Addendum:
The components close to the MBUS connector also get in the way of the original bottom, if fit to the GPS module.
So I am afraid there is not really a practical solution.

Which OS are you used? macOS? it maybe is the USB driver problem. could you put it to win10 and try again.?

https://github.com/m5stack/M5Unified

Hello @Flow

if in the online version (1.8.5) of UIFlow I select M5Core2 then under Demo (button top right) I only see the drawing board app, however when I select M5Stack (Base) I see multiple example apps under Demo, including the Weather Station.

In other words, the examples build for M5Stack are in general not compatible with M5Core2 and vice versa.

I guess your options are to either take the M5Stack examples and try to adapt / rebuild them to M5Core2 or get an M5Stack.

Thanks
Felix

ahh one more think with i just recall :D
when my core 2 was at home by using M5Burner by mistake i just preload UIflow for Core not for Core2 and this was a same loop as you can see

Hello @JBecker32

ah, ok. Thank you for the clarification.

It never occurred to me to 'reuse' the M5Core2 base plate to complete the stack. It probably won't fit under any of the modules as they are all quite different regarding where components have been placed. Plus most (all?) modules are lacking a connector for the battery anyways. So yes, the question remains as to why it has been designed like that. I guess only M5Stack engineers will now.

Yes, the M5Go Battery Bottom 2 could be a solution. Please be aware though that since it contains additional hardware, it consumes additional energy. (The 10 LEDs alone eat about 1 mA each, even when they are off.)

Maybe it's time to start the 3D printer and design you own?

Thanks
Felix

Hello @e-d

I don't think this particular parameter has been documented (yet) for the LAN PoE module. It has for some of the newer COMX modules which also can be powered externally.

Another reason, I guess, is, that with M5Stack devices (Fire, Gray, Base) there is no need to switch between output and input as they use a different electrical circuit than M5Core2, which allows the power pin to be both (input and output) at the same time.

As for learning about these parameters - sometimes looking at the Arduino libraries and / or schematic helps figuring out how things are meant to work.

Thanks
Felix

Hello @ganeyvim

ok, I think maybe the 'vector' library is missing.

Maybe you'll need to add it manually to your project? See here.

Thanks
Felix

Hello @SarahC

good to know. Thank you for sharing.

Thanks
Felix

It turned out to be my Ryzen Swift 3 USB drivers!

After updating them the problem resolved.

@takero
I write what happened after that.
I bought a 2.5A AC adapter. I replaced it with a 1A adapter, but it didn't work.
However, it works with power supplied from a PC.

@urwaldfloh Glad to hear it. unfortunately I can't think of any tips that may help

Hello @bmweller

M5Stack has just released UIFlow 1.8.0. Unfortunately loading any old m5f files is broken in this release. We need to wait until M5Stack fixes that unfortunate regression.

Thanks
Felix

500 mA is the limit on the 5V bus (if I recall correctly)