Monitor Room Temperature Remotely with Arduino & MQTT

Temperature monitoring is essential for keeping your home, vacation rental, or RV safe, comfortable, and energy efficient. There are lots of commercial solutions, but you can also build your own using a cheap microcontroller board, a temperature sensor, Arduino, and an MQTT broker.

---

#garyexplains

[robdavidowitz]

Excellent tutorial👍
None of the unnecessary American style waffle.
Straight to the point.

[FreeTheUyghurs]

Check out the Hestia Pi project as well. We have an open source pi-based thermostat you can buy or print yourself.

[munocat]

This was a prefect timed video, I am working on such a project, I will be using a RPi pico w with a BME680

[thaernejem]

Love it! First time I’m aware of this kind approach. Thanks Gary!

[b_dawg_]

I'm actually working on a similar project right now! But I'm using the RP Pico W, DHT20 temp/humid sensors, and I'm going to host it on an Ignition server running on my RP4 with a neat touch screen display 😎 I was thinking about using MQTT as my communication method so this video (and your one about MQTT specifically) is really helpful! Thanks Gary! 😁

[michabarnas]

Perfect timing for a tutorial I wanted, nice video, thanks!

[bozotheclown]

Mate top notch explanation.
I have been making an electronics project and told we use this sort of data transfer and know nothing about it.
You just walked that example beautifully.
All the best from Australia.
==BOZE==

[byavarsi]

Wow! Thanks Gary.
Was searching for a similar device since a week.

[MarkKeller]

GARY!!!
GOOD AFTERNOON PROFESSOR!
GOOD AFTERNOON FELLOW CLASSMATES!
Stay safe out there everyone!

[clipje]

Dear Gary, Thanks. nice explain. Does somebody have any advice on a nice MQTT Panel for IOS?

[ecahbella]

can i use this for landslide monitoring using arduino nano 33 iot?

[gianlucaminervo]

Hi, thank you so much for this tutorial!
I have a question to ask, I noticed that if I don't keep the app in the background in the phone it doesn't update the data sent from the esp, so is it normal that I have to necessarily leave the app in the background in the phone to constantly receive the temperature and humidity data? (I am always using IoT MQTT Panel as the app). Thanks for any reply and sorry for my poor English

[letrainavapeur]

Seems a lot of code compared to Micropython but great to see how you have tacked it.
It would be very useful to see how you would make this available on the internet when you have the broker running on a Raspberry pi in the home, I currently use Wireguard to access it.

[ehoworka]

Please post your code SOMEWHERE... Thank you for the video.