@kuriko So you are saying it is a software issue rather than hardware which seems to be the case to me. It would be really helpful to have access to the source for the unit classes so I could add functionality through inheritance.

The "invalid Timer number" error occurs because the IRUnit is trying to use a hardware timer that's either unavailable or already in use on your M5 device. ESP32-based boards have limited hardware timers (usually 4, IDs 0-3), and the default timer allocation in the IR library might conflict with other system functions.
Solution:Explicitly specify a valid timer ID when initializing the IRUnit. Modify your setup code to include the timer_id parameter with a value between 0-3:
ir_0 = IRUnit((1, 2), timer_id=1) # Try timer IDs 0, 1, 2, or 3

Troubleshooting Tips:

Test different timer IDs (0-3) if the first attempt fails
Ensure no other libraries/features are using the same timer (e.g., PWM, other sensors)
Verify your M5 device's firmware is up-to-date via UIFlow2

https://chat.m5stack.com/

@Handcannon Well the Core and Core2 will no longer compile in Arduino IDE with the latest board def, 3.12 and M5Stack says it is a 'me' problem and recommend I use an earlier revision.

like with firmware adds new but often stops something old to work.... you can always load old version if something doesnt work

@kuriko

Thank you for your response.

I did this step by step.

Deleted

record.json res.json

After pushing the code, the problem remains the same., error 403

So I Reburn the Core2.

After pushing the code, the problem block on Sync screen, error 403

I think there is a problem accessing the file bucket on Alibaba.

Or else the load transmitted by mqtt to the device is not what is expected for res and record json.

Similar of:
https://community.m5stack.com/topic/7652/uiflow-2-0-sync-error

@phillipsback

Sorry!! My Bad.
[LVGL8.4] lv.get_target() --> [LVGL9.0] lv.get_target_obj()

slider : Still odd.

** testing LVGL python examples in the middle way. So far so good.

@hacxx Dear hacxx, Thanks for your help.

@PavelNDC Public (red) means that's it's not connected. normally this is an issue with the M5Stack server.

@ph0sgene At present, only the function information has been input into LLM, so it may not have the ability to plan programs, and explaining functions may be more useful

Hello @peolsolutions

you are starting to confusing me.

Your posts often are quite vague and not specific to M5Stack hardware / software.

Also why would you post a very similar response again about a month after your last one? Doesn't make sense to me.

Care to explain you reason(s) for doing that?

Thanks
Felix

There was an update for the UI and now i can burn an image to the AtomS3. Everything fine and thanks for your support and help!

@ajb2k3 Thanks.

@gwky55
Hi,
Example in MicroPython:

... def setup(): global wlan, http_req M5.begin() wlan = network.WLAN(network.STA_IF) if wlan.isconnected(): print('Connected') http_req = requests2.get('https://test/test.php?val1=aaa&val2=bbb', headers={'Content-Type': 'application/json'}) print(http_req.status_code)

And UI Flow2
http GET.png

9d225eb7-4ca3-472e-84ba-5d7b31421c06-截屏2025-06-08 10.38.39.png
Finally it works on UIFlow2.截屏2025-06-08 10.38.39

@ajb2k3 There was no previous firmware that I installed. This was an out-of-the-box installation. I downloaded the latest update - I think 2.2.7 - and that's when the problem occurred.
Also, when I went to press burn, there was no opportunity to erase before burning.