Comments on: Getting Started with Raspberry Pi Pico 2 and Pico 2 W

By: Bert Oudshoorn

Bert Oudshoorn — Wed, 22 Apr 2026 17:28:13 +0000

RP2040 offers better real-time performance through PIO and dual cores dedicated to your code (ESP32 shares cores with WiFi stack). The PIO looks beter than RMT(on ESP32). Did you find a PIO example for the Arduino IDE?
And selecting core0 or core1 seems to be easier:

zbotic.in/waveshare-rp2040-board-arduino-ide-setup-and-projects/

By: Michael

Michael — Mon, 12 Jan 2026 11:03:30 +0000

In reply to Henrik.

Hi
I have the exact opposite error: when uploading firmware in Arduino IDE i get the following error “Compilation error: exit status 0xc0000409”, but it works fine in Thonny. I believe the reason is that the environment variable is not set correctly, it should point to the same python.exe instance when using either IDE…….

By: Henrik

Henrik — Fri, 27 Jun 2025 20:38:15 +0000

Hi again
Right now I have given up using Raspbarry pi pico to learn micropython and have bought Arduino Nano RP2040 Connect which can run micropython, and Arduino LAB for micropython to program Nano.
thanks

By: Sara Santos

Sara Santos — Fri, 20 Jun 2025 09:05:28 +0000

In reply to Henrik.

Hi.
That’s very weird…
After uploading micropython have your tried clicking on Thonny IDE Stop button multiple times?

Regards,
Sara

By: Henrik

Henrik — Thu, 19 Jun 2025 19:59:45 +0000

Hi Thanks for the answer.
I have tested with 3 different usb cables and when I upload micropython firmware from Thonny to raspbarry pi pico 2 and 2w the port disappears, it’s the same error.

But if I use Arduino IDE 2.3.6 and connect with the same cables and the same two picos and upload a blink sketch everything works fine.

Maybe it’s the Thonny program that makes the error???
Thanks

By: Sara Santos

Sara Santos — Tue, 17 Jun 2025 20:37:33 +0000

In reply to Henrik.

Try clicking on Thonny IDE Stop button afterwards.
Also, make sure that you’re using a good USB cable.

Other than that, I’m not sure what might be causing the issue.

Regards,
Sara

By: Henrik

Henrik — Tue, 17 Jun 2025 17:34:55 +0000

In reply to Sara Santos. Hi It is when I upload micropython firmware that Thonny makes the error

By: Sara Santos

Sara Santos — Tue, 17 Jun 2025 09:07:09 +0000

In reply to Henrik.

Hi.
What do you mean by upload micropython?
Are you uploading a specific code or are you just uploading micropython firmware?
Regards,
Sara

By: Henrik

Henrik — Mon, 16 Jun 2025 20:07:40 +0000

Hej
when I upload micropython to my raspberry pi pico 2 with Thonny, Thonny cannot find the port after 10 seconds

It works fine in Arduino IDE with c++ programming, but I would like to learn how to use micropython or is there another editor with micropython I can try?

By: Jose Serena

Jose Serena — Mon, 19 May 2025 11:43:59 +0000

In reply to Tony.

The Pico has a few minor advantages over the ESP32 but the main one is that it has 8 (Pico) or 12 (Pico 2) state machines that can execute an instruction per clock cycle independently of how busy is the main CPU.
This is invaluable if you need high speed I/O devices like a Signal Generator, Frequency Meter or Logic Analyzer. They will be far more superior that the ones with ESP32.
Plus, you can overclock a Pico to more than double its nominal frequency.