<![CDATA[ESPNOW is broken]]>Hi,
I'm using ESPNow for a professional project since 6 month. It has been quite difficult to use because of its weak implementation in UIFlow. Data lags, connexion loss, duplex not working well and, the worst, the need to use a wifi hotspot (wifi router) to boot the M5StickC & M5Core (blocked on black screen if no wifi around), which defeat most of the interest of this protocol.
But, after all, it was working one way, quite reliably with a router around.
2 days ago, working on the project again after 2 month of work on others, I discovered that ESPNow have been completely rebuilt in UIFlow. And that it completely broke the work of my project (a quite costy and important for the company am working for)...
0_1666364946184_Capture d’écran 2022-10-21 à 17.08.29.png
I didn't find any explanation about that anywhere in the community or wiki (but maybe somebody could tell me where to find some). Then I tried using the new ESPNow examples in UIFlow : Master & Slave (the manual haven't be updated sadly). And no success. Error everywhere in the examples. Black screen. These examples haven't been tested it seems.
0_1666365065679_Capture d’écran 2022-10-21 à 17.10.45.png

My question is : how could I manage to make this project working again with ESPNow new implementation in UIFlow ? Did somebody succeed to use it again ? And more, are M5Stack engineers aware of this problem ? Are they / you working on it at the moment ? With the lack of documentation and working examples, it cost me a lot of time and maybe for nothing.

]]>https://community.m5stack.com/topic/4739/espnow-is-brokenRSS for NodeWed, 29 Apr 2026 02:00:00 GMTFri, 21 Oct 2022 15:12:43 GMT60<![CDATA[Reply to ESPNOW is broken on Mon, 31 Oct 2022 17:17:52 GMT]]>Hi ajb2k3 & teastain,
thanks a lot for your advices.
I will look at micropython side but I'm very concerned by the fact that the UIFlow blocks I used have been deprecated without notice. I'm on a very bug hurry now.
I went back to V1.9.8 firmware on my M5StickCPlus and M5Core and everything is working again now. At least temporarily.
Have a good week

]]>https://community.m5stack.com/post/19174https://community.m5stack.com/post/19174Mon, 31 Oct 2022 17:17:52 GMT<![CDATA[Reply to ESPNOW is broken on Fri, 21 Oct 2022 17:56:37 GMT]]>@starcrouz Hi, I too had an ESPNOW fully operational application completely stop working (communicating) about two months ago.
It is programmed in Arduino IDE, using C, C++. I had just updated libraries and made a small change and after re-uploading the sketch, it stopped communicating.
Here is my ESP_NOW tutorial on GitHub:
https://github.com/teastainGit/ESP_NOWpeer2peer
It is Arduino IDE, not UIFlow.
I went over my code line by line and found a small error that was acceptable two months ago...but not anymore.
So this means that they changed ESP_NOW on us!
Hope this helps, Terry

]]>https://community.m5stack.com/post/19060https://community.m5stack.com/post/19060Fri, 21 Oct 2022 17:56:37 GMT<![CDATA[Reply to ESPNOW is broken on Fri, 21 Oct 2022 17:14:54 GMT]]>Have you checked the Micropython.org website to see what they say (UIFLow is built on micropython)

Can you use ESPNow (in micropython ) without the UIFlow side?

]]>https://community.m5stack.com/post/19056https://community.m5stack.com/post/19056Fri, 21 Oct 2022 17:14:54 GMT