gamanox · June 9, 2020 00:00
diff --git a/servo.ino b/servo.ino
 /*********
  Rui Santos
  Complete project details at https://randomnerdtutorials.com  
 *********/

 #include <WiFi.h>
 #include <Servo.h>
 #include "Adafruit_MQTT.h"
 #include "Adafruit_MQTT_Client.h"

 Servo myservo;  // create servo object to control a servo
 // twelve servo objects can be created on most boards

 // GPIO the servo is attached to
 static const int servoPin = 13;

 // Replace with your network credentials
 const char* ssid     = "Victory-House";
 const char* password = "p4r4n64r1";
 #define AIO_SERVER      "io.adafruit.com"
 #define AIO_SERVERPORT  1883
 #define AIO_USERNAME    "gamanox"
 #define AIO_KEY         "aio_ogjf67hqqZJI8Gl9PnsAyXrjRSuu"

 // Set web server port number to 80
 WiFiServer server(80);
 WiFiClient client;
 Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_USERNAME, AIO_KEY);
 Adafruit_MQTT_Subscribe boiler_control = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/boiler-control");

 // Variable to store the HTTP request
 String header;

 // Decode HTTP GET value
 String valueString = String(5);
 int pos1 = 0;
 int pos2 = 0;

 void setup() {
  Serial.begin(115200);

  myservo.attach(servoPin);  // attaches the servo on the servoPin to the servo object

  // Connect to Wi-Fi network with SSID and password
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  // Print local IP address and start web server
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  server.begin();
  mqtt.subscribe(&boiler_control);
 }

 void loop(){
    // Listen for incoming clients
  MQTT_connect();
  Adafruit_MQTT_Subscribe *subscription;
  while ((subscription = mqtt.readSubscription(5000))) {
    if (subscription == &boiler_control) {
      Serial.println("Got: ");
      Serial.println((char *)boiler_control.lastread);
       if (!strcmp((char*)boiler_control.lastread, "ON"))
 {
         myservo.write(180);
              Serial.println("180"); 
      }
      else
      {
         myservo.write(0);
              Serial.println("0"); 
      }
    }
  }
  if(! mqtt.ping()) {
    mqtt.disconnect();
  }
 //  if (client) {                             // If a new client connects,
 //    Serial.println("New Client.");          // print a message out in the serial port
 //    String currentLine = "";                // make a String to hold incoming data from the client
 //    while (client.connected()) {            // loop while the client's connected
 //      if (client.available()) {             // if there's bytes to read from the client,
 //        char c = client.read();             // read a byte, then
 //        Serial.write(c);                    // print it out the serial monitor
 //        header += c;
 //        if (c == '\n') {                    // if the byte is a newline character
 //          // if the current line is blank, you got two newline characters in a row.
 //          // that's the end of the client HTTP request, so send a response:
 //          if (currentLine.length() == 0) {
 //            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
 //            // and a content-type so the client knows what's coming, then a blank line:
 //            client.println("HTTP/1.1 200 OK");
 //            client.println("Content-type:text/html");
 //            client.println("Connection: close");
 //            client.println();
 //
 //            // Display the HTML web page
 //            client.println("<!DOCTYPE html><html>");
 //            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
 //            client.println("<link rel=\"icon\" href=\"data:,\">");
 //            // CSS to style the on/off buttons 
 //            // Feel free to change the background-color and font-size attributes to fit your preferences
 //            client.println("<style>body { text-align: center; font-family: \"Trebuchet MS\", Arial; margin-left:auto; margin-right:auto;}");
 //            client.println(".slider { width: 300px; }</style>");
 //            client.println("<script src=\"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js\"></script>");
 //                     
 //            // Web Page
 //            client.println("</head><body><h1>ESP32 with Servo</h1>");
 //            client.println("<p>Position: <span id=\"servoPos\"></span></p>");          
 //            client.println("<input type=\"range\" min=\"0\" max=\"180\" class=\"slider\" id=\"servoSlider\" onchange=\"servo(this.value)\" value=\""+valueString+"\"/>");
 //            
 //            client.println("<script>var slider = document.getElementById(\"servoSlider\");");
 //            client.println("var servoP = document.getElementById(\"servoPos\"); servoP.innerHTML = slider.value;");
 //            client.println("slider.oninput = function() { slider.value = this.value; servoP.innerHTML = this.value; }");
 //            client.println("$.ajaxSetup({timeout:1000}); function servo(pos) { ");
 //            client.println("$.get(\"/?value=\" + pos + \"&\"); {Connection: close};}</script>");
 //           
 //            client.println("</body></html>");     
 //            
 //            //GET /?value=180& HTTP/1.1
 //            if(header.indexOf("GET /?value=")>=0) {
 //              pos1 = header.indexOf('=');
 //              pos2 = header.indexOf('&');
 //              valueString = header.substring(pos1+1, pos2);
 //              
 //              //Rotate the servo
 //              myservo.write(valueString.toInt());
 //              Serial.println(valueString); 
 //            }         
 //            // The HTTP response ends with another blank line
 //            client.println();
 //            // Break out of the while loop
 //            break;
 //          } else { // if you got a newline, then clear currentLine
 //            currentLine = "";
 //          }
 //        } else if (c != '\r') {  // if you got anything else but a carriage return character,
 //          currentLine += c;      // add it to the end of the currentLine
 //        }
 //      }
 //    }
 //    // Clear the header variable
 //    header = "";
 //    // Close the connection
 //    client.stop();
 //    Serial.println("Client disconnected.");
 //    Serial.println("");
 //  }
 }

 void MQTT_connect() {
  int8_t ret;

  // Stop if already connected.
  if (mqtt.connected()) {
    return;
  }

  Serial.print("Connecting to MQTT... ");

  while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
       Serial.println(mqtt.connectErrorString(ret));
       Serial.println("Retrying MQTT connection in 5 seconds...");
       mqtt.disconnect();
       delay(5000);  // wait 5 seconds
  }
  Serial.println("MQTT Connected!");
 }
	/*********
	Rui Santos
	Complete project details at https://randomnerdtutorials.com
	*********/

	#include <WiFi.h>
	#include <Servo.h>
	#include "Adafruit_MQTT.h"
	#include "Adafruit_MQTT_Client.h"

	Servo myservo; // create servo object to control a servo
	// twelve servo objects can be created on most boards

	// GPIO the servo is attached to
	static const int servoPin = 13;

	// Replace with your network credentials
	const char* ssid = "Victory-House";
	const char* password = "p4r4n64r1";
	#define AIO_SERVER "io.adafruit.com"
	#define AIO_SERVERPORT 1883
	#define AIO_USERNAME "gamanox"
	#define AIO_KEY "aio_ogjf67hqqZJI8Gl9PnsAyXrjRSuu"

	// Set web server port number to 80
	WiFiServer server(80);
	WiFiClient client;
	Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_USERNAME, AIO_KEY);
	Adafruit_MQTT_Subscribe boiler_control = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/boiler-control");

	// Variable to store the HTTP request
	String header;

	// Decode HTTP GET value
	String valueString = String(5);
	int pos1 = 0;
	int pos2 = 0;

	void setup() {
	Serial.begin(115200);

	myservo.attach(servoPin); // attaches the servo on the servoPin to the servo object

	// Connect to Wi-Fi network with SSID and password
	Serial.print("Connecting to ");
	Serial.println(ssid);
	WiFi.begin(ssid, password);
	while (WiFi.status() != WL_CONNECTED) {
	delay(500);
	Serial.print(".");
	}
	// Print local IP address and start web server
	Serial.println("");
	Serial.println("WiFi connected.");
	Serial.println("IP address: ");
	Serial.println(WiFi.localIP());
	server.begin();
	mqtt.subscribe(&boiler_control);
	}

	void loop(){
	// Listen for incoming clients
	MQTT_connect();
	Adafruit_MQTT_Subscribe *subscription;
	while ((subscription = mqtt.readSubscription(5000))) {
	if (subscription == &boiler_control) {
	Serial.println("Got: ");
	Serial.println((char *)boiler_control.lastread);
	if (!strcmp((char*)boiler_control.lastread, "ON"))
	{
	myservo.write(180);
	Serial.println("180");
	}
	else
	{
	myservo.write(0);
	Serial.println("0");
	}
	}
	}
	if(! mqtt.ping()) {
	mqtt.disconnect();
	}
	// if (client) { // If a new client connects,
	// Serial.println("New Client."); // print a message out in the serial port
	// String currentLine = ""; // make a String to hold incoming data from the client
	// while (client.connected()) { // loop while the client's connected
	// if (client.available()) { // if there's bytes to read from the client,
	// char c = client.read(); // read a byte, then
	// Serial.write(c); // print it out the serial monitor
	// header += c;
	// if (c == '\n') { // if the byte is a newline character
	// // if the current line is blank, you got two newline characters in a row.
	// // that's the end of the client HTTP request, so send a response:
	// if (currentLine.length() == 0) {
	// // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
	// // and a content-type so the client knows what's coming, then a blank line:
	// client.println("HTTP/1.1 200 OK");
	// client.println("Content-type:text/html");
	// client.println("Connection: close");
	// client.println();
	//
	// // Display the HTML web page
	// client.println("<!DOCTYPE html><html>");
	// client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
	// client.println("<link rel=\"icon\" href=\"data:,\">");
	// // CSS to style the on/off buttons
	// // Feel free to change the background-color and font-size attributes to fit your preferences
	// client.println("<style>body { text-align: center; font-family: \"Trebuchet MS\", Arial; margin-left:auto; margin-right:auto;}");
	// client.println(".slider { width: 300px; }</style>");
	// client.println("<script src=\"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js\"></script>");
	//
	// // Web Page
	// client.println("</head><body><h1>ESP32 with Servo</h1>");
	// client.println("<p>Position: <span id=\"servoPos\"></span></p>");
	// client.println("<input type=\"range\" min=\"0\" max=\"180\" class=\"slider\" id=\"servoSlider\" onchange=\"servo(this.value)\" value=\""+valueString+"\"/>");
	//
	// client.println("<script>var slider = document.getElementById(\"servoSlider\");");
	// client.println("var servoP = document.getElementById(\"servoPos\"); servoP.innerHTML = slider.value;");
	// client.println("slider.oninput = function() { slider.value = this.value; servoP.innerHTML = this.value; }");
	// client.println("$.ajaxSetup({timeout:1000}); function servo(pos) { ");
	// client.println("$.get(\"/?value=\" + pos + \"&\"); {Connection: close};}</script>");
	//
	// client.println("</body></html>");
	//
	// //GET /?value=180& HTTP/1.1
	// if(header.indexOf("GET /?value=")>=0) {
	// pos1 = header.indexOf('=');
	// pos2 = header.indexOf('&');
	// valueString = header.substring(pos1+1, pos2);
	//
	// //Rotate the servo
	// myservo.write(valueString.toInt());
	// Serial.println(valueString);
	// }
	// // The HTTP response ends with another blank line
	// client.println();
	// // Break out of the while loop
	// break;
	// } else { // if you got a newline, then clear currentLine
	// currentLine = "";
	// }
	// } else if (c != '\r') { // if you got anything else but a carriage return character,
	// currentLine += c; // add it to the end of the currentLine
	// }
	// }
	// }
	// // Clear the header variable
	// header = "";
	// // Close the connection
	// client.stop();
	// Serial.println("Client disconnected.");
	// Serial.println("");
	// }
	}

	void MQTT_connect() {
	int8_t ret;

	// Stop if already connected.
	if (mqtt.connected()) {
	return;
	}

	Serial.print("Connecting to MQTT... ");

	while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
	Serial.println(mqtt.connectErrorString(ret));
	Serial.println("Retrying MQTT connection in 5 seconds...");
	mqtt.disconnect();
	delay(5000); // wait 5 seconds
	}
	Serial.println("MQTT Connected!");
	}