"Controls" produces a board disconnection

[ngarcia-font]

Problem:

In the PyControl GUI, when a task is loaded and you immediately clicks on "Controls", this error appears:

_Error: uncaught exception of type: <class 'AttributeError'>

Disconnected from board._

Steps:

1. Open the GUI, go to "Run task" and connect to the board
2. Select a task. It can be any task from the 'example' folder that has variables (e.g. button_named_imports).
3. Upload the task.
4. Click on "Controls".
5. A new window with the variables appears and this message is displayed:

Error: uncaught exception of type: <class 'AttributeError'>
Disconnected from board.

Comments:

This error only occurs if the steps are followed as indicated above. If one task is uploaded and run and "Controls" is selected during or after finishing the running, the error does not occur and the controls window opens.

Information:

PyControl board:
-Micropython version: 1.261
-Framework version: 2.0.2
GUI: pyControl v2.0.2
OS: macOS sequoia version 15.7.1 (also observed in Windows).

[alustig3]

Is there anything in your error log that you can share? View->error log or cmd+e

[ngarcia-font]

Hi Andy. It happens with all the tasks with variables. For example, the button_named_imports which figures in the "example" folder that comes with the package by default, generates the same issue. When I press cmd+e this is what I get:
2025-10-29 17:54:29,547 Traceback (most recent call last):
File "/Users/ngarcia/Desktop/code/source/gui/dialogs.py", line 35, in showEvent
bool(board.sm_info.variables) and (board.framework_running or (board.timestamp == 0))
AttributeError: 'Pycboard' object has no attribute 'timestamp'

[alustig3]

Great. Could you please attach your pycboard.py file. You should be able to drag and drop the file into this github issue comment. the file is under source\communication\pycboard.py

[ngarcia-font]

pycboard.py

[alustig3]

Hi Nuria,

Thank you for finding and reporting this bug!

Please delete your current pycboard.py file. Download and replace it with this pycboard.py

Please let me know if that works for you.

[ngarcia-font]

Hi Andy,

Thank you very much. I did it and I have the same error:
2025-10-30 15:55:43,441 Traceback (most recent call last):
File "/Users/ngarcia/Desktop/code/source/gui/dialogs.py", line 35, in showEvent
bool(board.sm_info.variables) and (board.framework_running or (board.timestamp == 0))
AttributeError: 'Pycboard' object has no attribute 'timestamp'

[alustig3]

please quit pycontrol, open it back up reload the pycontrol framework onto your pyboard.

To do this, on the run task tab

• connect to your board
• click config->Load framework

sorry I forgot about that. let me know how it goes

[ngarcia-font]

It worked!!!!! Thank you very much =D

[alustig3]

great!