Comments on: Raspberry Pi Pico W: Asynchronous Web Server (MicroPython)

By: Sara Santos

Sara Santos — Thu, 04 Dec 2025 15:26:55 +0000

Ok.
Thanks for the info.
If I find something, I’ll update the tutorial accordingly.
Regards,
Sara

By: Jose Barbosa

Jose Barbosa — Wed, 03 Dec 2025 15:42:50 +0000

Thank you for the reply, Sara.
Yes the code works fine. This is only an intermittent issue, may work fine with many messages going through and then get one error. Could be a few hours fine and then…
I tried catching the issue with a try … except and it seems to solve the problem. I can log it and continue operation normally.
But if you do come across any information on this issue, please share.
Thank you very much again.
Jose

By: Sara Santos

Sara Santos — Wed, 03 Dec 2025 15:03:05 +0000

In reply to Jose Barbosa.

Hi.
I just tested the code and it is working as expected.

Do you have a Raspberry Pi Pico W – it is crucial that you have a W model, otherwise it doesn’t support Wi-Fi.
Additionally, when burning micropython firmware, make sure you select the option for the W model so that it includes Wi-Fi support.

Regards,
Sara

By: Jose Barbosa

Jose Barbosa — Sat, 29 Nov 2025 16:59:07 +0000

Hi Sara,
I have used this tutorial as a base and wrote some code using asyncio that has been working fine.
But from time to time I get the error:
OSError: [Error 104] ECONNRESET
And I have read about some possible issue with micropython and the wifi support, possibly needing an upgrade.
Do you have any information about this error you could share?
Thank you

By: Rukbat

Rukbat — Thu, 21 Nov 2024 18:16:22 +0000

In reply to Raimund Maier. The server requires a web browser to communicate with it, so run any (graphical) web browser on the client Pico W. (The client is running only 1 task - a web browser.)

By: Sara Santos

Sara Santos — Wed, 13 Nov 2024 11:15:11 +0000

In reply to dan m.

Hi.
Thanks for your comment.
At the moment, we don’t have any web server tutorials for the Pico using Arduino IDE.
Regards,
Sara

By: dan m

dan m — Tue, 12 Nov 2024 17:40:10 +0000

In reply to dan m. I should clarify, sockTerm uses a dedicated standalone ESP32, and interfaces to my various projects via Serial. So I can use it anyplace you might use an FTDI module, except the data is sent wirelessly.

By: dan m

dan m — Tue, 12 Nov 2024 17:36:20 +0000

Hi Sarah and Rui. Thanks once again for all the great tutorials. I’ve purchased 2 or 3 of your online books and used several of your ESP32 webserver tutorials to launch my projects. :-).

The ESP32 websockets tutorial was especially useful, as I used it to write sockTerm, which is basically a WiFi Terminal that I can plug into any of my projects and immediately control them just like using the Arduino IDE Terminal!!

I have just ordered a couple of Pico-Ws to play with, but I don’t do Python. It would be nice if you could write an async webserver tutorial for the Pico-W, in “C”. Thanks.

By: JMH

JMH — Sun, 08 Sep 2024 10:10:02 +0000

Hi Sara and Rui,

It seems there is an error on the schematic : the blue wire is not at the right place…

By: Matt

Matt — Fri, 30 Aug 2024 04:30:53 +0000

Thank you so much for this! I have been going crazy trying to solve almost exactly this problem for the past couple days. I had basically given up before I tried one more google search and found this. I have never used asyncio before, but I have used Threading (which I’ve found is problematic on the Pico) I read all the asyncio stuff but was having a hard time understanding it and getting it to work. This is a great example.