Using DHT11

This tutorial will show you how to use DHT11 with Arduino.

Nov 23, 2018

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weather

environmental sensing

Components and supplies

DHT22 Temperature Sensor

DHT11 Temperature & Humidity Sensor (4 pins)

DHT11 Temperature & Humidity Sensor (3 pins)

Jumper wires (generic)

Arduino UNO

Breadboard (generic)

Apps and platforms

Arduino IDE

Project description

Code

DHT11 Library

Don't forget to add this library to the Arduino IDE.

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Latest commit to the master branch on Invalid date

Download as a zip

DHT11.ino

arduino

The code for receiving the data from the DHT11 and printing it out on the serial monitor.

1#include <dht11.h>
2#define DHT11PIN 4
3
4dht11 DHT11;
5
6void  setup()
7{
8  Serial.begin(9600);
9 
10}
11
12void loop()
13{
14  Serial.println();
15
16  int chk = DHT11.read(DHT11PIN);
17
18  Serial.print("Humidity (%): ");
19  Serial.println((float)DHT11.humidity, 2);
20
21  Serial.print("Temperature  (C): ");
22  Serial.println((float)DHT11.temperature, 2);
23
24  delay(2000);
25
26}

#include <dht11.h>
#define DHT11PIN 4

dht11 DHT11;

void  setup()
{
  Serial.begin(9600);
 
}

void loop()
{
  Serial.println();

  int chk = DHT11.read(DHT11PIN);

  Serial.print("Humidity (%): ");
  Serial.println((float)DHT11.humidity, 2);

  Serial.print("Temperature  (C): ");
  Serial.println((float)DHT11.temperature, 2);

  delay(2000);

}

DHT11 Library

Don't forget to add this library to the Arduino IDE.

no description/ Read More

Latest commit to the master branch on Invalid date

Download as a zip

Downloadable files

Schematics

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