Comments on: Control ESP32 and ESP8266 GPIOs from Anywhere in the World

By: Sara Santos

Sara Santos — Tue, 08 Apr 2025 22:48:49 +0000

In reply to Richard.

For something similar using Firebase, you can check this tutorial: https://randomnerdtutorials.com/control-esp-gpios-firebase-web-app/#more-110568
Regards,
Sara

By: Richard

Richard — Tue, 08 Apr 2025 19:12:16 +0000

In reply to Rafael. Hi, good work. I think like update to same database sensor reading etc. Another question, can we use free firebase database to this project?

By: Sara Santos

Sara Santos — Mon, 30 Dec 2024 22:28:37 +0000

In reply to mohammad changizi.

Hi.
Unfortunately, I don’t think we have those two projects combined.

What do you mean by Wi-Fi set-up page? Regards,
Sara

By: mohammad changizi

mohammad changizi — Sun, 29 Dec 2024 15:54:51 +0000

Hello
Thank you very much for this awesome tutorial.
I have seen your other tutorial on “Visualize Your Sensor Readings from Anywhere in the World (ESP32/ESP8266 + MySQL + PHP)”
Is there any other tutorial that combines these two monitoring and controlling at the same time?
I also have another question. How can I add a Wi-Fi set-up page for convenience so that others can also use it?
Thank you very much for all you have done.

By: Abu

Abu — Mon, 16 Dec 2024 14:36:32 +0000

Hi. I find this project very interesting however I have doubts about the hosting capabilities. I need the buttons be refreshed much more often such as 2 times/second or so. What kind of hosting parameters I need to look? Monthly traffic is the only limitation or there are any other kind of problem? Would be better with SQL?

Thanks.

By: Paul

Paul — Thu, 18 Jul 2024 20:07:40 +0000

Hello Rui and everyone,

Very nice project, I am using it to automate my irrigation system.

I have looked thru many of the comments but I can’t figure out how to invert the output of the control, ie, when the button is “ON” the output is LOW. My wifi relay board (ESP-01S) turns on the relay with a LOW, not a HIGH.

I could probably figure it out but my brain is fried.

Thanks to anyone who could help me.

Cheers

By: mohammad

mohammad — Fri, 19 Apr 2024 14:42:31 +0000

Hello. I solved the problem myself. The problem was that this function was not defined in advance, which we must introduce before the setup() function, as below:
String httpGETRequest(const char* serverName);

By: mohammad

mohammad — Fri, 19 Apr 2024 05:08:28 +0000

Hello. Thank you for this great and wonderful project. I was always looking for such a project. My problem is when the project is compiled, it gives me this message.
src\main.cpp: In function ‘void loop()’:
src\main.cpp:41:22: error: ‘httpGETRequest’ was not declared in this scope
41 | outputsState = httpGETRequest(serverName);
| ^~~~~~~~~~~~~~
*** [.pio\build\nodemcuv2\src\main.cpp.o] Error 1

Please help me with the project, I really need it

By: B

Fri, 29 Mar 2024 02:00:59 +0000

In reply to Rafael. Yes, this would be great to do, I could really use it, like a response that a relay is on it turns a "LED" on the web page next to switch green if on etc..

By: Robert

Robert — Wed, 06 Mar 2024 10:44:40 +0000

Hi Rui and Sara,

Would long polling be suitable for this project?
Just wondered if you had any examples using this technique.
BTW I have followed a number of your projects. Thanks for making them clear and concise!

Best Regards

-Robert