YhanChristian · May 8, 2020 18:32
diff --git a/leitura-sensor-webserver.ino b/leitura-sensor-webserver.ino
 
 /* WebServer com NodeMCU e AJAX
   Utilizado: NodeMCU, sensor de tempratura LM35
   Autor: Yhan Christian Souza Silva - Data: 21/07/2018
 */

 // -- Bibliotecas Auxiliares --

 #include <ESP8266WiFi.h>
 #include <ESP8266WebServer.h>

 // -- Definições de Hardware --

 #define tempSensor A0


 // -- Definições de rede --

 const char* ssid = "xxxx";
 const char* password = "xxxx";

 // -- Escutar porta 80 --

 ESP8266WebServer server(80);


 // -- Variáveis e constantes --

 String webSite, javaScript, XML;


 // -- Escopo funções auxiliares --

 void connectToWiFi();
 void buildWebSite();
 void buildJavaScript();
 void buildXML();
 float getTemp();
 void handleWebSite();
 void handleXML();


 // -- Setup --

 void setup() {
  Serial.begin(115200);
  connectToWiFi();
  delay(1000);
 }

 // -- Loop --

 void loop() {
  server.handleClient();
 }

 // -- Funções Auxiliares --

 void connectToWiFi() {
  Serial.println("Conectando a rede: ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  WiFi.mode(WIFI_STA);
  Serial.println("");
  Serial.println("Conectado!");
  Serial.print("IP: ");
  Serial.println(WiFi.localIP());
  server.on("/", handleWebSite);
  server.on("/xml", handleXML);
  server.begin();
 }

 void buildWebSite() {
  buildJavaScript();
  webSite = "<!DOCTYPE HTML>\n";
  webSite += javaScript;
  webSite += "<BODY onload='process()'>\n";
  webSite += "<BR> WebServer dinâmico com Ajax<BR>\n";
  webSite += "Temperatura = <A id='runtime'></A> \n";
  webSite += "</BODY>\n";
  webSite += "</HTML>\n";
 }

 void buildJavaScript() {
  javaScript += "<SCRIPT>\n";
  javaScript += "var xmlHttp = createXmlHttpObject();\n";

  // function createXmlHttpObject()

  javaScript += "function createXmlHttpObject() {\n";
  javaScript += "if(window.XMLHttpRequest) {\n";
  javaScript += "   xmlHttp = new XMLHttpRequest();\n";
  javaScript += "} else {\n";
  javaScript += "   xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');\n";
  javaScript += "}\n";
  javaScript += "return xmlHttp;\n";
  javaScript += "}\n";

  // function process()

  javaScript += "function process() {\n";
  javaScript += " if(xmlHttp.readyState == 0 || xmlHttp.readyState == 4) {\n";
  javaScript += "   xmlHttp.open('PUT','xml',true);\n";
  javaScript += "   xmlHttp.onreadystatechange = handleServerResponse;\n";
  javaScript += "   xmlHttp.send(null);\n";
  javaScript += " }\n";
  javaScript += " setTimeout('process()',1000);\n";
  javaScript += "}\n";

  // function handleServerResponse()

  javaScript += "function handleServerResponse(){\n";
  javaScript += " if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {\n";
  javaScript += "   xmlResponse=xmlHttp.responseXML;\n";
  javaScript += "   xmldoc = xmlResponse.getElementsByTagName('response');\n";
  javaScript += "   message = xmldoc[0].firstChild.nodeValue;\n";
  javaScript += "   document.getElementById('runtime').innerHTML=message;\n";
  javaScript += " }\n";
  javaScript += "}\n";
  javaScript += "</SCRIPT>\n";
 }

 void buildXML() {
  XML = "<?xml version='1.0'?>";
  XML += "<response>";
  XML +=  getTemp();
  XML += "</response>";
 }

 float getTemp() {
  float readTemp = (analogRead(tempSensor) * 330.0f) / 1023.0f;
  return readTemp;
 }

 void handleWebSite() {
  buildWebSite();
  server.send(200, "text/html", webSite);
 }

 void handleXML() {
  buildXML();
  server.send(200, "text/xml", XML);
 }

	/* WebServer com NodeMCU e AJAX
	Utilizado: NodeMCU, sensor de tempratura LM35
	Autor: Yhan Christian Souza Silva - Data: 21/07/2018
	*/

	// -- Bibliotecas Auxiliares --

	#include <ESP8266WiFi.h>
	#include <ESP8266WebServer.h>

	// -- Definições de Hardware --

	#define tempSensor A0


	// -- Definições de rede --

	const char* ssid = "xxxx";
	const char* password = "xxxx";

	// -- Escutar porta 80 --

	ESP8266WebServer server(80);


	// -- Variáveis e constantes --

	String webSite, javaScript, XML;


	// -- Escopo funções auxiliares --

	void connectToWiFi();
	void buildWebSite();
	void buildJavaScript();
	void buildXML();
	float getTemp();
	void handleWebSite();
	void handleXML();


	// -- Setup --

	void setup() {
	Serial.begin(115200);
	connectToWiFi();
	delay(1000);
	}

	// -- Loop --

	void loop() {
	server.handleClient();
	}

	// -- Funções Auxiliares --

	void connectToWiFi() {
	Serial.println("Conectando a rede: ");
	Serial.println(ssid);
	WiFi.begin(ssid, password);
	while (WiFi.status() != WL_CONNECTED) {
	delay(500);
	Serial.print(".");
	}
	WiFi.mode(WIFI_STA);
	Serial.println("");
	Serial.println("Conectado!");
	Serial.print("IP: ");
	Serial.println(WiFi.localIP());
	server.on("/", handleWebSite);
	server.on("/xml", handleXML);
	server.begin();
	}

	void buildWebSite() {
	buildJavaScript();
	webSite = "<!DOCTYPE HTML>\n";
	webSite += javaScript;
	webSite += "<BODY onload='process()'>\n";
	webSite += "<BR> WebServer dinâmico com Ajax<BR>\n";
	webSite += "Temperatura = <A id='runtime'></A> \n";
	webSite += "</BODY>\n";
	webSite += "</HTML>\n";
	}

	void buildJavaScript() {
	javaScript += "<SCRIPT>\n";
	javaScript += "var xmlHttp = createXmlHttpObject();\n";

	// function createXmlHttpObject()

	javaScript += "function createXmlHttpObject() {\n";
	javaScript += "if(window.XMLHttpRequest) {\n";
	javaScript += " xmlHttp = new XMLHttpRequest();\n";
	javaScript += "} else {\n";
	javaScript += " xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');\n";
	javaScript += "}\n";
	javaScript += "return xmlHttp;\n";
	javaScript += "}\n";

	// function process()

	javaScript += "function process() {\n";
	javaScript += " if(xmlHttp.readyState == 0 \|\| xmlHttp.readyState == 4) {\n";
	javaScript += " xmlHttp.open('PUT','xml',true);\n";
	javaScript += " xmlHttp.onreadystatechange = handleServerResponse;\n";
	javaScript += " xmlHttp.send(null);\n";
	javaScript += " }\n";
	javaScript += " setTimeout('process()',1000);\n";
	javaScript += "}\n";

	// function handleServerResponse()

	javaScript += "function handleServerResponse(){\n";
	javaScript += " if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {\n";
	javaScript += " xmlResponse=xmlHttp.responseXML;\n";
	javaScript += " xmldoc = xmlResponse.getElementsByTagName('response');\n";
	javaScript += " message = xmldoc[0].firstChild.nodeValue;\n";
	javaScript += " document.getElementById('runtime').innerHTML=message;\n";
	javaScript += " }\n";
	javaScript += "}\n";
	javaScript += "</SCRIPT>\n";
	}

	void buildXML() {
	XML = "<?xml version='1.0'?>";
	XML += "<response>";
	XML += getTemp();
	XML += "</response>";
	}

	float getTemp() {
	float readTemp = (analogRead(tempSensor) * 330.0f) / 1023.0f;
	return readTemp;
	}

	void handleWebSite() {
	buildWebSite();
	server.send(200, "text/html", webSite);
	}

	void handleXML() {
	buildXML();
	server.send(200, "text/xml", XML);
	}