Temperature and humidity sensor with Arduino

1#include <dht.h>
2#include <LiquidCrystal_I2C.h>
3
4LiquidCrystal_I2C  lcd = liquidCrystal_I2C(0x27, 20, 4)
5
6dht DHT;
7
8#define DHT11_PIN 7
9
10void  setup(){
11  lcd.init(); // initialise I2C LCD
12  lcd.backlight(); // Turn On  the backlight of the I2C LCD
13}
14
15void loop(){
16  int chk = DHT.read11(DHT11_PIN);
17  lcd.setCursor(0,0); 
18  lcd.print("Temp: ");
19  lcd.print(DHT.temperature);
20  lcd.print((char)223);
21  lcd.print("C");
22  lcd.setCursor(0,1);
23  lcd.print("Humidity:  ");
24  lcd.print(DHT.humidity);
25  lcd.print("%");
26  delay(1000);
27}

1#include <dht.h> // You have to download this liibrary. NAME: dht library
2
3dht  DHT; 
4
5#define DHT11_PIN 7 // define DHT pin
6
7void setup(){
8  Serial.begin(9600);  // Start serial communication
9}
10
11void loop(){
12  int chk = DHT.read11(DHT11_PIN);  // check the data coming from the DHT pin
13  Serial.print("Temperature = ");  // print temperature on the serial monitor
14  Serial.println(DHT.temperature);
15  Serial.print("Humidity = ");// Print humidity on the serial monitor
16  Serial.println(DHT.humidity);
17  delay(1000); // delay of 1 second
18}
19
20
21      /*Here are the connections
22      
23      Take a DHT11 sensor.
24      there, in the DHT11 sensor, there  are 3 or 4 pins.
25      There, on the DHT11 sensor, there is writen S, +, -
26      connect "S" on the digital pin 7.
27      connect "+" on the 5V pin on  Arduino.
28      connect "-" on the GND pin on Arduino.
29      
30      Thank  you
31      Meet you in the next project.
32      */ 
33
34

1#include <dht.h> // You have to download this liibrary. NAME: dht library
2
3dht
4  DHT; 
5
6#define DHT11_PIN 7 // define DHT pin
7
8void setup(){
9  Serial.begin(9600);
10  // Start serial communication
11}
12
13void loop(){
14  int chk = DHT.read11(DHT11_PIN);
15  // check the data coming from the DHT pin
16  Serial.print("Temperature = ");
17  // print temperature on the serial monitor
18  Serial.println(DHT.temperature);
19
20  Serial.print("Humidity = ");// Print humidity on the serial monitor
21  Serial.println(DHT.humidity);
22
23  delay(1000); // delay of 1 second
24}
25
26
27      /*Here are the connections
28
29      
30      Take a DHT11 sensor.
31      there, in the DHT11 sensor, there
32  are 3 or 4 pins.
33      There, on the DHT11 sensor, there is writen S, +, -
34
35      connect "S" on the digital pin 7.
36      connect "+" on the 5V pin on
37  Arduino.
38      connect "-" on the GND pin on Arduino.
39      
40      Thank
41  you
42      Meet you in the next project.
43      */ 
44
45