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DHT11 Temperature and Relative Humidity Sensor Module for Arduino
  • DHT11 Temperature and Relative Humidity Sensor Module for Arduino

DHT11 Temperature and Relative Humidity Sensor Module for Arduino

BDT 120
rating Read the 10 reviews
Average rating: 5/5 - Number of reviews: 10
Quantity
In Stock

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Description

Introduction

This DHT11 Temperature and Humidity Sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit microcontroller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages.

Each DHT11 sensors features extremely accurate calibration of humidity calibration chamber. The calibration coefficients stored in the OTP program memory, internal sensors detect signals in the process, we should call these calibration coefficients. The single-wire serial interface system is integrated to become quick and easy. Small size, low power, signal transmission distance up to 20 meters, making it a variety of applications and even the most demanding applications. The product is 4-pin single row pin package. Convenient connection, special packages can be provided according to users need.

 

Specification

  • Supply Voltage: +5 V
  • Temperature range :0-50 °C error of ± 2 °C
  • Humidity :20-90% RH ± 5% RH error
  • Interface: Digital

Tutorial

Connecting diagram

DFR0067 diagram.png

Sample Code

Please download the DHTLib to your Arduino library first.

#include <dht11.h>
dht11 DHT;
#define DHT11_PIN 4

void setup(){
  Serial.begin(9600);
  Serial.println("DHT TEST PROGRAM ");
  Serial.print("LIBRARY VERSION: ");
  Serial.println(DHT11LIB_VERSION);
  Serial.println();
  Serial.println("Type,tstatus,tHumidity (%),tTemperature (C)");
}

void loop(){
  int chk;
  Serial.print("DHT11, t");
  chk = DHT.read(DHT11_PIN);    // READ DATA
  switch (chk){
    case DHTLIB_OK:  
                Serial.print("OK,t"); 
                break;
    case DHTLIB_ERROR_CHECKSUM: 
                Serial.print("Checksum error,t"); 
                break;
    case DHTLIB_ERROR_TIMEOUT: 
                Serial.print("Time out error,t"); 
                break;
    default: 
                Serial.print("Unknown error,t"); 
                break;
  }
 // DISPLAT DATA
  Serial.print(DHT.humidity,1);
  Serial.print(",t");
  Serial.println(DHT.temperature,1);

  delay(2000);
}

Trouble shooting

More question and cool idea, visit DFRobot Forum

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Product Details
91 Items

Click here to leave a review

3.5
rating
13/05/2020
Md. Ahsan Habib
Product was intact, but not able to connect till now,
DHT11
rating
01/04/2020
Asadullah Pranto
GOOD PRODUCT
DHT11 Temperature and Relative Humidity Sensor Mo
rating
24/03/2020
Jawadul Karim
Good, Working
Dht sensor
rating
11/03/2020
Mahmudul Hasan Abid
Good
good
rating
06/01/2020
Tahmid Hossain Nihal
the product in well enough and works well
Very good
rating
02/01/2020
Dr sakeb\r\n
Excellent
good quality
rating
06/10/2019
Mahamudur rahman
impressive
dsdd
rating
05/10/2019
MRI
dfgdfgdf
very good
rating
28/08/2019
Shadeed ur Rahman
very good
sensor
rating
16/08/2019
ESTIAK KHAN
average
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