8000 Raspberry Pi Pico CircuitPython COM port conflict · Issue #10313 · adafruit/circuitpython · GitHub
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Raspberry Pi Pico CircuitPython COM port conflict #10313

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bernard01 opened this issue May 6, 2025 · 4 comments
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Raspberry Pi Pico CircuitPython COM port conflict #10313

bernard01 opened this issue May 6, 2025 · 4 comments
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@bernard01
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CircuitPython version and board name

Adafruit CircuitPython 10.0.0-alpha.4 on 2025-05-05; Raspberry Pi Pico with rp2040
Board ID:raspberry_pi_pico
UID:E6635C08CB228427

Code/REPL

print("Hello)

Behavior

The serial connection to COM7: is dropped.

Description

CIRCUITPY drive is visible.
Console serial connection on COM7: is immediately dropped because COM7: is used by "Standard Serial over Bluetooth Link"
%BOARD_80F4% CircuitPython (80F4:00) (COM7)

I have another board (Waveshare RP2040-Zero) where, with the same software version, the port number is COM14.

I should say that I have Windows 7. Otherwise it seems to work fine.

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@bernard01 bernard01 added the bug label May 6, 2025
@bernard01
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I disabled the conflicting Bluetooth link (COM7) which solves the problem because I do not use that port.

@tannewt tannewt added this to the Third-party milestone May 7, 2025
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tannewt commented May 7, 2025

I have no idea how Windows 7 allocates COM numbers. I doubt we have any influence over it.

@ladyada
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ladyada commented May 11, 2025

this has nothing to do with us, you can manually set the COM port if desired here
https://learn.microsoft.com/en-us/answers/questions/452998/how-to-assign-static-com-port-number-to-a-device
probably a good idea to update to win 10 sometime soon
https://learn.microsoft.com/en-us/troubleshoot/windows-client/windows-7-eos-faq/windows-7-end-support-faq-general

@ladyada ladyada closed this as completed May 11, 2025
@bernard01
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I have upgraded Windows. It was overdue. All good now.

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