Core 2

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  Core2 and M5GFX
  • Minxster

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  Hello @Minxster a lot of functionality in M5Core2.h has been developed by @Rop and has then been adopted by M5Stack. The code is a bit older and only covers M5Core2. On the other hand the M5GFX library is more universal, covers all current M5Stack devices and is more recent. Thanks Felix
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  UHF RFID Unit (JRD4035) on M5Core2
  m5core2 rfid uhf examples help • • tobias.h

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  Hello @tobias-h glad to hear it works now. Thank you for reporting back. Have fun! Thanks Felix
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  Updated version, working Core2 web radio player, M5Stack
  • homeuser33

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  @homeuser33 said in Updated version, working Core2 web radio player, M5Stack: Hello, the code runs but it is stuck on the "Connecting" screen from the initwifi() function. I put the correct SSID and password it is still not working. Please try to help me out.
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  Core2 with Visual Studio Code
  micropython • • ondrej1024

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  I am also having this problem with the most recent version, did you get it working for the core2? All the example code I found was for a model with buttons not touch screen and several libraries that I haven't got to work on a core2.
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  Core2 kmbusmode
  • mu0104

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  Hello @mu0104 that doesn't sound right. I have an M5Core2 which is solely powered via the 5 V input from the stacked COM.X module and the communication between the two uses Serial2 (aka GPIO13 and GPIO14) successfully. Do you care to share your code? Thanks Felix
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  Core2 BAT Input Voltage
  • mu0104

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  Hello @mu0104 according to the M5Core2 schematic the battery is controlled by the AXP192. I suggest you to consult the AXP192 datasheet. Thanks Felix
• A

  New Core 2 Issues
  • azz

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  Yes indeed, the Core2 is really terrible when it comes to flashing/burning images. I have a M5Paper that I use from the very same computer and have no problem at all flashing anything, but Core2 is very, very, very tedious. I will take you many retries to finally succeed getting something burned. What I found is that sometimes pressing the reset button right after starting to burn helps. Might be just a mental illusion, but I have the feeling my success rate improved by 1 or 2%.
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  GPIO32 of M5core2 is always HIGH and cannot be used as input.
  • rin9147

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  Hello @rin9147 no, you can but you don't need to remove the pullup resistor. If you read GPIO32 like this it will report HIGH and when you connect GPIO32 to GND with a wire is should read LOW. Use below code to set GPIO32 as input and do something when it is read LOW. pinMode(32, INPUT); if(digitalRead(32) == LOW) ... Thanks Felix
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  M5Stack does not start with 5V pin of M-BUS
  • rin9147

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  I set it up based on what you said and it works. I noticed later that m5-docs had the same thing. I'm glad you explained it in detail. Thanks.
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  M5Core2 No MQTT after download
  • DarthBorg

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  Confusing M5Core2 Initialization
  • rmetzner49

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  Hello @rmetzner49 try without the extra Serial.begin(115200). By default Serial gets already initialized when the M5.begin() function is called. I've seen things go wrong before when Serial is initialized twice. Thanks Felix
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  Core2 Esptool.py flash fail
  • barbiani

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  Yes it makes sense! Made a table to help other users. For the USB module... The Core2 does not power the 5v bus line until the ax192 is initialized.. and the USB module without power holds the reset line down preventing the esp32 from starting. Thank you very much.
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  Core2 not working with COMMU Module
  • daniel3344

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  Hello @daniel3344 maybe this old post might be helpful? Thanks Felix
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  RFID RC522 IS NOT DETECTED WITH QWERTY CONNECTED
  • Paula

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  WiFi Config help
  • Flow

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  Are you sure that your computer has connected to the the M5-520 access point using your computers wifi manager? IF you not able to access 192.168.4.1 it means you are not connected to the M5Stack device, you may need to refresh the firmware using the M5Burner program.
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  One of M5stacks tutorials doesn't work for me- WAV player
  • morrischen

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  I have the same problem with my Core2. Followed the demo in every step. And I am using the latest version (beta web) and newest firmware. Could you please send me the m5f, too?
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  M5Stack Core 2 and GPS Module
  • wima

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  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.
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  Core 2 and Faces Bottom II compatible?
  core2 faces bottom • • New_Comix

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  Light / Deep sleep example
  • felmue

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  @felmue Thanks for the sample code ! For rumble part yes it was shaken it.. i have read your kb about Core2 and see not possible without hardware modification... Thanks again for you quick answer !
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  new Core 2 do not work as expected
  • azz

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