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Arnov Sharma
Published © MIT

Home Automation Board with ESP8266 Dual Output

I made a custom home automation board from scratch using the ESP07S module and other mandatory components.

BeginnerFull instructions provided1 hour457
Home Automation Board with ESP8266 Dual Output

Things used in this project

Hardware components

PCBWay Custom PCB
PCBWay Custom PCB
×1
NodeMCU ESP8266 Breakout Board
NodeMCU ESP8266 Breakout Board
×1
Espressif esp07s
×1

Story

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Schematics

sch

Code

Main Home AUT CODE

C/C++
#include <ESP8266WiFi.h>

// Replace with your network credentials
const char *ssid = "YOUR SSID";
const char *password = "YOUR PASS";

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

// Variable to store the HTTP request
String header;

// Auxiliar variables to store the current output state
String output1State = "off";
String output2State = "off";

// Assign output variables to GPIO pins
const int output1 = 0; //RELAY1
const int output2 = 4; //RELAY2
const int ledPin1 = 15; //LED1
const int ledPin2 = 2; //LED2


void setup() {
  Serial.begin(115200);
  // Initialize the output variables as outputs
  pinMode(output1, OUTPUT);
  pinMode(output2, OUTPUT);

  //LEDs
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);  
  // Set outputs to LOW
  digitalWrite(output1, LOW);
  digitalWrite(output2, LOW);

  // 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();
}

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
    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();
            
            // turns the GPIOs on and off
            if (header.indexOf("GET /1/on") >= 0) {
              Serial.println("LOAD1 on");
              output1State = "on";
              digitalWrite(output1, HIGH);
              digitalWrite(ledPin1, HIGH);
            } else if (header.indexOf("GET /1/off") >= 0) {
              Serial.println("LOAD1 off");
              output1State = "off";
              digitalWrite(output1, LOW);
              digitalWrite(ledPin1, LOW);
            } else if (header.indexOf("GET /2/on") >= 0) {
              Serial.println("LOAD2 on");
              output2State = "on";
              digitalWrite(output2, HIGH);
              digitalWrite(ledPin2, HIGH);
            } else if (header.indexOf("GET /2/off") >= 0) {
              Serial.println("LOAD2 off");
              output2State = "off";
              digitalWrite(output2, LOW);
              digitalWrite(ledPin2, LOW);
            }
            
            // 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; margin: 0px auto; text-align: center;}");
            client.println(".button { background-color: #5B196A; border: none; color: white; padding: 16px 40px;");
            client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
            client.println(".button2 {background-color: #5B196A;}</style></head>");
            
            // Web Page Heading
            client.println("<body><h1>HOME AUTOMATION DUAL OUTPUT</h1>");
            
            // Display current state, and ON/OFF buttons for OUTPUT1 
            client.println("<p>LOAD1 - State " + output1State + "</p>");
           
            // If the output1State is off, it displays the ON button       
            if (output1State=="off") {
              client.println("<p><a href=\"/1/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/1/off\"><button class=\"button button2\">OFF</button></a></p>");
            } 
               
            // Display current state, and ON/OFF buttons for GPIO 4  
            client.println("<p>LOAD2 - State " + output2State + "</p>");
            
            // If the output4State is off, it displays the ON button       
            if (output2State=="off") {
              client.println("<p><a href=\"/2/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/2/off\"><button class=\"button button2\">OFF</button></a></p>");
            }
            client.println("</body></html>");
            
            // 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("");
  }
}

Test Sketch- chaser sketch

C/C++
int pinsCount=5;                        // declaring the integer variable pinsCount
int pins[] = {0,4,15,2};          // declaring the array pins[]


void setup() {
  pinMode(0, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(2, OUTPUT);

  
                  
}

 
void loop() {
  for (int i=0; i<pinsCount; i=i+1){    // chasing right
    digitalWrite(pins[i], HIGH);         // switching the LED at index i on
    delay(70);                          // stopping the program for 100 milliseconds
    digitalWrite(pins[i], LOW);          // switching the LED at index i off
  }
  for (int i=pinsCount-1; i>0; i=i-1){   // chasing left (except the outer leds)
    digitalWrite(pins[i], HIGH);         // switching the LED at index i on
    delay(70);                          // stopping the program for 100 milliseconds
    digitalWrite(pins[i], LOW);          // switching the LED at index i off
  }

}

Credits

Arnov Sharma

Arnov Sharma

310 projects • 311 followers
Just your average MAKER

Comments

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