DHT11 Temperature & Humidity sensor with Arduino - Tutorial

Let's read some temperature and humidity with the help of this DHT11 module and an Arduino UNO.

[funguslars]

For everyone only reading 0% and 0 degrees:
Some DHT11 sensors have the signal pin on the left. Meaning you should connect it like this:
Connect the negative pin (right) to GND.
Connect the positive pin (middle) to 5V.
Connect the signal pin (left) to pin 7.
In the code change DHT.read11(dht_apin); to DHT.read11(7);

Hope this helps 😁

[korbano]

Everyone keep in mind that he used a sensor mounted on a pcb. If you have just the bare sensor, you need a resistor across the analog and 5v pins or it won't work correctly. His already had this resistor on the pcb.

[irishRocker]

I need to look at the datasheet for this. It shows humidity going from 63% up to 75% after only a few seconds. Seems like a large drift in a short period of time.

[electronishq]

Hi need help I am getting zero for both temp as well as humidity. Tried all possible connections with this code. I have 3 pin dht11. What could be the possible reason????

Need help

[Simon-nxsc]

For anyone with the ERROR: 'DHT.h' there is no such file:
Change DHT to dht (small letters) in the beginning of the file.

[niwashiniapsivasangaranmoe]

It helps me for my robotic project thank you.

[theIfrit]

I am not getting any errors but the Serial Monitor only gives me 0, 00% Humidity and 0 C. The Library must be broken somehow

[misbah]

after adding library, it also says error

[alexlototzky]

the stability of the readings from your sensor seem to be very erratic!

[seanschuffert]

'dht' does not name a type how do i fix this?

[cadudatoros]

Hey Brainy, super easy and fast! thank you, if you allow me to say something, there is a huge difference of volume of sound between the start of video and in the middle. thanks again!

[shineratti]

I check my Arduino library and there is no such file as DHT or dht. what should I do?

[FSchack]

I'm a bit confused, the DHT11 is supposed to deliver a digital reading, not analog?

[YD_.]

For whatever reason, the temp and humidity both keep showing only zero

[priyankakalena]

my output for temperature and humidity both are -999 always.. can u help??

[AlexTechProjects]

I am impressed - Your videos are incredibly impressive and genuinely helpful😀

[MegaBigboss]

Nevermind, everything has worked properly. However, why does it always give me values of 0 for temperature and humidity ?

[jayeshbrahmkshatriya]

Can you please include library properties? I want to code it in arduino droid for Android. It asks for library.properties

[m.iinnovations]

thank you. it worked for me nice and well. thankyou for the library also

[arunsworld]

the code is correct. Connect the data pin to A0 on the Arduino Uno Board.