firmware.ino

#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncJson.h>
#include <ArduinoJson.h>
#include <DNSServer.h>
#include <ESP8266mDNS.h>
#include <FS.h>  // For SPIFFS
#include <FastLED.h>
#define NUM_LEDS 2
#define DATA_PIN 0
CRGB leds[NUM_LEDS];
#define IN_1  2                
#define IN_2  14               
#define IN_3  13                
#define IN_4  12   
AsyncWebServer server(80);
DNSServer dnsServer;
int value ;

class CaptiveRequestHandler : public AsyncWebHandler {
  public:
    CaptiveRequestHandler() {}
    virtual ~CaptiveRequestHandler() {}

    bool canHandle(AsyncWebServerRequest* request) override {
      return true; // Handle all requests
    }

    void handleRequest(AsyncWebServerRequest* request) override {
      request->send(SPIFFS, "/www/index.html"); // Serve index.html for all requests
    }
};

void setupNetwork() {
  WiFi.softAP("ESP8266-AP");
  Serial.println("Access Point Started");
  Serial.println(WiFi.softAPIP());
   Serial.println(WiFi.localIP());
  dnsServer.start(53, "*", WiFi.softAPIP()); // Captive portal DNS
}

void setupServer() {
  // Serve static files from SPIFFS
  server.serveStatic("/", SPIFFS, "/www/").setDefaultFile("index.html").setCacheControl("max-age=60000");

  // Handle joystick endpoints with status code only
  server.on("/left", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /left request");
    value= 1; 
    delay (1);
    value= 0;
    // turn the LED on (HIGH is the voltage level) 
    request->send(200); // Send status 200 OK
  });

  server.on("/right", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /right request");
    goRight();
    request->send(200); // Send status 200 OK
  });

  server.on("/up", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /up request");
    goAhead();
    request->send(200); // Send status 200 OK
  });

  server.on("/down", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /down request");
    goBack();
    request->send(200); // Send status 200 OK
  });

  server.on("/x", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /x request");
    request->send(200); // Send status 200 OK
  });

  server.on("/y", HTTP_POST, [](AsyncWebServerRequest *request) {
    Serial.println("Received /y request");
    request->send(200); // Send status 200 OK
  });

  // Handle all other requests with the captive portal
  server.addHandler(new CaptiveRequestHandler()).setFilter(ON_AP_FILTER); // Only on access point

  server.begin();
}

void setup() {
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS); 
 pinMode(IN_1, OUTPUT);
 pinMode(IN_2, OUTPUT);
 pinMode(IN_3, OUTPUT);
 pinMode(IN_4, OUTPUT); 
  Serial.begin(115200); // Higher baud rate for better performance
  SPIFFS.begin(); // Initialize SPIFFS
  setupNetwork();
  setupServer();
}

void loop() {
  dnsServer.processNextRequest(); // Handle DNS requests for captive portal
  Serial.println(value);
}
void goAhead(){ 

      digitalWrite(IN_1, LOW);
      digitalWrite(IN_2, HIGH);
     

      digitalWrite(IN_3, LOW);
      digitalWrite(IN_4, HIGH);
      leds[0] = CRGB::Magenta;
  leds[1] = CRGB::Magenta;
  FastLED.show();
  delay(50);
     
  }

void goBack(){ 

      digitalWrite(IN_1, HIGH);
      digitalWrite(IN_2, LOW);
    

      digitalWrite(IN_3, HIGH);
      digitalWrite(IN_4, LOW);
       leds[0] = CRGB::Cyan;
  leds[1] = CRGB::Cyan;
  FastLED.show();
  delay(50); 
  }

void goRight(){ 

      digitalWrite(IN_1, HIGH);
      digitalWrite(IN_2, LOW);
     

      digitalWrite(IN_3, LOW);
      digitalWrite(IN_4, HIGH);
         leds[0] = CRGB::Green;
  leds[1] = CRGB::Green;
  FastLED.show();
  delay(50); 
  }

void goLeft(){

      digitalWrite(IN_1, LOW);
      digitalWrite(IN_2, HIGH);
      

      digitalWrite(IN_3, HIGH);
      digitalWrite(IN_4, LOW);
          leds[0] = CRGB::Blue;
  leds[1] = CRGB::Blue;
  FastLED.show();
  delay(50); 
      
  }


void stopRobot(){  

      digitalWrite(IN_1, LOW);
      digitalWrite(IN_2, LOW);
      

      digitalWrite(IN_3, LOW);
      digitalWrite(IN_4, LOW);
          leds[0] = CRGB::Red;
  leds[1] = CRGB::Red;
  FastLED.show();
  delay(50); 
     
 }