Jack Hansdampf / Mbed OS WebSwitch_ENC28J60_GSOE

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Dependencies:   UIPEthernet_GSOE

main.cpp@7:f5e11393836d, 2017-05-01 (annotated)

Committer:
hudakz
Date:
Mon May 01 20:06:24 2017 +0000
Revision:
7:f5e11393836d
Parent:
6:b38a3b476a45
Child:
8:3bd85b731cca
Button added.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 7:f5e11393836d 1 /*
hudakz 5:0ab8292e37da 2 * In this project LED1 on the mbed board is switched on/off using a web browser.
hudakz 5:0ab8292e37da 3 * However, you can easily modify the project to remotely switch on/off any external device.
hudakz 5:0ab8292e37da 4 * The HTTP server is built from an mbed board and an ENC28J60 board.
hudakz 5:0ab8292e37da 5 * ENC28J60 is driven by the UIPEthernet library <https://github.com/ntruchsess/arduino_uip>.
hudakz 4:d34811deedab 6 * The example is based on the Tuxgraphics Web Switch <http://www.tuxgraphics.org/>.
hudakz 0:68a0003c4cb8 7 */
hudakz 7:f5e11393836d 8
hudakz 7:f5e11393836d 9 //#define TARGET_STM32F103C8T6 1 // uncomment this line when using STM32F103C8T6 boards!
hudakz 6:b38a3b476a45 10
hudakz 6:b38a3b476a45 11 #if defined(TARGET_STM32F103C8T6)
hudakz 7:f5e11393836d 12 #include "stm32f103c8t6.h"
hudakz 7:f5e11393836d 13 #define LED_PIN PC_13
hudakz 7:f5e11393836d 14 const int OFF = 1;
hudakz 7:f5e11393836d 15 const int ON = 0;
hudakz 6:b38a3b476a45 16 #else
hudakz 7:f5e11393836d 17 #define LED_PIN LED1
hudakz 7:f5e11393836d 18 const int OFF = 0;
hudakz 7:f5e11393836d 19 const int ON = 1;
hudakz 6:b38a3b476a45 20 #endif
hudakz 6:b38a3b476a45 21
hudakz 6:b38a3b476a45 22 #include "mbed.h"
hudakz 6:b38a3b476a45 23 #include "UIPEthernet.h"
hudakz 6:b38a3b476a45 24 #include "UIPServer.h"
hudakz 6:b38a3b476a45 25 #include "UIPClient.h"
hudakz 6:b38a3b476a45 26 #include "string"
hudakz 0:68a0003c4cb8 27
hudakz 5:0ab8292e37da 28 using namespace std;
hudakz 0:68a0003c4cb8 29
hudakz 6:b38a3b476a45 30 Serial pc(USBTX, USBRX);
hudakz 6:b38a3b476a45 31
hudakz 6:b38a3b476a45 32 #define DHCP 1 // if you'd like to use static IP address comment out this line
hudakz 6:b38a3b476a45 33
hudakz 0:68a0003c4cb8 34 // UIPEthernet is the name of a global instance of UIPEthernetClass.
hudakz 0:68a0003c4cb8 35 // Do not change the name! It is used within the UIPEthernet library.
hudakz 0:68a0003c4cb8 36 #if defined(TARGET_LPC1768)
hudakz 5:0ab8292e37da 37 UIPEthernetClass UIPEthernet(p11, p12, p13, p8); // mosi, miso, sck, cs
hudakz 0:68a0003c4cb8 38 #elif defined(TARGET_LPC1114)
hudakz 5:0ab8292e37da 39 UIPEthernetClass UIPEthernet(dp2, dp1, dp6, dp25); // mosi, miso, sck, cs
hudakz 0:68a0003c4cb8 40 #elif defined(TARGET_LPC11U68)
hudakz 5:0ab8292e37da 41 UIPEthernetClass UIPEthernet(P0_9, P0_8, P1_29, P0_2); // mosi, miso, sck, cs
hudakz 6:b38a3b476a45 42 #elif defined(TARGET_NUCLEO_F103RB) || defined(TARGET_NUCLEO_L152RE) || defined(TARGET_NUCLEO_F030R8) \
hudakz 6:b38a3b476a45 43 || defined(TARGET_NUCLEO_F401RE) || defined(TARGET_NUCLEO_F302R8) || defined(TARGET_NUCLEO_L053R8) \
hudakz 6:b38a3b476a45 44 || defined(TARGET_NUCLEO_F411RE) || defined(TARGET_NUCLEO_F334R8) || defined(TARGET_NUCLEO_F072RB) \
hudakz 6:b38a3b476a45 45 || defined(TARGET_NUCLEO_F091RC) || defined(TARGET_NUCLEO_F303RE) || defined(TARGET_NUCLEO_F070RB)
hudakz 7:f5e11393836d 46 //UIPEthernetClass UIPEthernet(D4, D5, D3, D2); // mosi, miso, sck, cs
hudakz 7:f5e11393836d 47 //UIPEthernetClass UIPEthernet(D11, D12, D13, D10); // mosi, miso, sck, cs
hudakz 7:f5e11393836d 48 UIPEthernetClass UIPEthernet(PA_7, PA_6, PA_5, PB_6); // mosi, miso, sck, cs
hudakz 4:d34811deedab 49
hudakz 5:0ab8292e37da 50 // If your board/plaform is not present yet then uncomment
hudakz 5:0ab8292e37da 51 // the following two lines and replace TARGET_YOUR_BOARD as appropriate.
hudakz 4:d34811deedab 52
hudakz 5:0ab8292e37da 53 //#elif defined(TARGET_YOUR_BOARD)
hudakz 5:0ab8292e37da 54 //UIPEthernetClass UIPEthernet(SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS); // mosi, miso, sck, cs
hudakz 4:d34811deedab 55
hudakz 0:68a0003c4cb8 56 #endif
hudakz 0:68a0003c4cb8 57
hudakz 4:d34811deedab 58 // Note:
hudakz 4:d34811deedab 59 // If it happends that any of the SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS pins collide with LED1 pin
hudakz 5:0ab8292e37da 60 // then either use different SPI port (if available on the board) and change the pin names
hudakz 5:0ab8292e37da 61 // in the constructor UIPEthernet(...) accordingly or instead of using LED1 pin, select
hudakz 5:0ab8292e37da 62 // a free pin (not used by SPI port) and connect to it an external LED which is connected
hudakz 5:0ab8292e37da 63 // to a 220 Ohm resitor that is connected to the groud.
hudakz 4:d34811deedab 64 // In the second case remember to replace LED1 in sw(LED1) constructor (see below).
hudakz 5:0ab8292e37da 65 // MAC number must be unique within the connected network. Modify as appropriate.
hudakz 5:0ab8292e37da 66 const uint8_t MY_MAC[6] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x06 };
hudakz 5:0ab8292e37da 67 const uint16_t MY_PORT = 80; // for HTTP connection
hudakz 5:0ab8292e37da 68 EthernetServer myServer = EthernetServer(MY_PORT);
hudakz 5:0ab8292e37da 69
hudakz 0:68a0003c4cb8 70 // In this example we are turning on/off LED1.
hudakz 7:f5e11393836d 71 DigitalOut sw(LED_PIN); // Change LED_PIN to a pin of your choice.
hudakz 7:f5e11393836d 72 //DigitalOut sw(D9); // Change LED_PIN to a pin of your choice.
hudakz 7:f5e11393836d 73 float roomTemp = 21.8; // A temperature sensor output
hudakz 0:68a0003c4cb8 74
hudakz 5:0ab8292e37da 75 // However, make sure that it does not collide with any of the SPI pins
hudakz 5:0ab8292e37da 76 // already used in the UIPEthernet(...) constructor above!
hudakz 5:0ab8292e37da 77 const string PASSWORD = "secret"; // change as you like
hudakz 5:0ab8292e37da 78 const string HTTP_OK = "HTTP/1.0 200 OK";
hudakz 5:0ab8292e37da 79 const string MOVED_PERM = "HTTP/1.0 301 Moved Permanently\r\nLocation: ";
hudakz 5:0ab8292e37da 80 const string UNAUTHORIZED = "HTTP/1.0 401 Unauthorized";
hudakz 5:0ab8292e37da 81 string httpHeader; // HTTP header
hudakz 5:0ab8292e37da 82 string httpContent; // HTTP content
hudakz 0:68a0003c4cb8 83
hudakz 7:f5e11393836d 84 /**
hudakz 7:f5e11393836d 85 * @brief Analyses the received URL
hudakz 7:f5e11393836d 86 * @note The string passed to this function will look like this:
hudakz 7:f5e11393836d 87 * GET /password HTTP/1.....
hudakz 7:f5e11393836d 88 * GET /password/ HTTP/1.....
hudakz 7:f5e11393836d 89 * GET /password/?sw=1 HTTP/1.....
hudakz 7:f5e11393836d 90 * GET /password/?sw=0 HTTP/1.....
hudakz 7:f5e11393836d 91 * @param url URL string
hudakz 7:f5e11393836d 92 * @retval -1 invalid password
hudakz 7:f5e11393836d 93 * -2 no command given but password valid
hudakz 7:f5e11393836d 94 * -3 just refresh page
hudakz 7:f5e11393836d 95 * 0 switch off
hudakz 7:f5e11393836d 96 * 1 switch on
hudakz 7:f5e11393836d 97 */
hudakz 7:f5e11393836d 98 int8_t analyseURL(string& url) {
hudakz 7:f5e11393836d 99 if(url.substr(5, PASSWORD.size()) != PASSWORD)
hudakz 0:68a0003c4cb8 100 return(-1);
hudakz 0:68a0003c4cb8 101
hudakz 0:68a0003c4cb8 102 uint8_t pos = 5 + PASSWORD.size();
hudakz 0:68a0003c4cb8 103
hudakz 7:f5e11393836d 104 if(url.substr(pos, 1) == " ")
hudakz 0:68a0003c4cb8 105 return(-2);
hudakz 0:68a0003c4cb8 106
hudakz 7:f5e11393836d 107 if(url.substr(pos++, 1) != "/")
hudakz 0:68a0003c4cb8 108 return(-1);
hudakz 0:68a0003c4cb8 109
hudakz 7:f5e11393836d 110 string cmd(url.substr(pos, 5));
hudakz 0:68a0003c4cb8 111
hudakz 0:68a0003c4cb8 112 if(cmd == "?sw=0")
hudakz 6:b38a3b476a45 113 return(OFF);
hudakz 0:68a0003c4cb8 114
hudakz 0:68a0003c4cb8 115 if(cmd == "?sw=1")
hudakz 6:b38a3b476a45 116 return(ON);
hudakz 0:68a0003c4cb8 117
hudakz 0:68a0003c4cb8 118 return(-3);
hudakz 0:68a0003c4cb8 119 }
hudakz 0:68a0003c4cb8 120
hudakz 5:0ab8292e37da 121 /**
hudakz 5:0ab8292e37da 122 * @brief
hudakz 5:0ab8292e37da 123 * @note
hudakz 5:0ab8292e37da 124 * @param
hudakz 5:0ab8292e37da 125 * @retval
hudakz 5:0ab8292e37da 126 */
hudakz 7:f5e11393836d 127 string& movedPermanently(uint8_t flag)
hudakz 7:f5e11393836d 128 {
hudakz 0:68a0003c4cb8 129 if(flag == 1)
hudakz 5:0ab8292e37da 130 httpContent = "/" + PASSWORD + "/";
hudakz 0:68a0003c4cb8 131 else
hudakz 0:68a0003c4cb8 132 httpContent = "";
hudakz 0:68a0003c4cb8 133
hudakz 0:68a0003c4cb8 134 httpContent += "<h1>301 Moved Permanently</h1>\r\n";
hudakz 0:68a0003c4cb8 135
hudakz 5:0ab8292e37da 136 return(httpContent);
hudakz 0:68a0003c4cb8 137 }
hudakz 0:68a0003c4cb8 138
hudakz 5:0ab8292e37da 139 /**
hudakz 5:0ab8292e37da 140 * @brief
hudakz 5:0ab8292e37da 141 * @note
hudakz 5:0ab8292e37da 142 * @param
hudakz 5:0ab8292e37da 143 * @retval
hudakz 5:0ab8292e37da 144 */
hudakz 6:b38a3b476a45 145 string& showWebPage(uint8_t status) {
hudakz 7:f5e11393836d 146 char roomTempStr[5];
hudakz 7:f5e11393836d 147
hudakz 7:f5e11393836d 148 //roomTemp = ds1820.read();
hudakz 7:f5e11393836d 149 sprintf(roomTempStr, "%3.1f", roomTemp);
hudakz 7:f5e11393836d 150
hudakz 7:f5e11393836d 151 httpContent = "<h2><a href=\".\" title=\"Click to refresh the page\">Smart Home</a></h2>";
hudakz 7:f5e11393836d 152 httpContent += "<pre>Temperature:\t" + string(roomTempStr) + "&deg;C\r\n</pre>";
hudakz 0:68a0003c4cb8 153
hudakz 6:b38a3b476a45 154 if(status == ON) {
hudakz 7:f5e11393836d 155 httpContent += "<pre>\r\nHeating:\t<font color=#FF0000>On </font>";
hudakz 7:f5e11393836d 156 httpContent += " <a href=\"./?sw=0\"><button>Turn off</button></a>\r\n";
hudakz 5:0ab8292e37da 157 }
hudakz 5:0ab8292e37da 158 else {
hudakz 7:f5e11393836d 159 httpContent += "<pre>\r\nHeating:\t<font color=#999999>Off</font>";
hudakz 7:f5e11393836d 160 httpContent += " <a href=\"./?sw=1\"><button>Turn on</button></a>\r\n";
hudakz 0:68a0003c4cb8 161 }
hudakz 0:68a0003c4cb8 162
hudakz 0:68a0003c4cb8 163 httpContent += "</pre>\r\n";
hudakz 0:68a0003c4cb8 164 httpContent += "<hr>\r\n";
hudakz 7:f5e11393836d 165 httpContent += "<pre>2017 ARMmbed</pre>";
hudakz 0:68a0003c4cb8 166 return httpContent;
hudakz 0:68a0003c4cb8 167 }
hudakz 0:68a0003c4cb8 168
hudakz 5:0ab8292e37da 169 /**
hudakz 5:0ab8292e37da 170 * @brief
hudakz 5:0ab8292e37da 171 * @note
hudakz 5:0ab8292e37da 172 * @param
hudakz 5:0ab8292e37da 173 * @retval
hudakz 5:0ab8292e37da 174 */
hudakz 7:f5e11393836d 175 void sendHTTP(EthernetClient& client, string& header, string& content)
hudakz 7:f5e11393836d 176 {
hudakz 5:0ab8292e37da 177 char content_length[5] = { };
hudakz 0:68a0003c4cb8 178
hudakz 2:76f339a1ba9b 179 header += "\r\nContent-Type: text/html\r\n";
hudakz 0:68a0003c4cb8 180 header += "Content-Length: ";
hudakz 0:68a0003c4cb8 181 sprintf(content_length, "%d", content.length());
hudakz 0:68a0003c4cb8 182 header += string(content_length) + "\r\n";
hudakz 0:68a0003c4cb8 183 header += "Pragma: no-cache\r\n";
hudakz 0:68a0003c4cb8 184 header += "Connection: About to close\r\n";
hudakz 0:68a0003c4cb8 185 header += "\r\n";
hudakz 5:0ab8292e37da 186
hudakz 5:0ab8292e37da 187 string webpage = header + content;
hudakz 5:0ab8292e37da 188 client.write((uint8_t*)webpage.c_str(), webpage.length());
hudakz 0:68a0003c4cb8 189 }
hudakz 0:68a0003c4cb8 190
hudakz 5:0ab8292e37da 191 /**
hudakz 5:0ab8292e37da 192 * @brief
hudakz 5:0ab8292e37da 193 * @note
hudakz 5:0ab8292e37da 194 * @param
hudakz 5:0ab8292e37da 195 * @retval
hudakz 5:0ab8292e37da 196 */
hudakz 7:f5e11393836d 197 int main(void)
hudakz 7:f5e11393836d 198 {
hudakz 7:f5e11393836d 199 #if defined(TARGET_STM32F103C8T6)
hudakz 7:f5e11393836d 200 confSysClock(); //Configure system clock (72MHz HSE clock, 48MHz USB clock)
hudakz 7:f5e11393836d 201 #endif
hudakz 6:b38a3b476a45 202 #if defined(DHCP)
hudakz 6:b38a3b476a45 203 pc.printf("Searching for DHCP server..\r\n");
hudakz 6:b38a3b476a45 204 if(UIPEthernet.begin(MY_MAC) != 1) {
hudakz 6:b38a3b476a45 205 pc.printf("No DHCP server found.\r\n");
hudakz 6:b38a3b476a45 206 pc.printf("Exiting application.\r\n");
hudakz 6:b38a3b476a45 207 return 0;
hudakz 6:b38a3b476a45 208 }
hudakz 6:b38a3b476a45 209 pc.printf("DHCP server found.\r\n");
hudakz 6:b38a3b476a45 210 #else
hudakz 6:b38a3b476a45 211 // IP address must be unique and compatible with your network.
hudakz 6:b38a3b476a45 212 const IPAddress MY_IP(192, 168, 1, 181); // Change as appropriate.
hudakz 5:0ab8292e37da 213 UIPEthernet.begin(MY_MAC, MY_IP);
hudakz 6:b38a3b476a45 214 #endif
hudakz 6:b38a3b476a45 215 IPAddress localIP = UIPEthernet.localIP();
hudakz 6:b38a3b476a45 216 pc.printf("Type ");
hudakz 6:b38a3b476a45 217 for(uint8_t i = 0; i < 3; i++)
hudakz 6:b38a3b476a45 218 pc.printf("%d.", localIP[i]);
hudakz 6:b38a3b476a45 219 pc.printf("%d/secret/ into your web browser and hit ENTER\r\n", localIP[3]);
hudakz 0:68a0003c4cb8 220 myServer.begin();
hudakz 0:68a0003c4cb8 221 while(1) {
hudakz 5:0ab8292e37da 222 EthernetClient client = myServer.available();
hudakz 5:0ab8292e37da 223 if(client) {
hudakz 5:0ab8292e37da 224 size_t size = client.available();
hudakz 0:68a0003c4cb8 225 if(size > 0) {
hudakz 5:0ab8292e37da 226 uint8_t* buf = (uint8_t*)malloc(size);
hudakz 0:68a0003c4cb8 227 size = client.read(buf, size);
hudakz 5:0ab8292e37da 228 string received((char*)buf);
hudakz 0:68a0003c4cb8 229 free(buf);
hudakz 7:f5e11393836d 230
hudakz 0:68a0003c4cb8 231 if(received.substr(0, 3) != "GET") {
hudakz 0:68a0003c4cb8 232 httpHeader = HTTP_OK;
hudakz 0:68a0003c4cb8 233 httpContent = "<h1>200 OK</h1>";
hudakz 6:b38a3b476a45 234 sendHTTP(client, httpHeader, httpContent);
hudakz 0:68a0003c4cb8 235 continue;
hudakz 0:68a0003c4cb8 236 }
hudakz 0:68a0003c4cb8 237
hudakz 0:68a0003c4cb8 238 if(received.substr(0, 6) == "GET / ") {
hudakz 0:68a0003c4cb8 239 httpHeader = HTTP_OK;
hudakz 0:68a0003c4cb8 240 httpContent = "<p>Usage: http://host_or_ip/password</p>\r\n";
hudakz 6:b38a3b476a45 241 sendHTTP(client, httpHeader, httpContent);
hudakz 0:68a0003c4cb8 242 continue;
hudakz 0:68a0003c4cb8 243 }
hudakz 0:68a0003c4cb8 244
hudakz 6:b38a3b476a45 245 int cmd = analyseURL(received);
hudakz 0:68a0003c4cb8 246
hudakz 0:68a0003c4cb8 247 if(cmd == -2) {
hudakz 0:68a0003c4cb8 248 // redirect to the right base url
hudakz 0:68a0003c4cb8 249 httpHeader = MOVED_PERM;
hudakz 6:b38a3b476a45 250 sendHTTP(client, httpHeader, movedPermanently(1));
hudakz 0:68a0003c4cb8 251 continue;
hudakz 0:68a0003c4cb8 252 }
hudakz 0:68a0003c4cb8 253
hudakz 0:68a0003c4cb8 254 if(cmd == -1) {
hudakz 0:68a0003c4cb8 255 httpHeader = UNAUTHORIZED;
hudakz 0:68a0003c4cb8 256 httpContent = "<h1>401 Unauthorized</h1>";
hudakz 6:b38a3b476a45 257 sendHTTP(client, httpHeader, httpContent);
hudakz 0:68a0003c4cb8 258 continue;
hudakz 0:68a0003c4cb8 259 }
hudakz 0:68a0003c4cb8 260
hudakz 6:b38a3b476a45 261 if(cmd == ON) {
hudakz 6:b38a3b476a45 262 sw = ON; // turn the switch on
hudakz 0:68a0003c4cb8 263 }
hudakz 0:68a0003c4cb8 264
hudakz 6:b38a3b476a45 265 if(cmd == OFF) {
hudakz 6:b38a3b476a45 266 sw = OFF; // turn the switch off
hudakz 0:68a0003c4cb8 267 }
hudakz 0:68a0003c4cb8 268
hudakz 0:68a0003c4cb8 269 httpHeader = HTTP_OK;
hudakz 6:b38a3b476a45 270 sendHTTP(client, httpHeader, showWebPage(sw));
hudakz 0:68a0003c4cb8 271 }
hudakz 0:68a0003c4cb8 272 }
hudakz 0:68a0003c4cb8 273 }
hudakz 0:68a0003c4cb8 274 }