Before working on the software coding, we need to add the respective libraries to the arduino ide. It has all the functions needed to get the humidity and temperature readings from the sensor. For that we have to make only 3 connections between the dht11 sensor and esp8266. For example, the builtin liquidcrystal library makes it easy to talk to. Hi, hello electronics lovers welcome to this tutorial, in this tutorial i will show you how to interface dht11 a very popular temperature and humidity sensor with arduino.
Esp8266 dht11dht22 temperature and humidity web server with arduino ide. Again we will be using a library specifically designed for these sensors. Below you can find dht11 arduino code and dht11 library. This tutorial shows how to use the dht11 and dht22 temperature and humidity sensors with the esp32 using arduino ide. The opensource arduino software ide makes it easy to write code and upload it to the board. Dht11 sensor example in this example we will show a basic example of connecting a dht11 temperature and humidity sensor to your arduino. Esp32 with dht11dht22 temperature and humidity sensor. It can be used as humidity sensor as well as the temperature sensor. In this project, we will use the ky015 arduino dht11 temperaturehumidity sensor and display it to the arduino ide serial monitor. Arduino with grove dht11 sensor and 1602 lcd simple projects.
Check the complete program for nrf24l01 arduino uno transmitter and receiver have given at the end of this document. A very easy genuino uno project with lcd and dht11 temp. How to use the dht11 temperature humidity sensor with arduino. Dht11 sensor module interfacing with arduino with code. Download dht11 dht22 library from github and add it to your library manager. Dht11 vs dht22 easy to use with an arduino but which one. Arduino example code for dht11, dht22am2302 and dht21am2301 temperature and humidity sensors.
Next its necessary to install our dht library, which can be done though the arduino library. After copying the files, the arduino library folder should have a new folder named dht containing the dht. Click the install button, or update from an earlier version. Interfacing of dht11 temperature and humidity sensor with. Having your arduino aware of temperature and humidity adds some really neat real world use cases for your arduino projects, so in this tutorial we will focus on using arduino temperature sensors in our projects. Spi library is used for spi communication between nrf24l01 and arduino, and the dht11 library is used to calculate the temperature and humidity values. In this tutorial we will learn how to use a dht dht11 version temperature and humidity sensor. I cant seem to find a working library for a dht11 sensor and arduino mega. How to interface humidity and temperature dht11 sensor. Here i am providing complete information about how to setup the dht11 humidity sensor on an arduino board.
In this tutorial we will be using a library designed to work with both the dht11 and the dht22, so it kinda confirms that these are pretty similar. In the arduino ide, go to sketch include library add zip file. The basic function of the dht22 or dht11 is to measure humidity but in order to do that accurately it also measures temperature the temperature value. We have to add two different libraries on the arduino ide. For the working demonstration we will be programing esp8266 as a web server for displaying temperature and humidity in a web browser as per request. Additionally, we will also understand the sensors features and working. How to set up the dht11 humidity sensor on an arduino. For this, you need to include the dht11 library in your arduino code. Well go through a quick introduction to these sensors, pinout, wiring diagram, and finally the arduino sketch. Dht11 humidity and temperature sensor with arduino youtube. Before youcan use thedht11 on the arduino, youllneed to install the dhtlib library. Using a dhtxx sensor dht11, dht22 and am2302 sensors. Once you are comfortable with the arduino software and using the builtin functions, you may want to extend the ability of your arduino with additional libraries. How to setup dht11 sensor with arduino electronics.
Dht11 dht22 mit dem arduino uno auslesen anleitung. First of all, including all the required library files. Copy and paste the above codesketch in your arduino ide software. Pic18f4550 microcontroller basic tutorial april 15, 2020. As a bonus, the dht library also works with several other dht sensors such as the dht22, dht21 and the dht11 making it an excellent. Specifically we will focus on the adafruit dht11 and dht22 temerature and humidity sensors. The 3rd library is for the dht11 sensor, it may be installed using library manager in the search box write dht and choose the one from adafruit. The environment is written in java and based on processing and other opensource software. Its accurate enough for most projects that need to keep track of humidity and temperature readings. Interfacing of arduino uno with temperature and humidity. How to use the dht11 with arduino code, circuit diagram. What i mean is, you can use this in anything from home automations to smart watches. Before you can use the dht11 on the arduino, youll need to install the dhtlib library.
Zip file for the newest rob tillaart version recommended. Close the arduino ide and open it again then you will find the library included. Luckily, it is trivial to connect dht11, dht22 sensors to arduino. Arduino humidity sensor using the dht22 pi my life up. Temperature and humidity lcd dht11 arduino project hub. If you followed the previous tutorial then you dont need to download dht11 library. Dht11 is an electronic device which is used to measure the temperature and humidity in real environment. Dht11 temperaturehumidity sensor arduino project hub. Link for the arduino dht11 library at the given link the dht. The espasyncwebserver library is not available to install in the arduino ide library manager.
Ddht11 sensor interfacing with nodemcu using arduino ide. I have placed print statements in the setup section and found. Unlike lm35 this is a digital sensor which has only a single. We will design a device that will be capable of measuring room temperature and environmental humidity. I published this one since there a lots of various versions of the dht11 library for arduino floating around but most of them do not work with the current version of arduino ide.
Open your arduino ide and go to sketch include library manage libraries. In this article, i am going to explain about interfacing of dht11 sensor with esp8266. Enter dht in the search field and look through the list for dht sensor library by adafruit. Ever wanted to know the temperature and humidity around you. Downloads dht11, dht22 and am2302 sensors adafruit. Esp8266 dht11dht22 web server arduino ide random nerd. Open the extracted file and then go to software, doubleclick on arduino and then on libraries. If youre using a dht11 sensor, comment out the line that sets the type. Alongside this, we will be showing you how to use adafruits dht library to talk and interact with the dht22 sensor so that you can easily read both the temperature and humidity from the sensor on your arduino.
How to use the dht22 and arduino to measure humidity, temperature, dew point and heat index. Arduino interfacing with dht11 sensor projectiot123. Install dht11 dht22 library for arduino and solve the problem to. How to use the dht11 temperature humidity sensor with. The second sensor in our arduino uno course is the dht 11. Dht11dht22 sensor with arduino random nerd tutorials. Go to sketh include library manage library and then search for dht11 install the appropriate dht sensor type you are using. These sensors are very basic and slow, but are great for hobbyists who want to do some basic data logging. Dht11dht22 sensors with arduino tutorial 2 examples. Sensor readings temperature and humidity as well as computed values heat indexes are printed to the serial monitor. Dht11 library for proteus arduino interfacing with dht11 sensor.
This project is really simple and shouldnt take us very long. You can upload the following example code to your arduino using the arduino ide. Before you can use an arduino software library, you must make it available by copying it into the correct libraries folder. Refer to the getting started page for installation instructions. By using this arduino library we read the dht module and display the temperature and humidity to the serial monitor of arduino. After that copy the following code in the arduino ide and upload the code.
Dht11 humidity and temperature sensor with arduino. How to use the dht11 temperature and humidity sensor with an arduino. Well cover the lowercost dht11 as well as the dht22 and am2302. Basic setup allowing periodic readings from a dht11 temperature and humidity sensor using an arduino uno development board. The second library is adafruit graphics library which can be installed also from arduino ide library manager. You should have the arduino ide software running at this time.
Dht11, dht22 and am2302 sensors adafruit industries. Arduino with dht11 sensor and st7789 tft display simple. This is a very nice little, low cost sensor which requires only a pull up resistor to vdd. The full code to display the data of the sensor on a serial. Interfacing nrf24l01 with arduino unowireless communication. Dht11 arduino interfacing the engineering projects. It hasall the functions neededto get the humidity and temperature readings from the sensor. They are the steps about how to install library and solve your upload problem with dht11 and dht22 sensor. In real life dht11 can be used at several different places e. In this tutorial, we will be interfacing dht11 temperature and humidity sensor with arduino.
Libraries are a collection of code that makes it easy for you to connect to a sensor, display, module, etc. Simply we will design a digital humidity and temperature meter using arduino and dht11 sensor with the value displayed on lcd. Power the sensor with 5v and connect ground to ground. Get circuit diagram and video tutorial of dht11 with arduino. An arduino library for the dht series of lowcost temperaturehumidity sensors. Interfacing dht11 temperature and humidity sensor with. Once you have the library, just go ahead and extract it to the library folder inside your arduino ide software folder. In this post, we will discuss the complete interfacing of the dht11 sensor with the arduino uno. Using arduino library makes the dht11 project easy. After installing the dht11 library, upload the below code on the arduino board. This tutorial will show you how to use dht11 with arduino. Seeed studio provides a nice open source library for their lcd module which can be installed from arduino ide library manager sketch include library manage libraries, in the search box write grove lcd and install the one from seeed studio.