Paul Staron / Mbed 2 deprecated ESP8266-WEB-Mbed-Controller

Fork of Farrukh's webserver. Tested on LPC1768 and STM32f401 but should work on almost any platform.

Dependencies:   mbed

New version that has been tested on LPC1768 and STM32F401 Based on Farrukh's idea here: https://os.mbed.com/users/programmer5/code/STM32-ESP8266-WEBSERVER/

Enter your Wi-Fi SSID and PASSWORD and edit the espbaud to suit your ESP8266, Works fast and stable at 460800.

Use configuration program to reset and set up the ESP8266 if needed:

https://os.mbed.com/users/star297/code/ESP8266-configuaration-baudrate/

Limitations are no HTTPS.

main.cpp@5:efcfa9e61907, 2020-04-20 (annotated)

Committer:
star297
Date:
Mon Apr 20 23:10:10 2020 +0000
Revision:
5:efcfa9e61907
Parent:
4:7334688498cc
Child:
6:9f3f0db71230
update

Who changed what in which revision?

UserRevisionLine numberNew contents of line
star297 0:e2a155f50119 1 #include "mbed.h"
star297 0:e2a155f50119 2
star297 5:efcfa9e61907 3
star297 4:7334688498cc 4 // LPC1768
star297 5:efcfa9e61907 5
star297 4:7334688498cc 6 //Serial ports to be used
star297 4:7334688498cc 7 Serial pc(USBTX,USBRX);//TO BE used for debug info
star297 4:7334688498cc 8 Serial esp(p13,p14);//TX,RX TO BE CONNECTED TO ESP
star297 4:7334688498cc 9 Serial esp2(p13,p14);//TX,RX TO BE CONNECTED TO ESP
star297 4:7334688498cc 10 DigitalOut espreset(p25,1);
star297 4:7334688498cc 11 //Connections to relay
star297 4:7334688498cc 12 //relay works at logic LOW
star297 4:7334688498cc 13 DigitalOut digital_out_1(LED1,1);// High on initialization
star297 4:7334688498cc 14 DigitalOut digital_out_2(LED2,1);// High on initialization
star297 4:7334688498cc 15 DigitalOut digital_out_3(LED3,1);// High on initialization
star297 4:7334688498cc 16 DigitalOut digital_out_4(LED4,1);// High on initialization
star297 4:7334688498cc 17 //digital inputs, connected to push buttons
star297 4:7334688498cc 18 DigitalIn digital_in_1(p21);
star297 4:7334688498cc 19 DigitalIn digital_in_2(p22);
star297 4:7334688498cc 20 DigitalIn digital_in_3(p23);
star297 4:7334688498cc 21 DigitalIn digital_in_4(p24);
star297 4:7334688498cc 22 //Analog output
star297 4:7334688498cc 23 PwmOut analog_out_1(p26);
star297 4:7334688498cc 24 //Analog Input
star297 4:7334688498cc 25 AnalogIn tempSensor(p20);
star297 0:e2a155f50119 26
star297 4:7334688498cc 27 //F401
star297 4:7334688498cc 28 /*
star297 4:7334688498cc 29 //Serial ports to be used
star297 4:7334688498cc 30 Serial pc(USBTX,USBRX);//TO BE used for debug info
star297 4:7334688498cc 31 Serial esp(D8,D2);//TX,RX TO BE CONNECTED TO ESP
star297 4:7334688498cc 32 Serial esp2(D8,D2);//TX,RX TO BE CONNECTED TO ESP
star297 4:7334688498cc 33 //Connections to relay
star297 4:7334688498cc 34 //relay works at logic LOW
star297 4:7334688498cc 35 DigitalOut digital_out_1(D3,1);// High on initialization
star297 4:7334688498cc 36 DigitalOut digital_out_2(D4,1);// High on initialization
star297 4:7334688498cc 37 DigitalOut digital_out_3(D5,1);// High on initialization
star297 4:7334688498cc 38 DigitalOut digital_out_4(D6,1);// High on initialization
star297 4:7334688498cc 39 //digital inputs, connected to push buttons
star297 4:7334688498cc 40 DigitalIn digital_in_1(A1);
star297 4:7334688498cc 41 DigitalIn digital_in_2(A2);
star297 4:7334688498cc 42 DigitalIn digital_in_3(A3);
star297 4:7334688498cc 43 DigitalIn digital_in_4(A4);
star297 4:7334688498cc 44 //Analog output
star297 4:7334688498cc 45 PwmOut analog_out_1(D15);
star297 4:7334688498cc 46 //Analog Input
star297 4:7334688498cc 47 AnalogIn tempSensor(A0);
star297 4:7334688498cc 48 */
star297 4:7334688498cc 49
star297 4:7334688498cc 50 char ssid[32] = "ssid"; // enter your router ssid inside the quotes
star297 4:7334688498cc 51 char pwd[32] = "password"; // enter your router password inside the quotes
star297 4:7334688498cc 52
star297 0:e2a155f50119 53
star297 4:7334688498cc 54 #define BUFFER_SIZE 3000
star297 4:7334688498cc 55 #define REQ_LINE_BUFF_SIZE 100
star297 4:7334688498cc 56 #define UNKNOWN 0
star297 4:7334688498cc 57 #define OK 1
star297 4:7334688498cc 58 #define ERROR 2
star297 4:7334688498cc 59 #define FAIL 3
star297 4:7334688498cc 60 #define READY 4
star297 4:7334688498cc 61 #define READY_TO_WRITE_TCP 5
star297 4:7334688498cc 62
star297 0:e2a155f50119 63
star297 4:7334688498cc 64 const char get_analog_outputs_status[]="/analog_outputs";
star297 4:7334688498cc 65 const char get_Toggle_Output[]="/digital_outputs/toggle";
star297 4:7334688498cc 66 const char get_analog_inputs_status[]="/analog_inputs";
star297 4:7334688498cc 67 const char get_analog_output_update[]="/analog_outputs/update";
star297 4:7334688498cc 68 const char get_digital_output_status[]="/digital_outputs";
star297 4:7334688498cc 69 const char get_digital_inputs_html[]="/dinputs.html";
star297 4:7334688498cc 70 const char get_digital_input_status[]="/digital_inputs";
star297 4:7334688498cc 71 const char get_index_html[]="/index.html";
star297 4:7334688498cc 72 const char get_analog_outputs[]="/anoutputs.html";
star297 4:7334688498cc 73 const char get_analog_inputs_html[]="/aninputs.html";
star297 4:7334688498cc 74
star297 4:7334688498cc 75
star297 4:7334688498cc 76 const char jsonHeader[]="HTTP/1.1 200 OK\n"
star297 4:7334688498cc 77 "Content-type: application/json\r\n\r\n";
star297 2:d4c6bc0f2dc4 78
star297 4:7334688498cc 79 const char textPlainHeader[]="HTTP/1.1 200 OK\n"
star297 4:7334688498cc 80 "Content-type: text/plain\r\n\r\n";
star297 4:7334688498cc 81
star297 4:7334688498cc 82 const char index_html[]="HTTP/1.1 200 OK\n"
star297 4:7334688498cc 83 "Content-type: text/html\r\n\r\n"
star297 4:7334688498cc 84 "<!DOCTYPE html>\n<html>\n<head>\n<title>esp</title>\n<link rel=stylesheet type=text/css href=css/style.css>\n<script src=https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js></script>\n<script>$(document).ready(function(){setInterval(\"get_digital_output_status()\",2000)});function get_digital_output_status(){var a=\"/digital_outputs\";$.ajax({url:a,dataType:\"json\",success:function(b){if(b.digital_outputs.dout1==1){$(\"#dout1\").html(\"HIGH\")}else{$(\"#dout1\").html(\"LOW\")}if(b.digital_outputs.dout2==1){$(\"#dout2\").html(\"HIGH\")}else{$(\"#dout2\").html(\"LOW\")}if(b.digital_outputs.dout3==1){$(\"#dout3\").html(\"HIGH\")}else{$(\"#dout3\").html(\"LOW\")}if(b.digital_outputs.dout4==1){$(\"#dout4\").html(\"HIGH\")}else{$(\"#dout4\").html(\"LOW\")}},timeout:2000})}function digital_output_toggle(a){var b=\"/digital_outputs/toggle?pin=\"+a;$.ajax({url:b,dataType:\"text\",success:function(c){if(c==\"1\"){$(\"#\"+a).html(\"HIGH\")}else{if(c==\"0\"){$(\"#\"+a).html(\"LOW\")}else{alert(\"failed to toggle digital output\")}}},timeout:2000})};</script>\n</head>\n<body>\n<header>\n<img src=images/logo.jpg>\n<h1>ESP8266 BASED WEBSERVER</h1>\n</header>\n<nav>\n<ul>\n<li><a class=active href=index.html>Digital Outputs</a></li>\n<li><a href=dinputs.html>Digital inputs</a></li>\n<li><a href=anoutputs.html>Analog Outputs</a></li>\n<li><a href=aninputs.html>Analog Inputs</a></li>\n</ul>\n</nav>\n<section>\n<table>\n<tr>\n<th>Digital Ouput</th>\n<th>Status</th>\n<th>Option</th>\n</tr>\n<tr>\n<td>DOut1</td>\n<td id=dout1>waiting..</td>\n<td><button class=button onclick=\"digital_output_toggle('dout1')\">Toggle</button>\n</td>\n</tr>\n<tr>\n<td>DOut2</td>\n<td id=dout2>waiting..</td>\n<td><button class=button onclick=\"digital_output_toggle('dout2')\">Toggle</button>\n</tr>\n<tr>\n<td>DOut3</td>\n<td id=dout3>waiting..</td>\n<td><button class=button onclick=\"digital_output_toggle('dout3')\">Toggle</button>\n</tr>\n<tr>\n<td>DOut4</td>\n<td id=dout4>waiting..</td>\n<td><button class=button onclick=\"digital_output_toggle('dout4')\">Toggle</button>\n</tr>\n</table>\n</section>\n</body>\n</html>";
star297 4:7334688498cc 85
star297 4:7334688498cc 86 const char digitalInputs_html[]="HTTP/1.1 200 OK\n"
star297 4:7334688498cc 87 "Content-type: text/html\r\n\r\n"
star297 4:7334688498cc 88 "<!DOCTYPE html>\n<html>\n<head>\n<title>esp</title>\n<link rel=stylesheet type=text/css href=css/style.css>\n<script src=https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js></script>\n<script>$(document).ready(function(){setInterval(\"get_digital_input_status()\",2000)});function get_digital_input_status(){var a=\"/digital_inputs\";$.ajax({url:a,dataType:\"json\",success:function(b){if(b.digital_inputs.din1==1){$(\"#din1\").html(\"HIGH\")}else{$(\"#din1\").html(\"LOW\")}if(b.digital_inputs.din2==1){$(\"#din2\").html(\"HIGH\")}else{$(\"#din2\").html(\"LOW\")}if(b.digital_inputs.din3==1){$(\"#din3\").html(\"HIGH\")}else{$(\"#din3\").html(\"LOW\")}if(b.digital_inputs.din4==1){$(\"#din4\").html(\"HIGH\")}else{$(\"#din4\").html(\"LOW\")}},timeout:2000})};</script>\n</head>\n<body>\n<header>\n<img src=images/logo.jpg>\n<h1>ESP8266 BASED WEBSERVER</h1>\n</header>\n<nav>\n<ul>\n<li><a href=index.html>Digital Outputs</a></li>\n<li><a class=active href=dinputs.html>Digital inputs</a></li>\n<li><a href=anoutputs.html>Analog Outputs</a></li>\n<li><a href=aninputs.html>Analog Inputs</a></li>\n</ul>\n</nav>\n<section>\n<table id=inputsTable>\n<tr>\n<th>Digital Input</th>\n<th>Status</th>\n</tr>\n<tr>\n<td>DIn1</td>\n<td id=din1>waiting..</td>\n</td>\n</tr>\n<tr>\n<td>DIn2</td>\n<td id=din2>waiting..</td>\n</tr>\n<tr>\n<td>DIn3</td>\n<td id=din3>waiting..</td>\n</tr>\n<tr>\n<td>DIn4</td>\n<td id=din4>waiting..</td>\n</tr>\n</table>\n</section>\n</body>\n</html>";
star297 4:7334688498cc 89
star297 4:7334688498cc 90 const char analog_outputs_html[]="HTTP/1.1 200 OK\n"
star297 4:7334688498cc 91 "Content-type: text/html\r\n\r\n"
star297 5:efcfa9e61907 92 "<!DOCTYPE html>\n<html>\n<head>\n<title>esp</title>\n<link rel=stylesheet type=text/css href=css/style.css>\n<script src=https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js></script>\n<script type=text/javascript src=https://www.gstatic.com/charts/loader.js></script>\n<script>$(document).ready(function(){setInterval(\"getAnalogOutputStatus()\",2000);displayVoltageLevel()});var voltage_level=0;function getAnalogOutputStatus(){var a=\"/analog_outputs\";$.ajax({url:a,dataType:\"text\",success:function(b){voltage_level=parseFloat(b)},timeout:2000})}function setNewVoltageLevel(a){var b=\"/analog_outputs/update?value=\"+a;$.ajax({url:b,dataType:\"text\",success:function(c){voltage_level=parseFloat(c)},timeout:2000})}function displayVoltageLevel(){google.charts.load(\"current\",{packages:[\"gauge\"]});google.charts.setOnLoadCallback(a);function a(){var d=google.visualization.arrayToDataTable([[\"Label\",\"Value\"],[\"Volts\",0],]);var b={width:300,height:250,redFrom:8,redTo:12,yellowFrom:4,yellowTo:8,greenFrom:0,greenTo:4,min:0,max:12,minorTicks:5};var c=new google.visualization.Gauge(document.getElementById(\"chart_div\"));c.draw(d,b);setInterval(function(){d.setValue(0,1,voltage_level);c.draw(d,b)},500)}};</script>\n</head>\n<body>\n<header>\n<img src=images/logo.jpg>\n<h1>ESP8266 BASED WEBSERVER</h1>\n</header>\n<nav>\n<ul>\n<li><a href=index.html>Digital Outputs</a>\n</li>\n<li><a href=dinputs.html>Digital inputs</a>\n</li>\n<li><a class=active href=anoutputs.html>Analog Outputs</a>\n</li>\n<li><a href=aninputs.html>Analog Inputs</a>\n</li>\n</ul>\n</nav>\n<section>\n<h3>Enter new voltage value and press Update btton</h3>\n<input type=text id=volts maxlength=5 placeholder=Voltage..(0.00-12.00)>\n<button class=button onclick=\"setNewVoltageLevel(document.getElementById('volts').value)\">Update</button>\n<div id=chart_div style=width:300px;height:250px></div>\n<h1 style=color:blue;margin-left:50px>Voltage Level</h1>\n</section>\n</body>\n</html>";
star297 5:efcfa9e61907 93
star297 5:efcfa9e61907 94 const char analog_inputs_html[]="HTTP/1.1 200 OK\n"
star297 5:efcfa9e61907 95 "Content-type: text/html\r\n\r\n"
star297 5:efcfa9e61907 96 "<!DOCTYPE html>\n<html>\n<head>\n<title>esp</title>\n<link rel=stylesheet type=text/css href=css/style.css>\n<script src=https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js></script>\n<script>$(document).ready(function(){setInterval(\"getTemperature()\",2000)});function getTemperature(){var a=\"/analog_inputs\";$.ajax({url:a,dataType:\"text\",success:function(b){$(\"#temp\").html(b+\"&#8451;\")},timeout:2000})};</script>\n</head>\n<body>\n<header>\n<img src=images/logo.jpg>\n<h1>ESP8266 BASED WEBSERVER</h1>\n</header>\n<nav>\n<ul>\n<li><a href=index.html>Digital Outputs</a>\n</li>\n<li><a href=dinputs.html>Digital inputs</a>\n</li>\n<li><a href=anoutputs.html>Analog Outputs</a>\n</li>\n<li><a class=active href=aninputs.html>Analog Inputs</a>\n</li>\n</ul>\n</nav>\n<section>\n<h1 id=temp style=border-style:solid;border-width:6px;border-color:red;border-radius:20px;background-color:#aeb5b7;width:100px;margin-top:20px;margin-left:40px;padding:20px>Waiting..</h1>\n<h2 style=margin-left:25px;color:blue>Temperature Value</h2>\n<br><br><h2>Temperature history</h2>\n<iframe width=450 height=260 style=\"border:1px solid #ccc\" src=\"https://thingspeak.com/channels/243141/charts/1?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=100&type=line\"></iframe>\n</section>\n</body>\n</html>";
star297 5:efcfa9e61907 97
star297 5:efcfa9e61907 98 const char style_css[]="HTTP/1.1 200 OK\n"
star297 5:efcfa9e61907 99 "Content-type: text/css\r\n\r\n"
star297 5:efcfa9e61907 100 "*{padding:0;margin:0}header{background-color:#27ace5}body{font-family:calibri}header h1{text-align:center;font-size:4em;color:#fff;padding:10px}header img{width:110px;margin-top:10px;float:left}ul{list-style-type:none;margin:0;padding:0;overflow:hidden;background-color:#333}li{float:left}li a{display:block;color:#fff;text-align:center;padding:14px 16px;text-decoration:none}li a:hover:not(.active){background-color:#111}.active{background-color:#4CAF50}table{border-collapse:collapse;width:100%}table#inputsTable{border-collapse:collapse;width:70%}th,td{text-align:left;padding:8px}tr:nth-child(even){background-color:#f2f2f2}th{background-color:#4CAF50;color:#fff}section{width:60%;margin:10px}.button{display:inline-block;padding:10px 15px;font-size:15px;cursor:pointer;text-align:center;text-decoration:none;outline:none;color:#fff;background-color:#4CAF50;border:none;border-radius:15px;box-shadow:0 9px #999}.button:hover{background-color:#3e8e41}.button:active{background-color:#3e8e41;box-shadow:0 5px #666;transform:translateY(4px)}input[type=text],select{width:25%;padding:12px 20px;margin:8px 0;display:inline-block;border:1px solid #ccc;border-radius:4px;box-sizing:border-box}";
star297 5:efcfa9e61907 101
star297 5:efcfa9e61907 102 const char not_found_text[]="HTTP/1.1 404 Not Found\n"
star297 5:efcfa9e61907 103 "Content-type: text/plain\r\n\r\n"
star297 5:efcfa9e61907 104 "page not found";
star297 5:efcfa9e61907 105
star297 5:efcfa9e61907 106 //HTTP/1.1 200 OK
star297 5:efcfa9e61907 107 //Content-type:image/jpeg
star297 5:efcfa9e61907 108 const char logo_jpg[]={0x48, 0x54, 0x54, 0x50, 0x2F, 0x31, 0x2E, 0x31, 0x20, 0x32, 0x30, 0x30, 0x20, 0x4F, 0x4B, 0x0A, 0x43, 0x6F, 0x6E, 0x74, 0x65, 0x6E, 0x74, 0x2D, 0x74, 0x79, 0x70, 0x65, 0x3A, 0x69, 0x6D, 0x61, 0x67, 0x65, 0x2F, 0x6A, 0x70, 0x65, 0x67, 0x0D,0x0A,0x0D, 0x0A,
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star297 5:efcfa9e61907 110
star297 5:efcfa9e61907 111 // HTTP/1.1 200 OK
star297 5:efcfa9e61907 112 //Content-type:image/x-icon
star297 5:efcfa9e61907 113 const char favicon_ico[]={0x48, 0x54, 0x54, 0x50, 0x2F, 0x31, 0x2E, 0x31, 0x20, 0x32, 0x30, 0x30, 0x20, 0x4F, 0x4B, 0x0A, 0x43, 0x6F, 0x6E, 0x74, 0x65, 0x6E, 0x74, 0x2D, 0x74, 0x79, 0x70, 0x65, 0x3A, 0x20, 0x69, 0x6D, 0x61, 0x67, 0x65, 0x2F, 0x78, 0x2D, 0x69, 0x63, 0x6F, 0x6E,0x0D, 0x0A,0x0D, 0x0A,
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0xCC, 0xCC, 0x70, 0x70, 0x70, 0x9C, 0x9C, 0x9C, 0x9A, 0x9A, 0x9A, 0xAA, 0xAA, 0xAA, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xDC, 0xDC, 0xDC, 0x79, 0x79, 0x79, 0xA8, 0xA8, 0xA8, 0xEE, 0xEE, 0xEE, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xEA, 0xEA, 0xEA, 0xEB, 0xEB, 0xEB, 0xF7, 0xF7, 0xF7, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
star297 5:efcfa9e61907 115
star297 5:efcfa9e61907 116 char rxBuff[BUFFER_SIZE];//array to store data received from esp
star297 5:efcfa9e61907 117 char reqLineBuff[REQ_LINE_BUFF_SIZE];
star297 5:efcfa9e61907 118 unsigned char reqLinBuffIndex=0;
star297 5:efcfa9e61907 119 unsigned int bufferWritingIndex=0;//write pointer
star297 5:efcfa9e61907 120 unsigned int bufferReadingIndex_IpdSearch=0;//read pointer
star297 5:efcfa9e61907 121 unsigned int bufferReadingIndex_espRespSearch=0;//read pointer
star297 5:efcfa9e61907 122 char serverIp[16];
star297 5:efcfa9e61907 123
star297 5:efcfa9e61907 124 Timer t;
star297 5:efcfa9e61907 125
star297 5:efcfa9e61907 126 void espRxInterrupt();
star297 5:efcfa9e61907 127 char readEspResponse();
star297 5:efcfa9e61907 128 void handleHttpRequests();
star297 5:efcfa9e61907 129 void processReqLine(char *stringToProcess);
star297 5:efcfa9e61907 130 void sendMemArrayToEsp(const char*str,unsigned int len);
star297 5:efcfa9e61907 131 void sendRequestedPageToClient(char id, const char* page,unsigned int len);
star297 5:efcfa9e61907 132 void extractQueryFieldValue(char* someUrl,char* field, char* value);
star297 5:efcfa9e61907 133 char toggleOutput(char* pinName);
star297 5:efcfa9e61907 134
star297 5:efcfa9e61907 135 int main(){
star297 5:efcfa9e61907 136 //configure Pull down on all digital inputs
star297 5:efcfa9e61907 137 digital_in_1.mode(PullDown);
star297 5:efcfa9e61907 138 digital_in_2.mode(PullDown);
star297 5:efcfa9e61907 139 digital_in_3.mode(PullDown);
star297 5:efcfa9e61907 140 digital_in_4.mode(PullDown);
star297 5:efcfa9e61907 141
star297 5:efcfa9e61907 142 //configure baud rate for UART
star297 5:efcfa9e61907 143 pc.baud(115200);
star297 5:efcfa9e61907 144 esp.baud(115200);
star297 5:efcfa9e61907 145
star297 5:efcfa9e61907 146 esp2.attach(&espRxInterrupt,Serial::RxIrq);
star297 5:efcfa9e61907 147
star297 5:efcfa9e61907 148 pc.printf("\033[0m\033[2J\033[HInitialise!\r\n\n\n");
star297 5:efcfa9e61907 149
star297 5:efcfa9e61907 150 esp.printf("AT+RST\r\n");
star297 5:efcfa9e61907 151 while(readEspResponse()!=READY);
star297 5:efcfa9e61907 152 pc.printf("Reset success\n");
star297 5:efcfa9e61907 153 esp.printf("ATE0\r\n");//disable ECHO
star297 5:efcfa9e61907 154 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 155 esp.printf("AT+CWMODE=1\r\n");//enable station mode
star297 5:efcfa9e61907 156 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 157 esp.printf("AT+CIPMUX=1\r\n");// enable multiple connections
star297 5:efcfa9e61907 158 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 159 esp.printf("AT+CIPSERVER=1,80\r\n");//start server at port 80
star297 5:efcfa9e61907 160 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 161 esp.printf("AT+CIPSTO=5\r\n");//Server timeout=5 seconds
star297 5:efcfa9e61907 162 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 163
star297 5:efcfa9e61907 164 pc.printf("Connecting to WiFi..");
star297 5:efcfa9e61907 165 char cmdbuff[60];
star297 5:efcfa9e61907 166 strcpy(cmdbuff, "AT+CWJAP_CUR=\"");
star297 5:efcfa9e61907 167 strcat(cmdbuff, ssid);
star297 5:efcfa9e61907 168 strcat(cmdbuff, "\",\"");
star297 5:efcfa9e61907 169 strcat(cmdbuff, pwd);
star297 5:efcfa9e61907 170 strcat(cmdbuff, "\"\r\n");
star297 5:efcfa9e61907 171 esp.printf(cmdbuff);
star297 5:efcfa9e61907 172 char responseFromEsp;
star297 5:efcfa9e61907 173
star297 5:efcfa9e61907 174 while(1)
star297 5:efcfa9e61907 175 {
star297 5:efcfa9e61907 176 responseFromEsp=readEspResponse();
star297 5:efcfa9e61907 177 wait_us(100000);
star297 5:efcfa9e61907 178 pc.putc('.');
star297 5:efcfa9e61907 179 if(responseFromEsp==OK || responseFromEsp==FAIL)
star297 5:efcfa9e61907 180 break;
star297 5:efcfa9e61907 181 }
star297 5:efcfa9e61907 182 pc.putc('\n');
star297 5:efcfa9e61907 183 if(responseFromEsp==OK)
star297 5:efcfa9e61907 184 {
star297 5:efcfa9e61907 185 pc.printf("Connected to Wifi\n");
star297 5:efcfa9e61907 186 __disable_irq();
star297 5:efcfa9e61907 187 esp.printf("AT+CIFSR\r\n");//check obtained IP
star297 5:efcfa9e61907 188 esp.scanf("+CIFSR:STAIP,\"%[^\"]",&serverIp);
star297 5:efcfa9e61907 189 __enable_irq();
star297 5:efcfa9e61907 190 while(readEspResponse()!=OK);
star297 5:efcfa9e61907 191 }
star297 5:efcfa9e61907 192
star297 5:efcfa9e61907 193 pc.printf("Server IP is %s\n",serverIp);
star297 5:efcfa9e61907 194
star297 5:efcfa9e61907 195 t.start();//start timer
star297 5:efcfa9e61907 196 while(1){
star297 5:efcfa9e61907 197 handleHttpRequests();
star297 5:efcfa9e61907 198 }
star297 5:efcfa9e61907 199 }
star297 5:efcfa9e61907 200
star297 5:efcfa9e61907 201 void espRxInterrupt(){
star297 5:efcfa9e61907 202 if(esp2.readable())
star297 5:efcfa9e61907 203 {
star297 5:efcfa9e61907 204 rxBuff[bufferWritingIndex++]=esp2.getc();
star297 5:efcfa9e61907 205 if(bufferWritingIndex>=BUFFER_SIZE)
star297 5:efcfa9e61907 206 bufferWritingIndex=0;
star297 5:efcfa9e61907 207 }
star297 5:efcfa9e61907 208 }
star297 5:efcfa9e61907 209
star297 5:efcfa9e61907 210 char readEspResponse(){
star297 5:efcfa9e61907 211 char rxByte;
star297 5:efcfa9e61907 212 char espResponse=UNKNOWN;
star297 5:efcfa9e61907 213 static char state=0;
star297 5:efcfa9e61907 214
star297 5:efcfa9e61907 215 while(bufferReadingIndex_espRespSearch!=bufferWritingIndex)
star297 5:efcfa9e61907 216 {
star297 5:efcfa9e61907 217 rxByte=rxBuff[bufferReadingIndex_espRespSearch++];
star297 5:efcfa9e61907 218 //pc.putc(rxByte);
star297 5:efcfa9e61907 219 if(bufferReadingIndex_espRespSearch>=BUFFER_SIZE)
star297 5:efcfa9e61907 220 bufferReadingIndex_espRespSearch=0;
star297 5:efcfa9e61907 221
star297 5:efcfa9e61907 222 switch(state)
star297 5:efcfa9e61907 223 {
star297 5:efcfa9e61907 224 case 0:
star297 5:efcfa9e61907 225 if(rxByte=='O')//it may be OK response
star297 5:efcfa9e61907 226 state=1;
star297 5:efcfa9e61907 227 else if(rxByte=='E')//it may be ERROR response
star297 5:efcfa9e61907 228 state=4;
star297 5:efcfa9e61907 229 else if(rxByte=='F')//it may be FAIL response
star297 5:efcfa9e61907 230 state=10;
star297 5:efcfa9e61907 231 else if(rxByte=='r')//it may be 'ready' response
star297 5:efcfa9e61907 232 state=15;
star297 5:efcfa9e61907 233 else if(rxByte=='>')//it may be Ready To Write TCP '>' response
star297 5:efcfa9e61907 234 state=21;
star297 5:efcfa9e61907 235 break;
star297 5:efcfa9e61907 236
star297 5:efcfa9e61907 237 case 1:
star297 5:efcfa9e61907 238 if(rxByte=='K')
star297 5:efcfa9e61907 239 state=2;
star297 5:efcfa9e61907 240 else state=0;
star297 5:efcfa9e61907 241 break;
star297 5:efcfa9e61907 242
star297 5:efcfa9e61907 243 case 2:
star297 5:efcfa9e61907 244 if(rxByte==0x0d)
star297 5:efcfa9e61907 245 state=3;
star297 5:efcfa9e61907 246 else state=0;
star297 5:efcfa9e61907 247 break;
star297 5:efcfa9e61907 248
star297 5:efcfa9e61907 249 case 3:
star297 5:efcfa9e61907 250 if(rxByte==0x0A)
star297 5:efcfa9e61907 251 espResponse=OK;
star297 5:efcfa9e61907 252 state=0;
star297 5:efcfa9e61907 253 break;
star297 5:efcfa9e61907 254
star297 5:efcfa9e61907 255 case 4://ERROR
star297 5:efcfa9e61907 256 if(rxByte=='R')
star297 5:efcfa9e61907 257 state=5;
star297 5:efcfa9e61907 258 else state=0;
star297 5:efcfa9e61907 259 break;
star297 5:efcfa9e61907 260
star297 5:efcfa9e61907 261 case 5:
star297 5:efcfa9e61907 262 if(rxByte=='R')
star297 5:efcfa9e61907 263 state=6;
star297 5:efcfa9e61907 264 else state=0;
star297 5:efcfa9e61907 265 break;
star297 5:efcfa9e61907 266
star297 5:efcfa9e61907 267 case 6:
star297 5:efcfa9e61907 268 if(rxByte=='O')
star297 5:efcfa9e61907 269 state=7;
star297 5:efcfa9e61907 270 else state=0;
star297 5:efcfa9e61907 271 break;
star297 5:efcfa9e61907 272
star297 5:efcfa9e61907 273
star297 5:efcfa9e61907 274 case 7:
star297 5:efcfa9e61907 275 if(rxByte=='R')
star297 5:efcfa9e61907 276 state=8;
star297 5:efcfa9e61907 277 else state=0;
star297 5:efcfa9e61907 278 break;
star297 5:efcfa9e61907 279
star297 5:efcfa9e61907 280 case 8:
star297 5:efcfa9e61907 281 if(rxByte==0x0d)
star297 5:efcfa9e61907 282 state=9;
star297 5:efcfa9e61907 283 else state=0;
star297 5:efcfa9e61907 284 break;
star297 5:efcfa9e61907 285
star297 5:efcfa9e61907 286 case 9:
star297 5:efcfa9e61907 287 if(rxByte==0x0A)
star297 5:efcfa9e61907 288 espResponse=ERROR;
star297 5:efcfa9e61907 289 state=0;
star297 5:efcfa9e61907 290 break;
star297 5:efcfa9e61907 291
star297 5:efcfa9e61907 292
star297 5:efcfa9e61907 293 case 10://fail
star297 5:efcfa9e61907 294 if(rxByte=='A')
star297 5:efcfa9e61907 295 state=11;
star297 5:efcfa9e61907 296 else state=0;
star297 5:efcfa9e61907 297 break;
star297 5:efcfa9e61907 298
star297 5:efcfa9e61907 299
star297 5:efcfa9e61907 300 case 11:
star297 5:efcfa9e61907 301 if(rxByte=='I')
star297 5:efcfa9e61907 302 state=12;
star297 5:efcfa9e61907 303 else state=0;
star297 5:efcfa9e61907 304 break;
star297 5:efcfa9e61907 305
star297 5:efcfa9e61907 306
star297 5:efcfa9e61907 307 case 12:
star297 5:efcfa9e61907 308 if(rxByte=='L')
star297 5:efcfa9e61907 309 state=13;
star297 5:efcfa9e61907 310 else state=0;
star297 5:efcfa9e61907 311
star297 5:efcfa9e61907 312 break;
star297 5:efcfa9e61907 313
star297 5:efcfa9e61907 314 case 13:
star297 5:efcfa9e61907 315 if(rxByte==0x0d)
star297 5:efcfa9e61907 316 state=14;
star297 5:efcfa9e61907 317 else state=0;
star297 5:efcfa9e61907 318 break;
star297 5:efcfa9e61907 319
star297 5:efcfa9e61907 320 case 14:
star297 5:efcfa9e61907 321 if(rxByte==0x0A)
star297 5:efcfa9e61907 322 espResponse=FAIL;
star297 5:efcfa9e61907 323 state=0;
star297 5:efcfa9e61907 324 break;
star297 5:efcfa9e61907 325
star297 5:efcfa9e61907 326
star297 5:efcfa9e61907 327 case 15://READY
star297 5:efcfa9e61907 328 if(rxByte=='e')
star297 5:efcfa9e61907 329 state=16;
star297 5:efcfa9e61907 330 else state=0;
star297 5:efcfa9e61907 331 break;
star297 5:efcfa9e61907 332
star297 5:efcfa9e61907 333
star297 5:efcfa9e61907 334 case 16:
star297 5:efcfa9e61907 335 if(rxByte=='a')
star297 5:efcfa9e61907 336 state=17;
star297 5:efcfa9e61907 337 else state=0;
star297 5:efcfa9e61907 338 break;
star297 5:efcfa9e61907 339
star297 5:efcfa9e61907 340 case 17:
star297 5:efcfa9e61907 341 if(rxByte=='d')
star297 5:efcfa9e61907 342 state=18;
star297 5:efcfa9e61907 343 else state=0;
star297 5:efcfa9e61907 344 break;
star297 5:efcfa9e61907 345
star297 5:efcfa9e61907 346 case 18:
star297 5:efcfa9e61907 347 if(rxByte=='y')
star297 5:efcfa9e61907 348 state=19;
star297 5:efcfa9e61907 349 else state=0;
star297 5:efcfa9e61907 350 break;
star297 5:efcfa9e61907 351
star297 5:efcfa9e61907 352 case 19:
star297 5:efcfa9e61907 353 if(rxByte==0x0d)
star297 5:efcfa9e61907 354 state=20;
star297 5:efcfa9e61907 355 else state=0;
star297 5:efcfa9e61907 356 break;
star297 5:efcfa9e61907 357
star297 5:efcfa9e61907 358 case 20:
star297 5:efcfa9e61907 359 if(rxByte==0x0A)
star297 5:efcfa9e61907 360 espResponse=READY;
star297 5:efcfa9e61907 361 state=0;
star297 5:efcfa9e61907 362 break;
star297 5:efcfa9e61907 363
star297 5:efcfa9e61907 364 case 21:
star297 5:efcfa9e61907 365 if(rxByte==0x20)
star297 5:efcfa9e61907 366 espResponse=READY_TO_WRITE_TCP;
star297 5:efcfa9e61907 367 state=0;
star297 5:efcfa9e61907 368
star297 5:efcfa9e61907 369 default:
star297 5:efcfa9e61907 370 state=0;
star297 5:efcfa9e61907 371 break;
star297 5:efcfa9e61907 372 }
star297 5:efcfa9e61907 373 }
star297 5:efcfa9e61907 374 return espResponse;
star297 5:efcfa9e61907 375 }
star297 5:efcfa9e61907 376
star297 5:efcfa9e61907 377
star297 5:efcfa9e61907 378
star297 5:efcfa9e61907 379 void handleHttpRequests(){
star297 5:efcfa9e61907 380 char rxByte;
star297 5:efcfa9e61907 381 static char state=0;
star297 5:efcfa9e61907 382
star297 5:efcfa9e61907 383 while(bufferReadingIndex_IpdSearch!=bufferWritingIndex)
star297 5:efcfa9e61907 384 {
star297 5:efcfa9e61907 385 rxByte=rxBuff[bufferReadingIndex_IpdSearch++];
star297 5:efcfa9e61907 386 //pc.putc(rxByte);
star297 5:efcfa9e61907 387 if(bufferReadingIndex_IpdSearch>=BUFFER_SIZE)
star297 5:efcfa9e61907 388 bufferReadingIndex_IpdSearch=0;
star297 5:efcfa9e61907 389 switch(state)
star297 5:efcfa9e61907 390 {
star297 5:efcfa9e61907 391 case 0:
star297 5:efcfa9e61907 392 if(rxByte=='+')
star297 5:efcfa9e61907 393 state=1;
star297 5:efcfa9e61907 394 break;
star297 5:efcfa9e61907 395
star297 5:efcfa9e61907 396 case 1:
star297 5:efcfa9e61907 397 if(rxByte=='I')
star297 5:efcfa9e61907 398 state=2;
star297 5:efcfa9e61907 399 else state=0;
star297 5:efcfa9e61907 400 break;
star297 5:efcfa9e61907 401
star297 5:efcfa9e61907 402 case 2:
star297 5:efcfa9e61907 403 if(rxByte=='P')
star297 5:efcfa9e61907 404 state=3;
star297 5:efcfa9e61907 405 else state=0;
star297 5:efcfa9e61907 406 break;
star297 5:efcfa9e61907 407
star297 5:efcfa9e61907 408 case 3:
star297 5:efcfa9e61907 409 if(rxByte=='D')
star297 5:efcfa9e61907 410 state=4;
star297 5:efcfa9e61907 411 else state=0;
star297 5:efcfa9e61907 412 break;
star297 5:efcfa9e61907 413
star297 5:efcfa9e61907 414 case 4:
star297 5:efcfa9e61907 415 if(rxByte==',')
star297 5:efcfa9e61907 416 state=5;
star297 5:efcfa9e61907 417 else state=0;
star297 5:efcfa9e61907 418 break;
star297 5:efcfa9e61907 419
star297 5:efcfa9e61907 420 case 5:
star297 5:efcfa9e61907 421 if(rxByte!=0x0d)
star297 5:efcfa9e61907 422 {
star297 5:efcfa9e61907 423 reqLineBuff[reqLinBuffIndex++]=rxByte;
star297 5:efcfa9e61907 424 }
star297 5:efcfa9e61907 425 else
star297 5:efcfa9e61907 426 {
star297 5:efcfa9e61907 427 reqLineBuff[reqLinBuffIndex]=0x00;
star297 5:efcfa9e61907 428 bufferReadingIndex_espRespSearch=bufferReadingIndex_IpdSearch;
star297 5:efcfa9e61907 429 processReqLine(reqLineBuff);
star297 5:efcfa9e61907 430 state=0;
star297 5:efcfa9e61907 431 reqLinBuffIndex=0;
star297 5:efcfa9e61907 432 }
star297 5:efcfa9e61907 433 }
star297 5:efcfa9e61907 434 }
star297 5:efcfa9e61907 435 }
star297 5:efcfa9e61907 436
star297 5:efcfa9e61907 437 void processReqLine(char *stringToProcess)
star297 5:efcfa9e61907 438 {
star297 5:efcfa9e61907 439 //0,416:GET /?led=ON HTTP/1.1
star297 5:efcfa9e61907 440 char requestType[6];
star297 5:efcfa9e61907 441 char request[50];
star297 5:efcfa9e61907 442 char linkId;
star297 5:efcfa9e61907 443 int ipdLen;
star297 5:efcfa9e61907 444 sscanf(stringToProcess,"%c,%d:%s %s",&linkId,&ipdLen,requestType,request);
star297 5:efcfa9e61907 445 pc.printf("%s\n",request);
star297 5:efcfa9e61907 446 if(request!=NULL)
star297 5:efcfa9e61907 447 {
star297 5:efcfa9e61907 448 if(strcmp(request,"/")==0 || strcmp(request,get_index_html)==0)
star297 5:efcfa9e61907 449 {
star297 5:efcfa9e61907 450 //send index.html
star297 5:efcfa9e61907 451 sendRequestedPageToClient(linkId,index_html,sizeof(index_html)-1);
star297 5:efcfa9e61907 452 }
star297 5:efcfa9e61907 453 else if(strcmp(request,get_digital_inputs_html)==0)
star297 5:efcfa9e61907 454 {
star297 5:efcfa9e61907 455 sendRequestedPageToClient(linkId,digitalInputs_html,sizeof(digitalInputs_html)-1);
star297 5:efcfa9e61907 456 }
star297 5:efcfa9e61907 457 else if(strcmp(request,get_analog_inputs_html)==0)
star297 5:efcfa9e61907 458 {
star297 5:efcfa9e61907 459 sendRequestedPageToClient(linkId,analog_inputs_html,sizeof(analog_inputs_html)-1);
star297 5:efcfa9e61907 460
star297 5:efcfa9e61907 461 }
star297 5:efcfa9e61907 462 else if(strcmp(request,get_analog_outputs)==0)
star297 5:efcfa9e61907 463 {
star297 5:efcfa9e61907 464 sendRequestedPageToClient(linkId,analog_outputs_html,sizeof(analog_outputs_html)-1);
star297 5:efcfa9e61907 465 }
star297 5:efcfa9e61907 466
star297 5:efcfa9e61907 467 else if(strcmp(request,"/images/logo.jpg")==0)
star297 5:efcfa9e61907 468 {
star297 5:efcfa9e61907 469 sendRequestedPageToClient(linkId,logo_jpg,sizeof(logo_jpg));
star297 5:efcfa9e61907 470 }
star297 5:efcfa9e61907 471 else if(strcmp(request,"/favicon.ico")==0)
star297 5:efcfa9e61907 472 {
star297 5:efcfa9e61907 473 sendRequestedPageToClient(linkId,favicon_ico,sizeof(favicon_ico));
star297 5:efcfa9e61907 474 }
star297 5:efcfa9e61907 475 else if(strcmp(request,"/css/style.css")==0)
star297 5:efcfa9e61907 476 {
star297 5:efcfa9e61907 477 sendRequestedPageToClient(linkId,style_css,sizeof(style_css)-1);
star297 5:efcfa9e61907 478 }
star297 5:efcfa9e61907 479 else if(strncmp(request,get_Toggle_Output,strlen(get_Toggle_Output))==0)
star297 5:efcfa9e61907 480 {
star297 5:efcfa9e61907 481 //check query field and value, and toggle appropriate Output
star297 5:efcfa9e61907 482 char field[10],value[10];
star297 5:efcfa9e61907 483 extractQueryFieldValue(request,field,value);
star297 5:efcfa9e61907 484 if(value!=NULL)
star297 5:efcfa9e61907 485 {
star297 5:efcfa9e61907 486 char newPinState=toggleOutput(value);
star297 5:efcfa9e61907 487 char responsePacket[100];
star297 5:efcfa9e61907 488 sprintf(responsePacket,"%s%c",textPlainHeader,newPinState+48);
star297 5:efcfa9e61907 489 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 490 }
star297 5:efcfa9e61907 491 }
star297 5:efcfa9e61907 492 else if(strcmp(request,get_digital_output_status)==0)
star297 5:efcfa9e61907 493 {
star297 5:efcfa9e61907 494 //"{\"digital_outputs\":{\"dout1\":1,\"dout2\":0,\"dout3\":1,\"dout4\":1}}"
star297 5:efcfa9e61907 495 char responsePacket[200];
star297 5:efcfa9e61907 496 sprintf(responsePacket,"%s{\"digital_outputs\":{\"dout1\":%c,\
star297 5:efcfa9e61907 497 \"dout2\":%c,\"dout3\":%c,\"dout4\":%c}}",jsonHeader,(!digital_out_1)+48,
star297 5:efcfa9e61907 498 (!digital_out_2)+48,(!digital_out_3)+48,(!digital_out_4)+48);
star297 5:efcfa9e61907 499 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 500 }
star297 5:efcfa9e61907 501 else if(strcmp(request,get_digital_input_status)==0)
star297 5:efcfa9e61907 502 {
star297 5:efcfa9e61907 503 char responsePacket[200];
star297 5:efcfa9e61907 504 sprintf(responsePacket,"%s{\"digital_inputs\":{\"din1\":%c,\
star297 5:efcfa9e61907 505 \"din2\":%c,\"din3\":%c,\"din4\":%c}}",jsonHeader,(digital_in_1)+48,
star297 5:efcfa9e61907 506 (digital_in_2)+48,(digital_in_3)+48,(digital_in_4)+48);
star297 5:efcfa9e61907 507 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 508
star297 5:efcfa9e61907 509 }
star297 5:efcfa9e61907 510 else if(strncmp(request,get_analog_output_update,strlen(get_analog_output_update))==0)
star297 5:efcfa9e61907 511 {
star297 5:efcfa9e61907 512 char field[10],value[10];
star297 5:efcfa9e61907 513 extractQueryFieldValue(request,field,value);
star297 5:efcfa9e61907 514 if(value!=NULL)
star297 5:efcfa9e61907 515 {
star297 5:efcfa9e61907 516 analog_out_1=atof(value)/12.0;
star297 5:efcfa9e61907 517 char responsePacket[100];
star297 5:efcfa9e61907 518 sprintf(responsePacket,"%s%.2f",textPlainHeader,analog_out_1.read()*12.0);
star297 5:efcfa9e61907 519 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 520 }
star297 5:efcfa9e61907 521 }
star297 5:efcfa9e61907 522 else if(strcmp(request,get_analog_outputs_status)==0)
star297 5:efcfa9e61907 523 {
star297 5:efcfa9e61907 524 char responsePacket[100];
star297 5:efcfa9e61907 525 sprintf(responsePacket,"%s%.2f",textPlainHeader,analog_out_1.read()*12.0);
star297 5:efcfa9e61907 526 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 527 }
star297 5:efcfa9e61907 528 else if(strcmp(request,get_analog_inputs_status)==0)
star297 5:efcfa9e61907 529 {
star297 5:efcfa9e61907 530 char responsePacket[100];
star297 5:efcfa9e61907 531 sprintf(responsePacket,"%s%.2f",textPlainHeader,((tempSensor*3.3)-0.500)*100.0);
star297 5:efcfa9e61907 532 sendRequestedPageToClient(linkId,responsePacket,strlen(responsePacket));
star297 5:efcfa9e61907 533 }
star297 5:efcfa9e61907 534 else
star297 5:efcfa9e61907 535 {
star297 5:efcfa9e61907 536 sendRequestedPageToClient(linkId,not_found_text,sizeof(not_found_text)-1);
star297 5:efcfa9e61907 537 //send page not found message
star297 5:efcfa9e61907 538 }
star297 5:efcfa9e61907 539 }
star297 5:efcfa9e61907 540 }
star297 5:efcfa9e61907 541
star297 5:efcfa9e61907 542
star297 5:efcfa9e61907 543 void sendRequestedPageToClient(char id, const char* page,unsigned int len)
star297 5:efcfa9e61907 544 {
star297 5:efcfa9e61907 545 char atCommandArray[50];
star297 5:efcfa9e61907 546 unsigned int lenOfPacketToTx;
star297 5:efcfa9e61907 547 unsigned int pageToSendAddress=0;
star297 5:efcfa9e61907 548 char tempEspStatus;
star297 5:efcfa9e61907 549 while(len>0)
star297 5:efcfa9e61907 550 {
star297 5:efcfa9e61907 551 if(len>2048){
star297 5:efcfa9e61907 552 len-=2048;
star297 5:efcfa9e61907 553 lenOfPacketToTx=2048;
star297 5:efcfa9e61907 554 }
star297 5:efcfa9e61907 555 else{
star297 5:efcfa9e61907 556 lenOfPacketToTx=len;
star297 5:efcfa9e61907 557 len=0;
star297 5:efcfa9e61907 558 }
star297 5:efcfa9e61907 559
star297 5:efcfa9e61907 560 sprintf(atCommandArray,"AT+CIPSEND=%c,%d\r\n",id,lenOfPacketToTx);
star297 5:efcfa9e61907 561 bufferReadingIndex_espRespSearch=bufferWritingIndex;
star297 5:efcfa9e61907 562 esp.printf(atCommandArray);
star297 5:efcfa9e61907 563
star297 5:efcfa9e61907 564 while(1)
star297 5:efcfa9e61907 565 {
star297 5:efcfa9e61907 566 tempEspStatus=readEspResponse();
star297 5:efcfa9e61907 567 if(tempEspStatus==READY_TO_WRITE_TCP||tempEspStatus==ERROR ||tempEspStatus==FAIL)
star297 5:efcfa9e61907 568 break;
star297 5:efcfa9e61907 569 }
star297 5:efcfa9e61907 570 //now send page
star297 5:efcfa9e61907 571 if(tempEspStatus==READY_TO_WRITE_TCP)
star297 5:efcfa9e61907 572 {
star297 5:efcfa9e61907 573 sendMemArrayToEsp(page+pageToSendAddress,lenOfPacketToTx);
star297 5:efcfa9e61907 574 do{
star297 5:efcfa9e61907 575 tempEspStatus=readEspResponse();
star297 5:efcfa9e61907 576 }
star297 5:efcfa9e61907 577 while(tempEspStatus==UNKNOWN);
star297 5:efcfa9e61907 578 if(tempEspStatus!=OK)//link broken, don't send more data to this link.
star297 5:efcfa9e61907 579 break;
star297 5:efcfa9e61907 580
star297 5:efcfa9e61907 581 pageToSendAddress+=lenOfPacketToTx;
star297 5:efcfa9e61907 582 }
star297 5:efcfa9e61907 583 else
star297 5:efcfa9e61907 584 break;
star297 5:efcfa9e61907 585 }
star297 5:efcfa9e61907 586 if(tempEspStatus==OK)
star297 5:efcfa9e61907 587 {
star297 5:efcfa9e61907 588 sprintf(atCommandArray,"AT+CIPCLOSE=%c\r\n",id);
star297 5:efcfa9e61907 589 esp.printf(atCommandArray);
star297 5:efcfa9e61907 590 while(readEspResponse()==UNKNOWN);
star297 5:efcfa9e61907 591 }
star297 5:efcfa9e61907 592 }
star297 5:efcfa9e61907 593
star297 5:efcfa9e61907 594 void sendMemArrayToEsp(const char*str,unsigned int len)
star297 5:efcfa9e61907 595 {
star297 5:efcfa9e61907 596 while(len--)
star297 5:efcfa9e61907 597 esp.putc(*str++);
star297 5:efcfa9e61907 598 }
star297 5:efcfa9e61907 599
star297 5:efcfa9e61907 600 void extractQueryFieldValue(char* someUrl,char* field, char* value)
star297 5:efcfa9e61907 601 {
star297 5:efcfa9e61907 602 sscanf(someUrl,"%*[^?]%*c%[^=]%*c%s",field,value);
star297 5:efcfa9e61907 603 }
star297 5:efcfa9e61907 604
star297 5:efcfa9e61907 605 char toggleOutput(char* pinName)
star297 5:efcfa9e61907 606 {
star297 5:efcfa9e61907 607 if(strcmp(pinName,"dout1")==0)
star297 5:efcfa9e61907 608 {
star297 5:efcfa9e61907 609 digital_out_1=!digital_out_1;
star297 5:efcfa9e61907 610 return !digital_out_1;
star297 5:efcfa9e61907 611 }
star297 5:efcfa9e61907 612 else if(strcmp(pinName,"dout2")==0)
star297 5:efcfa9e61907 613 {
star297 5:efcfa9e61907 614 digital_out_2=!digital_out_2;
star297 5:efcfa9e61907 615 return !digital_out_2;
star297 5:efcfa9e61907 616 }
star297 5:efcfa9e61907 617 else if(strcmp(pinName,"dout3")==0)
star297 5:efcfa9e61907 618 {
star297 5:efcfa9e61907 619 digital_out_3=!digital_out_3;
star297 5:efcfa9e61907 620 return !digital_out_3;
star297 5:efcfa9e61907 621 }
star297 5:efcfa9e61907 622 else if(strcmp(pinName,"dout4")==0)
star297 5:efcfa9e61907 623 {
star297 5:efcfa9e61907 624 digital_out_4=!digital_out_4;
star297 5:efcfa9e61907 625 return !digital_out_4;
star297 5:efcfa9e61907 626 }
star297 5:efcfa9e61907 627 else return 2;//error
star297 5:efcfa9e61907 628
star297 5:efcfa9e61907 629 }
star297 5:efcfa9e61907 630
star297 5:efcfa9e61907 631