Serial Communication between NodeMCU and Arduino with webserver!

#DIAGRAM:--

NOTE: REMOVE RX AND TX PIN WHILE UPLOADING CODE OR U WILL FACE ERROR

#Setting our UNO - IDE

#FOLLOW UP:)

1.OPEN-UNO-IDE: Add this link to the additional board manager URL

link: https://arduino.esp8266.com/stable/package_esp8266com_index.json

2.Install ESP8266 [fallow image]

3.HOW TO UPLOAD CODE!

#CODE FOR ARDUINO

int led = 12;
void setup() {
pinMode(12,OUTPUT);
Serial.begin(9600);

while (!Serial);
Serial.println("Input 1 to Turn LED on and 0 to off");


}

void loop() {
if(Serial.available()){
int state = Serial.parseInt();


if (state == 3){
digitalWrite(12,HIGH);
Serial.println("Command received:1 LED turned ON");


  }

if (state == 4){
digitalWrite(12,LOW);
Serial.println("Command received:0 LED turned OFF");
}

}}

#CODE FOR NODEMCU8266

REMEMBER TO PUT UR WIFI&PASSWORD

# include <ESP8266WiFi.h>
# include<SoftwareSerial.h>


WiFiClient
client;
WiFiServer
server(80);
SoftwareSerial
abc(13, 15);
# define led D5
# define led2 D6

void
setup()
{
// put
your
setup
code
here, to
run
once: \
    Serial.begin(9600);
WiFi.begin("cool", "gaurav123");
while (WiFi.status() != WL_CONNECTED)
    {
        delay(200);
    Serial.print("..");
    }
    Serial.println();
    Serial.println("NodeMCU is connected!");
    Serial.println(WiFi.localIP());
    server.begin();
    pinMode(led, OUTPUT);
    pinMode(led2, OUTPUT);
}

void
loop()
{
// put
your
main
code
here, to
run
repeatedly:
client = server.available(); // Gets
a
client
that is connected
to
the
server and has
data
available
for reading.
    if (client == 1)
        {
            String
    request = client.readStringUntil('\n');
    Serial.println(request);
    request.trim();
    if (request == "GET /led1on HTTP/1.1")
    {Serial.write("3");

    }
    if (request == "GET /led1off HTTP/1.1")
    {Serial.write("4");

    }
    if (request == "GET /led2on HTTP/1.1")
    {
    digitalWrite(led2, HIGH);
    }
    if (request == "GET /led2off HTTP/1.1")
    {
    digitalWrite(led2, LOW);
    }
    }
client.println("HTTP/1.1 200 OK"); //

client.println("Content-Type: text/html");
client.println("");
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<h1>Welcome to the Webpage!</h1>");
client.println("<h3>LED Controls<h3>");
client.println("<br>");
client.println("<a href=\"/led1on\"\"><button>LED 1 ON</button></a>");
client.println("<a href=\"/led1off\"\"><button>LED 1 OFF</button></a><br/>");
client.println("<a href=\"/led2on\"\"><button>LED 2 ON</button></a>");
client.println("<a href=\"/led2off\"\"><button>LED 2 OFF</button></a><br/>");
client.println("</html>");
}

#OPEN MONITOR AND & PRESS THE RESET BUTTON TO SEE THE IP WHERE U CAN CONTROL THE LED

Serial Communication between NodeMCU and Arduino with webserver!

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