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[Arduino IDE demo source code for KC868-A16]--#09-KC868-A16_Web_server_code
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[Arduino IDE demo source code for KC868-A16]--#09-KC868-A16_Web_server_code

.zip   KC868-A16_Web_Server.zip (Size: 464.75 KB / Downloads: 423)

   

Code:
/***********************************************************
* Create Your own WebServer for KC868-A16 Smart Controller*
* https://www.kincony.com                                **
***********************************************************/

// Load Wi-Fi library
#include <WiFi.h>
#include "PCF8574.h"
#include <WiFiManager.h>
#define TRIGGER_PIN 0   // reset wifi button
WiFiManager wm;
int timeout =20; // seconds to run for
// Replace with your network credentials
/*******config the WIFI by phone*****************/

/* const char* ssid     = "xxx"; //your router's ssid
const char* password = "yyy"; //your router's password*/
/*******************************************************/

// Set web server port number to 80
WiFiServer server(80);

// Variable to store the HTTP request
String header;

// Current time
unsigned long currentTime = millis();
// Previous time
unsigned long previousTime = 0;
// Define timeout time in milliseconds (example: 2000ms = 2s)
const long timeoutTime = 2000;

int flag_read_di=0;

TwoWire I2Cone = TwoWire(0);
TwoWire I2Ctwo = TwoWire(1);

/*******Check the I2C address **********/
/********If your board was purchased earlier, use an older I2C**/

/********OLD A16 Board I2C address */
/*
PCF8574 pcf8574_I1(&I2Cone,0x22,4,5);
PCF8574 pcf8574_I2(&I2Cone,0x21,4,5);
PCF8574 pcf8574_R1(&I2Cone,0x24,4,5);
PCF8574 pcf8574_R2(&I2Cone,0x25,4,5);*/

// Set A16 digital input i2c address
/********NEW A16 Board I2C address */
PCF8574 pcf8574_I1(&I2Cone,0x3A,4,5);
PCF8574 pcf8574_I2(&I2Cone,0x39,4,5);
PCF8574 pcf8574_R1(&I2Cone,0x3C,4,5);
PCF8574 pcf8574_R2(&I2Cone,0x3D,4,5);

String relaystate[16]={"relay1state","relay2state","relay3state","relay4state",
                       "relay5state","relay6state","relay7state","relay8state",
                       "relay9state","relay10state","relay11state","relay12state",
                       "relay13state","relay14state","relay15state","relay16state"
                      };
String relay1state = "off";// state of relay1
String relay2state = "off";// state of relay2
String relay3state = "off";// state of relay3
String relay4state = "off";// state of relay4
String relay5state = "off";// state of relay5
String relay6state = "off";// state of relay6
String relay7state = "off";// state of relay7
String relay8state = "off";// state of relay8

String relay9state = "off";// state of relay9
String relay10state = "off";// state of relay10
String relay11state = "off";// state of relay11
String relay12state = "off";// state of relay12
String relay13state = "off";// state of relay13
String relay14state = "off";// state of relay14
String relay15state = "off";// state of relay15
String relay16state = "off";// state of relay16


void setup() {

  pinMode(TRIGGER_PIN, INPUT_PULLUP); // wifi reset button
  Serial.begin(115200);

  // Set PCF8574 pinMode to OUTPUT
  for(int i=0;i<=7;i++)
  {
     pcf8574_R1.pinMode(i, OUTPUT);
     pcf8574_R2.pinMode(i, OUTPUT);
  }
 
  pcf8574_R1.begin();
  pcf8574_R2.begin();

 
  for(int i=0;i<=7;i++)
  {
     pcf8574_I1.pinMode(i, INPUT);
     pcf8574_I2.pinMode(i, INPUT);
  }

    pcf8574_I1.begin();
    pcf8574_I2.begin();
     

  for(int i=0;i<=7;i++)
  {
     pcf8574_R1.digitalWrite(i, HIGH);
     pcf8574_R2.digitalWrite(i, HIGH);
  }
    WiFi.mode(WIFI_STA);
    wm.setConfigPortalTimeout(timeout);
     bool res;
       res = wm.autoConnect("KC868-A16-AP"); // anonymous ap
    if(!res) {
        Serial.println("Failed to connect");
    }
    else {
        //if you get here you have connected to the WiFi   
        Serial.println("connected...yeey :)");
    }   
 
  // Print local IP address and start web server
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  server.begin();

}

void loop(){
  WiFiClient client = server.available();   // Listen for incoming clients

  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
    currentTime = millis();
    previousTime = currentTime;
    while (client.connected() && currentTime - previousTime <= timeoutTime) { // loop while the client's connected
      currentTime = millis();         
      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();
           
            // turns 16 relays on and off
            if (header.indexOf("GET /1/on") >= 0) {relay1state = "on";pcf8574_R1.digitalWrite(P0, LOW);}
            else if (header.indexOf("GET /1/off") >= 0) {relay1state = "off";pcf8574_R1.digitalWrite(P0, HIGH);}
            else if (header.indexOf("GET /2/on") >= 0)  {relay2state = "on";pcf8574_R1.digitalWrite(P1, LOW);}
            else if (header.indexOf("GET /2/off") >= 0) {relay2state = "off";pcf8574_R1.digitalWrite(P1, HIGH);}
            else if (header.indexOf("GET /3/on") >= 0)  {relay3state = "on";pcf8574_R1.digitalWrite(P2, LOW);}
            else if (header.indexOf("GET /3/off") >= 0) {relay3state = "off";pcf8574_R1.digitalWrite(P2, HIGH);}         
            else if (header.indexOf("GET /4/on") >= 0)  {relay4state = "on";pcf8574_R1.digitalWrite(P3, LOW);}
            else if (header.indexOf("GET /4/off") >= 0) {relay4state = "off";pcf8574_R1.digitalWrite(P3, HIGH);}
            else if (header.indexOf("GET /5/on") >= 0)  {relay5state = "on";pcf8574_R1.digitalWrite(P4, LOW);}
            else if (header.indexOf("GET /5/off") >= 0) {relay5state = "off";pcf8574_R1.digitalWrite(P4, HIGH);}
            else if (header.indexOf("GET /6/on") >= 0)  {relay6state = "on";pcf8574_R1.digitalWrite(P5, LOW);}
            else if (header.indexOf("GET /6/off") >= 0) {relay6state = "off";pcf8574_R1.digitalWrite(P5, HIGH);}         
            else if (header.indexOf("GET /7/on") >= 0)  {relay7state = "on";pcf8574_R1.digitalWrite(P6, LOW);}
            else if (header.indexOf("GET /7/off") >= 0) {relay7state = "off";pcf8574_R1.digitalWrite(P6, HIGH);}
            else if (header.indexOf("GET /8/on") >= 0)  {relay8state = "on";pcf8574_R1.digitalWrite(P7, LOW);}
            else if (header.indexOf("GET /8/off") >= 0) {relay8state = "off";pcf8574_R1.digitalWrite(P7, HIGH);}
            else if (header.indexOf("GET /9/on") >= 0)  {relay9state = "on";pcf8574_R2.digitalWrite(P0, LOW);}
            else if (header.indexOf("GET /9/off") >= 0) {relay9state = "off";pcf8574_R2.digitalWrite(P0, HIGH);}         
            else if (header.indexOf("GET /10/on") >= 0)  {relay10state = "on";pcf8574_R2.digitalWrite(P1, LOW);}
            else if (header.indexOf("GET /10/off") >= 0) {relay10state = "off";pcf8574_R2.digitalWrite(P1, HIGH);}
            else if (header.indexOf("GET /11/on") >= 0)  {relay11state = "on";pcf8574_R2.digitalWrite(P2, LOW);}
            else if (header.indexOf("GET /11/off") >= 0) {relay11state = "off";pcf8574_R2.digitalWrite(P2, HIGH);}
            else if (header.indexOf("GET /12/on") >= 0)  {relay12state = "on";pcf8574_R2.digitalWrite(P3, LOW);}
            else if (header.indexOf("GET /12/off") >= 0) {relay12state = "off";pcf8574_R2.digitalWrite(P3, HIGH);}
            else if (header.indexOf("GET /13/on") >= 0)  {relay13state = "on";pcf8574_R2.digitalWrite(P4, LOW);}
            else if (header.indexOf("GET /13/off") >= 0) {relay13state = "off";pcf8574_R2.digitalWrite(P4, HIGH);}
            else if (header.indexOf("GET /14/on") >= 0)  {relay14state = "on";pcf8574_R2.digitalWrite(P5, LOW);}
            else if (header.indexOf("GET /14/off") >= 0) {relay14state = "off";pcf8574_R2.digitalWrite(P5, HIGH);}
            else if (header.indexOf("GET /15/on") >= 0)  {relay15state = "on";pcf8574_R2.digitalWrite(P6, LOW);}
            else if (header.indexOf("GET /15/off") >= 0) {relay15state = "off";pcf8574_R2.digitalWrite(P6, HIGH);}
            else if (header.indexOf("GET /16/on") >= 0)  {relay16state = "on";pcf8574_R2.digitalWrite(P7, LOW);}
            else if (header.indexOf("GET /16/off") >= 0) {relay16state = "off";pcf8574_R2.digitalWrite(P7, HIGH);}
       
            else if (header.indexOf("GET /read") >= 0) flag_read_di=1;
            else if (header.indexOf("GET /all/on") >= 0)
            {
              relay1state = "on";// state of relay1
              relay2state = "on";// state of relay2
              relay3state = "on";// state of relay3
              relay4state = "on";// state of relay4
              relay5state = "on";// state of relay5
              relay6state = "on";// state of relay6
              relay7state = "on";// state of relay7
              relay8state = "on";// state of relay8

              relay9state = "on";// state of relay9
              relay10state = "on";// state of relay10
              relay11state = "on";// state of relay11
              relay12state = "on";// state of relay12
              relay13state = "on";// state of relay13
              relay14state = "on";// state of relay14
              relay15state = "on";// state of relay15
              relay16state = "on";// state of relay16
              for(int i=0;i<=7;i++)
              {
                 pcf8574_R1.digitalWrite(i, LOW);
                 pcf8574_R2.digitalWrite(i, LOW);
              }
             
            }
            else if (header.indexOf("GET /all/off") >= 0)
            {
              relay1state = "off";// state of relay1
              relay2state = "off";// state of relay2
              relay3state = "off";// state of relay3
              relay4state = "off";// state of relay4
              relay5state = "off";// state of relay5
              relay6state = "off";// state of relay6
              relay7state = "off";// state of relay7
              relay8state = "off";// state of relay8

              relay9state = "off";// state of relay9
              relay10state = "off";// state of relay10
              relay11state = "off";// state of relay11
              relay12state = "off";// state of relay12
              relay13state = "off";// state of relay13
              relay14state = "off";// state of relay14
              relay15state = "off";// state of relay15
              relay16state = "off";// state of relay16


              for(int i=0;i<=7;i++)
              {
                 pcf8574_R1.digitalWrite(i, HIGH);
                 pcf8574_R2.digitalWrite(i, HIGH);
              }
               
            }
           
            // 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>html { font-family: Helvetica; display: inline-block; border: 3px solid green;margin: 0px 15px;}");
            client.println(".button { background-color: #195B00; border-radius: 10px;color: white; padding: 10px 40px;");
            client.println("text-decoration: none; font-size: 20px; margin: 2px;text-align: center; cursor: pointer;}");
            client.println(".button2 {background-color: #77878A;}</style></head>");
           
            if (flag_read_di==1)
            {
              client.println(" relay1:" + relay1state + " relay2:" + relay2state + " relay3:" + relay3state + " relay4:" + relay4state + " relay5:" + relay5state + " relay6:" + relay6state + " relay7:" + relay7state + " relay8:" + relay8state + " relay9:" + relay9state + " relay10:" + relay10state + " relay11:" + relay11state + " relay12:" + relay12state + " relay13:" + relay13state + " relay14:" + relay14state + " relay15:" + relay15state + " relay16:" + relay16state);
            }
            else
            {
            // Web Page Heading
            client.println("<body><h1>KC868-A16 Web Server</h1>");


            // Display current state, and ON/OFF buttons for relay
            //client.println("<p>relay1 - State " + relay1state + "</p>");
            // If the relay is off, it displays the ON button     
            if (relay1state == "off") client.println("<a href=\"/1/on\"><button class=\"button\">01-OFF</button></a>"); else client.println("<a href=\"/1/off\"><button class=\"button\">01-ON </button></a>");
            if (relay2state == "off") client.println("<a href=\"/2/on\"><button class=\"button\">02-OFF</button></a>"); else client.println("<a href=\"/2/off\"><button class=\"button\">02-ON </button></a>");                                 
            if (relay3state == "off") client.println("<a href=\"/3/on\"><button class=\"button\">03-OFF</button></a>"); else client.println("<a href=\"/3/off\"><button class=\"button\">03-ON </button></a>");
            if (relay4state == "off") client.println("<a href=\"/4/on\"><button class=\"button\">04-OFF</button></a>"); else client.println("<a href=\"/4/off\"><button class=\"button\">04-ON </button></a>");
            if (relay5state == "off") client.println("<a href=\"/5/on\"><button class=\"button\">05-OFF</button></a>"); else client.println("<a href=\"/5/off\"><button class=\"button\">05-ON </button></a>");
            if (relay6state == "off") client.println("<a href=\"/6/on\"><button class=\"button\">06-OFF</button></a>"); else client.println("<a href=\"/6/off\"><button class=\"button\">06-ON </button></a>");                                 
            if (relay7state == "off") client.println("<a href=\"/7/on\"><button class=\"button\">07-OFF</button></a>"); else client.println("<a href=\"/7/off\"><button class=\"button\">07-ON </button></a>");
            if (relay8state == "off") client.println("<a href=\"/8/on\"><button class=\"button\">08-OFF</button></a>"); else client.println("<a href=\"/8/off\"><button class=\"button\">08-ON </button></a>");
            if (relay9state == "off") client.println("<a href=\"/9/on\"><button class=\"button\">09-OFF</button></a>"); else client.println("<a href=\"/9/off\"><button class=\"button\">09-ON </button></a>");
            if (relay10state == "off") client.println("<a href=\"/10/on\"><button class=\"button\">10-OFF</button></a>"); else client.println("<a href=\"/10/off\"><button class=\"button\">10-ON</button></a>");                                 
            if (relay11state == "off") client.println("<a href=\"/11/on\"><button class=\"button\">11-OFF</button></a>"); else client.println("<a href=\"/11/off\"><button class=\"button\">11-ON</button></a>");
            if (relay12state == "off") client.println("<a href=\"/12/on\"><button class=\"button\">12-OFF</button></a>"); else client.println("<a href=\"/12/off\"><button class=\"button\">12-ON</button></a>");
            if (relay13state == "off") client.println("<a href=\"/13/on\"><button class=\"button\">13-OFF</button></a>"); else client.println("<a href=\"/13/off\"><button class=\"button\">13-ON</button></a>");
            if (relay14state == "off") client.println("<a href=\"/14/on\"><button class=\"button\">14-OFF</button></a>"); else client.println("<a href=\"/14/off\"><button class=\"button\">14-ON</button></a>");                                 
            if (relay15state == "off") client.println("<a href=\"/15/on\"><button class=\"button\">15-OFF</button></a>"); else client.println("<a href=\"/15/off\"><button class=\"button\">15-ON</button></a>");
            if (relay16state == "off") client.println("<a href=\"/16/on\"><button class=\"button\">16-OFF</button></a>"); else client.println("<a href=\"/16/off\"><button class=\"button\">16-ON</button></a>");

              client.println("<a href=\"/all/on\"><button class=\"button\">All-ON</button></a>");
              client.println("<a href=\"/all/off\"><button class=\"button\">All-OFF</button></a>");
            } 
            client.println("</body></html>");
           
            // The HTTP response ends with another blank line
            client.println();
            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("");
    flag_read_di=0;
  }

  ScanKey();            //scan key
  if ( digitalRead(TRIGGER_PIN) == LOW) {wm.resetSettings();ESP.restart();}
}

void ScanKey()           
{
  for(int i=0;i<=7;i++)
  {
    if(pcf8574_I1.digitalRead(i) == LOW)         //key pressed
      {
        delay(20);                       
        if(pcf8574_I1.digitalRead(i) == LOW)       //key pressed again
        {
          pcf8574_R1.digitalWrite(i,!pcf8574_R1.digitalRead(i));    // toggle relay1 state     
          while(pcf8574_I1.digitalRead(i) == LOW); //wait remove hand
          if (pcf8574_R1.digitalRead(i) == LOW) relaystate[i+1]="on";else relaystate[i+1]="off";
        }
      }
  }

    for(int j=0;j<=7;j++)
  {
    if(pcf8574_I2.digitalRead(j) == LOW)         //key pressed
      {
        delay(20);                       
        if(pcf8574_I2.digitalRead(j) == LOW)       //key pressed again
        {
          pcf8574_R2.digitalWrite(j,!pcf8574_R2.digitalRead(j));    // toggle relay1 state     
          while(pcf8574_I2.digitalRead(j) == LOW); //wait remove hand
          if (pcf8574_R2.digitalRead(j) == LOW) relaystate[j+8]="on";else relaystate[j+8]="off";
       
        }
      }
  }

}
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