Arduino Project: Temperature and Humidity monitor Tutorial with DHT11 (or DHT22) sensor LCD shield.

Arduino Project: Temperature and Humidity monitor Tutorial using DHT11 (or DHT22) sensor and LCD shield.

In this video we are building a Temperature and humidity monitor, using an Arduino Mega, an LCD Display Shield with a DHT11 sensor. If you have a DHT22 sensor, the wiring is exactly the same.

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[decem_unosquattro]

Ah very good explanation! I've done this project years ago still I like to build it again with DHT22.

[tbmtech]

This is great!!! I made it work with an 20X4 LCD screen with an I2C 2 pin connection and an Arduino UNO. the only thing I had to modify was to add this lcd.setBacklight(HIGH); right at the begining of the void loop command. Thank you!

[Benthusiast]

Hey at last, Found something that works, just like it says on the tin, Great Tutorial, Thank you.

[TriHakniPutra]

you right man, after i searching and reading a blogs, measuring humidity was quiet hard. and try comparing with dht22 or another sensors, the different was so far!

[AAI]

OMG thanks man. You really helped me in my arduino projects.

[alexgoogle]

works, only sometimes says that you can not read the data from the sensor "Failed to read from DHT sensor!". The resistor is set to 4.7 - did not help. Used DHT-22

[dztronic]

Thank you very much Man for your sharing..it helped me a lot. that was a good job.

[TraceWaters]

I got this working, but have a bad sensor. Will this code work for the dht22 as well?
I figured if I was getting another I might as well get the one with better range.

[asharma]

hey bro! ur videos r can u pls tell how to use a separate humidity, temperature and pressure sensor??

[sreekumarannair.k]

My name is reghu I like your video too

[fpt]

Hello . Thank you for your nice explanation.
I have a question:
Are the sensors like LM35 and DH11-22 accurate and reliable?
Are it need to calibrate?
thank you

[juanbriones]

WORKS EXCELLENT ..THANKS BUT IF I WANT IN FARENHEIT..

[olafsmallspruce]

I have a Arduino Uno and don't know which pins to connect on the lcd module. A connection diagram wolud be nice at least in the other tutorials.

[mariotoplek]

hello! can this be used for controll temperature and humidity using a relay board?
how to set up code that you can adjust parameters via buttons on LCD board?
i planing to build one for my greenhouse. thanks in advance. regards, Mario

[udith-pztv]

Outdoor DHT sensor doesnot read minus values at winter.
Please, how can we fix the temperature from -50 to +50

[vedgarge]

Hi. Thanks for the code. However, NAN is getting displayed on lcd. Pl can you tell the solution to solve this problem.?

[ayeshaa]

can you help me about a temperature controller using atmega16 and DHT11 through keypad and lcd?

[mehditarabi]

hi i have a question . i need to implement Temperature and humidity monitor, on atmega2560 with C language. do you think this source code will help me?

[zeczec]

hi, does the lcd is enough to display rain, and dht data? and how is the code? im new to arduino. hope u can guide me. tq.

[RandomTorok]

I am trying to get this working on an Esp32 wroom. The ESP has built in wifi and Bluetooth so I can send the data gathered to another computer.