Hello guys,

First I would like to suggest to the M5 staff to add information about the compatibility of their modules/bases with Core and Core2 on the product description page. As a new user of M5 products I bought a bunch of modules to find them incompatible with the Core2.

Now my questions:

1. Can I use the M5 USB Module with Core2 and what bottom/base should I buy for this combo(So the PCB is protected and I can mount the Core2 on a machine?

2. I see there is new M5GO Battery Bottom2. Does it come with the charging base(the one with the pogo pins and USB C) or I have to buy one from THIS LINK

3. Since the M5 USB module is made for the "old system" would the M5GO Battery Bottom2 fit under the USB Module so I can stack the 3 pieces together?

Also I would like to thank the M5 staff who were being very helpful to me so far.

@Rop Great job with the i2c_manager component. I will test it ASAP since I had many troubles with Espressif's i2c driver.

@zontex Did you manage to find the answers for my questions? You said few minutes, its been 9 months :D

Anyone successfully got this running on M5 Core 2?

Hello guys,

First I would like to suggest to the M5 staff to add information about the compatibility of their modules/bases with Core and Core2 on the product description page. As a new user of M5 products I bought a bunch of modules to find them incompatible with the Core2.

Now my questions:

1. Can I use the M5 USB Module with Core2 and what bottom/base should I buy for this combo(So the PCB is protected and I can mount the Core2 on a machine?

2. I see there is new M5GO Battery Bottom2. Does it come with the charging base(the one with the pogo pins and USB C) or I have to buy one from THIS LINK

3. Since the M5 USB module is made for the "old system" would the M5GO Battery Bottom2 fit under the USB Module so I can stack the 3 pieces together?

Also I would like to thank the M5 staff who were being very helpful to me so far.

So, to conclude: Is the Grove port on the Core2 5V tolerant or not? In other words - can I connect a I2C sensor powered with 5V of the Grove connector without level shifter? Also, If the pins are not 5V tolerant, why is then 5V available on the Grove port and not 3.3V?

@world101 I looked at your project and I think it would be a very good starting point for my idea. Thank you!

@zontex Thank you for your answer. While on this topic: Is it possible to make UI with different tabs/pages/views using UI Flow or I have to go with LVGL?

@ajb2k3 Thank you for the detailed explanation!

Hi guys,

Long time ago I bought a set of grove cables from seeedstudio(who are in fact "inventors" of the grove connectors).
However, the cable connector doesn't fit in the Core2's grove port but fits in other parts from m5stack. I looked on seeed's website to find more information about different grove connectors but all information I find says that there is only one type... Please see the photos.

Hello guys,

This is my first post here and I am just getting acquainted with the M5Core2. So I am looking for all the options of designing a good looking UI for controlling Home Assistant. Does any of you know any good tool similar to UI Flow but with more options for customisation?

So far I have found the following options:

1. The UI flow(of course) but I don't like its limitations. I cannot make a scrolling view or create multiple views.
2. LVGL - https://lvgl.io/ Looks very promising and I see there are some expanses for Core2
3. Using plain MicroPython(with no special GUI frameworks)
4. Using Arduino IDE

Also, I quite liked the factory firmware that the Core2 came with. The interface was very fast and responsive and the graphics look very pleasant. Do you know what technologies were used in this factory firmware?