Comments on: ESP32: Getting Started with Firebase (Realtime Database)

By: Sara Santos

Sara Santos — Sun, 29 Jun 2025 10:39:43 +0000

In reply to Shannon.

It is now updated.
Regards,
Sara

By: Sara Santos

Sara Santos — Fri, 27 Jun 2025 09:27:46 +0000

In reply to Shannon.

Hi.
Thanks for letting me know.
I recently updated almost all our Firebase Projects because of breaking changes in the library.

It seems the author of the library made more breaking changes. I’ll need to revise all my codes again.

Thanks.

Regards,
Sara

By: Shannon

Shannon — Fri, 27 Jun 2025 05:41:39 +0000

In reply to Shannon.

The above sketch will not compile in Arduino IDE without two defines (using FirebaseClient 2.1.5):

#define ENABLE_USER_AUTH
#define ENABLE_DATABASE

By: Shannon

Shannon — Fri, 27 Jun 2025 04:58:12 +0000

In reply to Shannon. Just realized I installed Firebase ESP32 Client by Mobizt. I've now installed the correct library. The new compile has been running for quite a long time but I will let it run overnight to see if it finishes

By: Shannon

Shannon — Fri, 27 Jun 2025 04:49:12 +0000

Struggling with this firebase demo. First I tried to get it working in VScode/platformio/pioarduino but that entire environment is just a mystery to me. It seemed to upload ok but no activity on the terminal window. So I moved back to Arduino IDE.

After installing the FireBase Client by Mobizt. I copied the code example exactly and changed the personal data to match my Firebase project. However when I compile it gives the error

: fatal error: FirebaseClient.h: No such file or directory
9 | #include
| ^~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1

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

I see that the library is truly installed. I can see the new example sketches related to FireBase. I can see where the library is installed. There are quite a few .h files but none of them are named FirebaseClient.h There is one that is called just Firebase.h. Should I change the include to that file?

By: Dan Pham Le Huu

Dan Pham Le Huu — Fri, 16 May 2025 12:43:35 +0000

Dear Sara,
Thanks for your great tutorial.
I’m encountering an issue with sending and receiving data (almost simultaneously) between Firebase and my ESP32.

I’m using the latest FirebaseClient library for my project.

The callback functions for database.set and database.get work perfectly fine when called independently. However, if I call the .set function first, there’s a significant delay for the .get callback to respond after I change the datachange variable (even though the .set function has completed and the data is already on Firebase). Is this an unavoidable conflict?

I would greatly appreciate your feedback.

By: Sara Santos

Sara Santos — Sun, 27 Apr 2025 09:46:10 +0000

In reply to Al Klein.

Are you referring to this tutorial https://randomnerdtutorials.com/esp32-cam-save-picture-firebase-storage/?

By: Al Klein

Al Klein — Sun, 27 Apr 2025 00:47:38 +0000

In reply to Sara Santos.

“shows how to upload a file to firebase”. You “upload” the file NAME and PATH to the database. You upload the file to the computer’s drive.

Some people think that you should store the file itself in the database, as a BLOB.

By: Sara Santos

Sara Santos — Sat, 26 Apr 2025 10:46:04 +0000

In reply to Al Klein.

Hi.
I’m sorry, but I don’t understand your comment.
In the storage example, we’re storing the file in storage.
Regards,
Sara

By: Al Klein

Al Klein — Fri, 25 Apr 2025 18:25:12 +0000

In reply to Renzo. The smartphone, when set up as a hotspot, IS the router.