05 Firebase Realtime Database + ESP32 | How to save sensor data & read data to control devices?

In this video, Joed Goh illustrates the step-by-step process of saving and retrieving data to and from the Firebase Realtime Database with ESP32.

Table of Contents:
00:00 Introduction
01:00 Materials and Circuit Connection
02:40 What is Firebase?
03:31 Creating Firebase Realtime Database
07:45 Arduino Firebase ESP Client
12:28 Saving sensor data from ESP32 to Firebase RTDB
20:14 Reading data from Firebase RTDB to ESP32
24:03 Circuit and Programming Challenge

References:

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[shakauthossain]

Bro,
your tutorial makes the thing nothing but easy. ❤
I was in the R&D phase for firebase system for last 3 days with no clue but you make it much easier.
Really appriciate it.

[SwayamSahoo]

Thank you very much, it works now
Was trying for around 8 hours, with different libraries and clients, and none of them worked, but finally, in the end, this works

[freitagnachmittag]

Very helpful video. If you have problems by compiling the scetch please mind that the LEDC declaration / API was changed in the latest version (ledcSetup and ledcAttachPin is now ledcAttach).

[Infinity_Dils]

Really It's working 😯😯
I tested for ultrasonic sensor.
Thank you very much.
❤ God Bless You.

[KartikeyaSaxenaJainKSJ]

This is the first time I’ve seen a good firebase Arduino tutorial video.

I liked your style. Will come back for more

One tip for either you or google bug seeking bots. Viewing video on iPhone 14pro or any device with camera island basically acts like a bar that hides all the info behind it. Such as variable declaration or any details that would be necessary.

So either make a band on side that shift your ide screen to right. Or google this one is for you. Turn on screen rotation on both sides. It’s embarrassing for you qa team and product managers who can’t see a ux flaw.


Otherwise kudos to the maker of this content. Good job.

[sumeetdubas]

I really thank this guy for this video
From my depth of heart ❤❤ cause literally for 3 days I was like crazy mad on this firebase and finally I did it because of this guy

Thank you from the depth of my heart 🙏🙏👍👍

Hats of you 👏👏

[attiqurrehman]

Excellent work dear, my suggestion is, include other option tutorial such as google account linkage etc. thank you

[MichiCho]

Maraming salamat sir! laking tulong nyo po sa capstone namin.

[diegoalejandrodiazsilva]

Hi, Thanks for the tutorial, it's been really helpful. i would like to know if the difference in milliseconds could be set to greater than 1000 ?

[manivannansubramanian]

Good morning sir, I am getting this error. Could you please help me? fatal error: wifi.h: No such file or directory
compilation terminated.

exit status 1

Compilation error: wifi.h: No such file or directory

[indikaudayasaranga]

Salamath po for your great explanation. So profitable

[Kitto]

What will be the difference in the IDE code to send to Cloud Firestore instead of RTDB?

[hansiehertzog]

I need to retrieve data from firebase to Esp32. The authentication works and posting data works but I need to read data for signed in user

[laviniamaria]

Very educational video congratulations, when I'm running the code it keeps giving a problem in the function ledcSetup(PWMChannel, freq, resolution); and ledcAttachPin(LED1_PIN, PWMChannel); it says that the variable was not declared correctly, what could be going wrong? and I'm also unable to see the sensor data in the database. If you could send the code it would be a great help.

[richiejohn]

I love asian people teaching. They put more effort in video. Thumbs up.

[VedantSutariya-ms]

I have problem in read the data from the firebase's real time database. Only string is readed properly integer and boolean type is always readed as zero and false respectively and sometimes boolean type is not readed. Pls solve my problem. I have written the exact code and followed the exact all steps which you have followed.

[markangelodizon]

Good Day sir,

Ask lang po kung same method rin po kaya siya sa Raspberry Pi 4 ??
Thanks in advance po

[JL-rxbz]

GREAT TUTORIAL!
Concise and very valuable! Just shows how knowledgeable you are in this matter!

[antoniesuciu]

Having an API key on a firebase project implies adding an app. Can you have an API without adding an app?

[ramavm]

I need help. I see readings in the seiral monitor very quickly. I connected my computer to the same network and the password I put in the code. I put the link and API key in the code correctly, but it shows me null in the firebase. What is the problem? Are there platforms through which we can communicate with you?