How to Set Up the DHT11 Humidity and Temperature Sensor on an Arduino

still using this vid in 2021! lol!

works fine for me using Uno with serial monitor. However, have yet to try out the LCD version. Bravo.

I ended up shorting my Humidity sender due to an error I made, which could have been avoided with a resistor, now all my readings are -999, maybe adding a resistor next time would do... Please be careful about how you wire it

Hello, how can I use these data and make a excel graphics in real time?

bro i got some problem when its read second time its like 999
and then its back to normal
so its like
temperatur 32
humidity 70
temperatur 999
humidity 999
temperatur 32
humidity 70

Why do we connect the sensor to a digital pin? Dont we have an analog signal from the sensor? Im confused

Am I the only one getting the error where the screen starts displaying random gibberish after like 20 seconds

I'm using the exact same program with the exact same library having connected the 4-pin sensor exactly the way it's connected in your site.For some reason both the temp and humid readings are -999.Can you tell me why?

Hey thanks for this great video!!
I’ve added a second relay and if and else statements and an additional output pin for a total of 2 commands but can’t get the second output pin to energize the second relay. Any suggestions?

Hi it read 33 degree celsius. but supposedly the real temperature of my room when i check using room thermometer is 30 degree celsius. How do I adjust it?

Hello. I need a block diagram of this project. Can you help me?

Nice Video Sir!, btw hows the arduino Sir? is it still working ? Iam confused whether i should choose arduino or plc for controlling air temperature in farm and turn on the spray or other stuffs if it is too hot

Anytime I try to verify the code,it just gives me an error code on the first line: “compilation terminated
dht.h no such file or directory

Yes it is

Thanks man

Hey there, thanks for the video.

I have some problems, when I copy the code and run my dht11 is overheated pretty quickly and on the serial monitor it only show -999 for both temperature and humidity.

lindo

my lcd has 4 pins

Can this work without the potentiometer?

For anyone working on this. If you set it up with the LCD like in this video, I used a 2k ohm resistor at pin 3. I tried to follow his tutorial with the potentiometer, but mine was broken.

Is there ANYONE who could tell me to do this exact thing with the bmp180?

hello, sir why connecting the dht11 signal wire to the digital pin instead of the analog pin?
i know that the digital pin gives just two values 1 and 0.

Hi.... is there one sensor for both Temperature and humidity ??

what if i want to power it by a battery what changes will be added to the board

Thanks by thousand dewde... I was stuck on the step to display the temp and the humidity on lcd and finally succeed retrying all the plugs now it works !!!!!!

You deserve a thumb up :)

gracias

Hello brother this circuit make with volt and current meter means volt amp Watt and temperature show on one display for 5v
Please make a More video

worked! I had a problem as it was my first project. asked me to change port and I randomly picked a wrong one. So once I changed it its working normally! thank you. easy for a first project ;)

I just had the same issue if the delay time is too low it will blink 999 on the values. I set it to 1500 and its working

I got confused with using "dht.h" instead of <dht.h>.

Is your video green screened

What resistors were used for the LCD display? Thanks

mine is not working its showing -999 for humidity and lcd display

where the lcd library sir?

We're getting zero for both values...what to do??

the humidity and temp isn't showing up on my serial monitor

Niceeeeeee

Quick question, whats with the chk variable in the code? Ive been digging it AND the library and i dont see it referenced again anywhere

Hi,is it ok to use the SDA and SCL pins in the lcd?

my lcd display is flickering and idk what to do please help

Error: 13 INTERNAL: Library install failed: archive is not valid: multiple files found in zip file top level Please Helppp!

not working display a !

Thank you so much from Italy! My thesis can now progress. Your help is greatly appreciated.

relative humidity is not % h2o

everything worked except that the temp and humidity are always at 0

error error error