iotguider

const int buttonPin = 6;     //Number of Pushbutton Pin
const int ledPin =  13;      //Number of LED Pin

int buttonState = 0;         //Variable of Pushbutton Status

void setup() {
  //Initialize LED Pin
  pinMode(ledPin, OUTPUT);
  //Initialize Pushbutton Pin
  pinMode(buttonPin, INPUT);

iotguider

int tempPin = A0; //Number of Temperature Sensor Pin
int analoginput; //Variable to store Analog Input Value
float temp; //Variable to store Temperature in C

void setup()
{
  // Begin the Serial Monitor at 9600 Baud
  Serial.begin(9600);
}

iotguider

#define trigPin 13
#define echoPin 12

void setup() {
  Serial.begin (9600); // Begin the Serial Monitor at 9600 Baud
  pinMode(trigPin, OUTPUT); // Initialize Trigger Pin
  pinMode(echoPin, INPUT); // Initialize Echo Pin
}

void loop() {

iotguider

#include <LiquidCrystal.h>  //Library for LCD 

LiquidCrystal lcd(12, 11, 5, 4, 3, 2); //initialize the library with the numbers of the interface pins
                                       //The function parameter is as follows LiquidCrystal(rs, enable, d4, d5, d6, d7) 
                                      
void setup() {
  lcd.begin(16, 2);  //Setup number of rows andcolumns of LCD
}

void loop() {

iotguider

#define LDR A0 //Initialize LDR sensor pin.

void setup() {
  //Begin the Serial Monitor at 9600 Baud
  Serial.begin(9600);
}

void loop() {
  int value = analogRead(LDR);  //Store sensor value to variable
  Serial.println(value);        //Print the value to serial

iotguider

int input1 = 11; //Number of Motor Input 1 Pin
int input2 = 9; //Number of Motor Input 2 Pin

void setup() {
  pinMode(input1, OUTPUT); //Initialize Input 1 Pin
  pinMode(input2, OUTPUT); //Initialize Input 2 Pin
}

void loop() {
  analogWrite(input1, 0); //Write Analog value to Input 1

iotguider

void setup() {
  // initialize LED_BUILTIN as an output pin.
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off
  delay(1000);

iotguider

char mystr[5] = "Hello"; //String data

void setup() {
  // Begin the Serial at 9600 Baud
  Serial.begin(9600);
}

void loop() {
  Serial.write(mystr,5); //Write the serial data
  delay(1000);

iotguider

char mystr[10]; //Initialized variable to store recieved data

void setup() {
  // Begin the Serial at 9600 Baud
  Serial.begin(9600);
}

void loop() {
  Serial.readBytes(mystr,5); //Read the serial data and store in var
  Serial.println(mystr); //Print data on Serial Monitor

iotguider

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>

ESP8266WebServer server(80);

const char* ssid = "WiFi_SSID"; //Enter Wi-Fi SSID
const char* password =  "WiFi_Password"; //Enter Wi-Fi Password
 
void setup() {
  Serial.begin(115200); //Begin Serial at 115200 Baud