContent += "<title>WEB Server Nucleo F411RE - ENC28J60 - Flot Examples: Interactivity</title>\r\n"; httpContent += "<script language=\"javascript\" type=\"text/javascript\" src=\"" __hebergement__ "Interactivity_init.js\"></script>\r\n"; httpContent += "<script language=\"javascript\" type=\"text/javascript\">init_Interactivity();</script>\r\n"; // Variables JavaScript httpContent += "<script language=\"javascript\" type=\"text/javascript\">\r\n"; httpContent += "var color_T = \"#FF0000\";\r\n"; httpContent += "var label_t = \"Adc(x)\";\r\n"; httpContent += "var x_min = -0.5, x_max = 14.5, y_min = -0.5, y_max = 1.5;\r\n"; httpContent += "var temperature = [[-0.1,0.1],[2,0.2],[3,0.3],[4,0.4],[5,0.5],[6,0.6],[7,0.7],[8,0.8],[9,0.9],[10,1],[11,1.01],[12,1.02],[13,1.03],[14,1.04]];\r\n"; httpContent += "</script>\r\n"; // Fin Variable JavaScript httpContent += "</HEAD><BODY>\r\n"; httpContent += "<center><h2>WEB Server Nucleo F411RE</h2>\r\n"; httpContent += "<p>Designed for STM32F411RE & ENC28J60 (RTC, ADC - Flot Examples: Interactivity),\r\n"; httpContent += "<p>Compilation avec mBED à " __TIME__ " le " __DATE__" \r\n"; httpContent += __Logo_image__ "<p></center>\r\n"; httpContent += "<hr><p>\r\n"; if(status == 1) { httpContent += "<font color=#00FF00>Switch ON</font>\r\n"; } else { httpContent += "<font color=#FF0000>Switch OFF</font>\r\n"; } httpContent += "<hr>\r\n"; //------------- time_t seconds = time(NULL)+ 19800; // time(null) gives the GMT time . // printf("Time as seconds since January 1, 1970 = %d\n", seconds); strftime(time_stamp, 32, "Local Time: %y %m %d, %H:%M:%Ss", localtime(&seconds)); // this converts the value in seconds obtained above to human readable format and assigns it to the timestamp sprintf(buffer, "%s", time_stamp);// diplays the human readable time httpContent += buffer; httpContent += "\r\n"; httpContent += "<hr>\r\n"; //---------------- httpContent += "AnalogIn(PC_0) : "; sprintf(buffer, "%4.3f", a_in * 3.3); httpContent += buffer; httpContent += "V\r\n"; httpContent += "<hr>\r\n<p>Usage Password Page :<p>http://host_or_ip/password<p><hr>\r\n"; httpContent += "<script language=\"javascript\" type=\"text/javascript\">Interactivity();</script>\r\n"; httpContent += "</BODY></HTML>"; //----------- wait(1); return httpContent; } string& page_toggle_switch(uint8_t status) { //------------- httpContent = "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\r\n"; httpContent += "<HTML><HEAD>\r\n"; httpContent += "<title>WEB Server Nucleo F411RE - ENC28J60 - Password Page</title>\r\n"; httpContent += "</HEAD><BODY>\r\n"; httpContent += "<center><h2>WEB Server Nucleo F411RE - ENC28J60 - Password Page</h2></center>\r\n"; httpContent += "<p>" __image_Password_Folder__ "<p>\r\n"; if(status == 1) { httpContent += "<hr><pre>\r\n <font color=#00FF00>ON</font>"; httpContent += " <a href=\"./?sw=0\">[switch off]</a>\r\n"; } else { httpContent += "<hr><pre>\r\n <font color=#FF0000>OFF</font>"; httpContent += " <a href=\"./?sw=1\">[switch on]</a>\r\n"; } httpContent += " <a href=\".\">[refresh status]</a>\r\n"; httpContent += "</pre>\r\n"; httpContent += "<hr>\r\n"; httpContent += "</BODY></HTML>"; //----------- wait(1); return httpContent; } void http_send(EthernetClient& client, string& header, string& content) { char content_length[5] = {}; header += "\r\nContent-Type: text/html\r\n"; header += "Content-Length: "; sprintf(content_length, "%d", content.length()); header += string(content_length) + "\r\n"; header += "Pragma: no-cache\r\n"; header += "Connection: About to close\r\n"; header += "\r\n"; string webpage = header + content; client.write((uint8_t*)webpage.c_str(),webpage.length()); } int main() { // RTC set_time(1387188323); // Set RTC time to 16 December 2013 10:05:23 UTC // Date and time are set. UIPEthernet.begin(MY_MAC,MY_IP); myServer.begin(); while(1) { EthernetClient client = myServer.available(); if (client) { size_t size = client.available(); if(size > 0) { uint8_t* buf = (uint8_t*)malloc(size); size = client.read(buf, size); string received((char*)buf); free(buf); if(received.substr(0, 3) != "GET") { // head, post or other method // for possible status codes see: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html httpHeader = HTTP_OK; httpContent = "<h1>200 OK</h1>"; http_send(client, httpHeader, httpContent); continue; } if(received.substr(0, 6) == "GET / ") { httpHeader = HTTP_OK; /* httpContent = "<p>Usage: http://host_or_ip/password</p>\r\n"; http_send(client, httpHeader, httpContent); */ http_send(client, httpHeader, page(sw)); continue; } int cmd = analyse_get_url(received); if(cmd == -2) { // redirect to the right base url httpHeader = MOVED_PERM; http_send(client, httpHeader, moved_perm(1)); continue; } if(cmd == -1) { httpHeader = UNAUTHORIZED; httpContent = "<h1>401 Unauthorized"; httpContent += __image_401_Unauthorized__ "</h1>\r\n"; http_send(client, httpHeader, httpContent); continue; } if(cmd == 1) { sw = 1; // switch on } if(cmd == 0) { sw = 0; // switch off } httpHeader = HTTP_OK; http_send(client, httpHeader, page_toggle_switch(sw)); } } } }