Best posts made by Arno

@schlabbermampf You can delete the M5GO Bottom2 battery from your shopping list, it is reserved for CORE2 and you already have a battery in the M5Stack FIRE pack.

Unfortunately the GOPLUS 2 is not specific to CORE2 it is also the same problem with the FACE2 which is not compatible with the CORE 2 ... It is a big marketing error of M5STACK.
For a better connection I added small pieces of schotch under the PCB at the level of the screws on the GOPLUS 2.

It is very difficult to visualize the compatibilities of CORE with modules or UNITS.
From CORE2 it's very frustrating to see the many incompatibilities.
The designation "2" of certain products suggests that they are compatible with CORE2 and this is absolutely not the case, this adds even more frustration and purchases that are useless ...
This added to the lack of clear and detailed documentation may scare many people away.
Please clarify the situation quickly!

PaHUB does not work with CORE2, always the same message "name 'freq' isn't defined.
All these situations block any progress with M5stack products and add more and more frustration day after day.
Please, more testing before release to market.

I am in favor of an external 5 "or 7" LCD screen compatible with M5 cores

it's not serious, the bug with the PaHub has not been corrected. I found myself with two CORE2 and useless Pahub.
Why market products that don't work?

@atu Can be made a test with the example of the MQTT unit

Here is the solution that I use for the extended I / O in output in order to control relays in 24V.

The connection is almost identical except GND and VCC.
VCC must not be connected for use> 5V.

@schlabbermampf ATOM lite is not compatible with CORE M5stack modules. It is preferable to use a CORE M5FIRE or M5GO

thank you very much for this very valuable information for a beginner like me.

@ajb2k3 J'attends avec impatience la version Française. super boulot, félicitations