[Arduino IDE demo source code for KC868-A8]--#11-Ethernet_Web server_code

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[Arduino IDE demo source code for KC868-A8]--#11-Ethernet_Web server_code
   

  KC868-A8_Web_Server-ETH.zip (Size: 33.43 MB / Downloads: 399)
   

Code:

/***********************************************************
* Create Your own WebServer for KC868-A8 Smart Controller*
* https://www.kincony.com                                **
***********************************************************/

#include "PCF8574.h"
#define DEBUG_ETHERNET_WEBSERVER_PORT       Serial

// Debug Level from 0 to 4
#define _ETHERNET_WEBSERVER_LOGLEVEL_       3

#include <WebServer_WT32_ETH01.h>

WiFiServer server(80);

// 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;

// Variable to store the HTTP request
String header;
TwoWire I2Cone = TwoWire(0);
TwoWire I2Ctwo = TwoWire(1);
//set I2C of A8
PCF8574 pcf8574_I1(&I2Cone,0x22,4,5);
PCF8574 pcf8574_R1(&I2Cone,0x24,4,5);

String relaystate[8]={"relay1state","relay2state","relay3state","relay4state",
                       "relay5state","relay6state","relay7state","relay8state",
                     };
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
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";
        }
      }
  }

}

void setup() {

  Serial.begin(115200);

  // Set PCF8574 pinMode to OUTPUT
  for(int i=0;i<=7;i++)
  {
     pcf8574_R1.pinMode(i, OUTPUT);
  }
 
  pcf8574_R1.begin();
 
  for(int i=0;i<=7;i++)
  {
     pcf8574_I1.pinMode(i, INPUT);
  }

    pcf8574_I1.begin();
     

  for(int i=0;i<=7;i++)
  {
     pcf8574_R1.digitalWrite(i, HIGH);
  }
   while (!Serial);

  // Using this if Serial debugging is not necessary or not using Serial port
  //while (!Serial && (millis() < 3000));

  Serial.print("\nStarting WebServer on " + String(ARDUINO_BOARD));
  Serial.println(" with " + String(SHIELD_TYPE));
  Serial.println(WEBSERVER_WT32_ETH01_VERSION);

  // To be called before ETH.begin()
  WT32_ETH01_onEvent();

  //bool begin(uint8_t phy_addr=ETH_PHY_ADDR, int power=ETH_PHY_POWER, int mdc=ETH_PHY_MDC, int mdio=ETH_PHY_MDIO,
  //           eth_phy_type_t type=ETH_PHY_TYPE, eth_clock_mode_t clk_mode=ETH_CLK_MODE);
  //ETH.begin(ETH_PHY_ADDR, ETH_PHY_POWER, ETH_PHY_MDC, ETH_PHY_MDIO, ETH_PHY_TYPE, ETH_CLK_MODE);
  ETH.begin(ETH_PHY_ADDR, ETH_PHY_POWER);

  // Static IP, leave without this line to get IP via DHCP
  //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);
// ETH.config(myIP, myGW, mySN, myDNS);

  //WT32_ETH01_waitForConnect();

  // start the web server on port 80
  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 /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

              for(int i=0;i<=7;i++)
              {
                 pcf8574_R1.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

              for(int i=0;i<=7;i++)
              {
                 pcf8574_R1.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 auto;text-align: center;font-size: 10px;}");
            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);
            }
            else
            {
            // Web Page Heading
            client.println("<body><h1>KC868-A8 Web Server</h1>");


            // Display current state, and ON/OFF buttons for relay
            //client.println("<p>relay1 - State " + relay1state + "</p>");
              
            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>");
           
              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
}