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Adafruit Matrix Portal - Moon Clock error
Using the latest version of CircuitPython (10.0.3) and the latest version of the code.py from the main branch, I'm seeing an error "AttributeError: 'MoonData' object has no attribute 'end_utc_seconds' attributed to this line of code:
https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/Matrix_Portal/Matrix_Portal_Moon_Clock/code.py#L335
Fetching from the weatherapi via a browser (https://api.met.no/weatherapi/sunrise/3.0/moon...) shows a successful response. Perhaps the structure of the data has changed recently?
This error started happening this morning for me.
Also noted in https://forums.adafruit.com/viewtopic.php?t=221085.
We have two different moon phase clocks: https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/main/Matrix_Portal/Matrix_Portal_Moon_Clock https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/QT_Py/NeoPixel_Moon_Phase_Clock
They are using different API's for the moon phase. #3143 proposed a computational approach that does not use an external API: it only needs a time. Perhaps we should switch to that, since we frequently are chasing API's.
FYI @BlitzCityDIY
I did come across this stackoverflow discussion a while back https://stackoverflow.com/questions/2526815/moon-lunar-phase-algorithm.
https://rhodesmill.org/skyfield/ seems to be well recommended.
I have two different versions of the moon phase clock. Both failed to retrieve the json files. I was seeing URL 509 errors. I think this a SSL certificate issue with the MatrixPortal Network library. Using old Certs. If you have a ESP32-S3 board instead of M4 you can get the wifi library working to a point.
Sent from Mars
From: Ari Braginsky @.> Sent: Tuesday, November 11, 2025 5:31:24 PM To: adafruit/Adafruit_Learning_System_Guides @.> Cc: Subscribed @.***> Subject: Re: [adafruit/Adafruit_Learning_System_Guides] Adafruit Matrix Portal - Moon Clock error (Issue #3160)
[https://avatars.githubusercontent.com/u/53710?s=20&v=4]lemonkey left a comment (adafruit/Adafruit_Learning_System_Guides#3160)https://github.com/adafruit/Adafruit_Learning_System_Guides/issues/3160#issuecomment-3519319821
I did come across this stackoverflow discussion a while back https://stackoverflow.com/questions/2526815/moon-lunar-phase-algorithm
— Reply to this email directly, view it on GitHubhttps://github.com/adafruit/Adafruit_Learning_System_Guides/issues/3160#issuecomment-3519319821, or unsubscribehttps://github.com/notifications/unsubscribe-auth/AJTJEZDFYDYMH2FRSTZCIYT34J5VZAVCNFSM6AAAAACLXLK64SVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKMJZGMYTSOBSGE. You are receiving this because you are subscribed to this thread.Message ID: @.***>
If this is a cert error then you can use a more recent list of root certs by updating the firmware on the AirLift processor on the Matirx Portal M4: https://learn.adafruit.com/adafruit-matrixportal-m4/updating-esp32-firmware. On the Matrix Portal S3 the root cert list is in CircuitPython. 10.x.x has a full and recent root cert list.
If this is a cert error then you can use a more recent list of root certs by updating the firmware on the AirLift processor on the Matirx Portal M4: https://learn.adafruit.com/adafruit-matrixportal-m4/updating-esp32-firmware. On the Matrix Portal S3 the root cert list is in CircuitPython. 10.x.x has a full and recent root cert list.
I am using CircuitPython v10.0.3 btw.
I am using CircuitPython v10.0.3 btw.
Which board are you using?
The Matrix Portal https://www.adafruit.com/product/4745
Hi all i am using the Esp32-s3. The moment the matrixportal moon phase program reaches the fetch command it spits out a 509 error message from weather api. I am using cp 10.0.3 . Are you say everything is working with the learn guide code sample?
Sent from Mars
From: Ari Braginsky @.> Sent: Wednesday, November 12, 2025 10:54:40 AM To: adafruit/Adafruit_Learning_System_Guides @.> Cc: ThinMan @.>; Comment @.> Subject: Re: [adafruit/Adafruit_Learning_System_Guides] Adafruit Matrix Portal - Moon Clock error (Issue #3160)
[https://avatars.githubusercontent.com/u/53710?s=20&v=4]lemonkey left a comment (adafruit/Adafruit_Learning_System_Guides#3160)https://github.com/adafruit/Adafruit_Learning_System_Guides/issues/3160#issuecomment-3523171439
I am using CircuitPython v10.0.3 btw.
Which board are you using?
The Matrix Portal https://www.adafruit.com/product/4745
— Reply to this email directly, view it on GitHubhttps://github.com/adafruit/Adafruit_Learning_System_Guides/issues/3160#issuecomment-3523171439, or unsubscribehttps://github.com/notifications/unsubscribe-auth/AJTJEZF3BLBPJAYED47RXWT34NX6BAVCNFSM6AAAAACLXLK64SVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKMRTGE3TCNBTHE. You are receiving this because you commented.Message ID: @.***>