किसी भी पुरानी कार को बनाओ wifi कार | using Node Mcu

(9v battery is used. you may use upload 12v battery)

esp8266 Code

/* Fill-in information from Blynk Device Info here */

#define BLYNK_TEMPLATE_ID "template id"

#define BLYNK_TEMPLATE_NAME "Template name"

#define BLYNK_AUTH_TOKEN "pasteHere"

#define BLYNK_FIRMWARE_VERSION "0.0.1"

/* Comment this out to disable prints and save space */

#define BLYNK_PRINT Serial

/* WIFI INFO*******************************************/

const char ssid[] = "wifi name" ;

const char pass[] = "password" ;

const int PIN_IN1 = 5; //D1

const int PIN_IN2 = 4; //D2

const int PIN_IN3 = 14; //D5

const int PIN_IN4 = 12; //D6

/*

D1 5

D2 4

D3 0

D4 2

D5 14

D6 12

D7 13

D8 15

*/

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

BLYNK_WRITE(V1){

Serial.println("move front");

int value = param.asInt();

if(param.asInt() == 1){ digitalWrite(PIN_IN1, HIGH); digitalWrite(PIN_IN3, HIGH);

}else{ digitalWrite(PIN_IN1, LOW); digitalWrite(PIN_IN3, LOW); }

Blynk.virtualWrite(V1, value);}

BLYNK_WRITE(V2){

Serial.println("move back");

int value = param.asInt();

if(param.asInt() == 1) {digitalWrite(PIN_IN2, HIGH); digitalWrite(PIN_IN4, HIGH);

} else { digitalWrite(PIN_IN2, LOW); digitalWrite(PIN_IN4, LOW); }

Blynk.virtualWrite(V2, value);

}

BLYNK_WRITE(V3){

Serial.println("move right");

int value = param.asInt();

if(param.asInt() == 1) { digitalWrite(PIN_IN2, HIGH);

}else { digitalWrite(PIN_IN2, LOW); }

Blynk.virtualWrite(V3, value);}

BLYNK_WRITE(V4){

Serial.println("move left");

int value = param.asInt();

if(param.asInt() == 1) { digitalWrite(PIN_IN4, HIGH);

} else { digitalWrite(PIN_IN4, LOW); }

Blynk.virtualWrite(V4, value);

}

// This function is called every time the device is connected to the Blynk.Cloud

BLYNK_CONNECTED(){

Blynk.syncVirtual(V1); // will cause BLYNK_WRITE(V0) to be executed

Blynk.syncVirtual(V2); // will cause BLYNK_WRITE(V0) to be executed

Blynk.syncVirtual(V3); // will cause BLYNK_WRITE(V0) to be executed

Blynk.syncVirtual(V4); // will cause BLYNK_WRITE(V0) to be executed

}

void setup()

{

Serial.begin(115200);

Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

pinMode(PIN_IN1, OUTPUT);

pinMode(PIN_IN2, OUTPUT);

pinMode(PIN_IN3, OUTPUT);

pinMode(PIN_IN4, OUTPUT);

/*off by default*/

digitalWrite(PIN_IN1, LOW);

digitalWrite(PIN_IN2, LOW);

digitalWrite(PIN_IN3, LOW);

digitalWrite(PIN_IN4, LOW);

//lastMilliSec = millis();

}

void loop()

{

Blynk.run();

}