Core 2

• I

  Tough can't save firmware.
  • IsoEek

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  Hang on I have a mighty headache this morning so need things dumned down. Please explore how you have installed the software, connected hardware and tried to access the devices in M5Burner and are you sure you are accessing the correct com port?
• A

  m5stack core2 won't turn on with back cover inserted
  • aegorov

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• J

  getting started with Core2 and stuck.
  • jmarduino

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  actually just tried and it has similar issues. If you compile some of the examples with all warnings turned on in the IDE, the compiler stops error: unused variable 'names' [-Werror=unused-variable] static constexpr const char* const names[] = { "none", "wasHold", "wasClicked", "wasPressed", "wasReleased", "wasDeciedCount" }; ^~~~~ cc1plus: some warnings being treated as errors
• F

  Make a core2 wearable?
  • fovea1959

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  M5Stack supply screw kits but M3 socket head screws are cheap enough on Amazon and ebay
• H

  How to change 1 tick = 1 msec?
  • hgi867

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  I found that the 1/ portTICK_RATE_MS is 1 msec, but does this time accuracy depend on the accuracy of the internal RTC?
• M

  Speaker
  • mirandabar

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  Hello @mirandabar for M5Core2 you'll need a different library than for M5Stack (Base, Fire, etc.). Have a look at this thread here. Thanks Felix
• M

  Light Sleep and Deep Sleep
  • mirandabar

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  Hello @mirandabar have a look here. (Wake from touch in light or deep sleep.) Thanks Felix
• J

  Looking for Factory Test Source code for Core2
  • jdonth

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  Hello, I'm getting a similar error, trying to use the arduino samples for the M5 echo. Please let me know how I could resolve this. Thanks! Documents/M5-ProductExampleCodes-master/Core/Atom/AtomEcho/Arduino/EchoSTT/EchoSTT.ino: In function 'bool InitI2SSpeakOrMic(int)':/Documents/M5-ProductExampleCodes-master/Core/Atom/AtomEcho/Arduino/EchoSTT/EchoSTT.ino:39:33: warning: 'I2S_COMM_FORMAT_I2S' is deprecated [-Wdeprecated-declarations] .communication_format = I2S_COMM_FORMAT_I2S, ^~~~~~~~~~~~~~~~~~~ In file included from/Library/Arduino15/packages/esp32/hardware/esp32/2.0.9/tools/sdk/esp32/include/driver/include/driver/i2s.h:16, from //Documents/M5-ProductExampleCodes-master/Core/Atom/AtomEcho/Arduino/EchoSTT/EchoSTT.ino:12: //Library/Arduino15/packages/esp32/hardware/esp32/2.0.9/tools/sdk/esp32/include/hal/include/hal/i2s_types.h:87:5: note: declared here I2S_COMM_FORMAT_I2S attribute((deprecated)) = 0x01, /!< I2S communication format I2S, correspond to I2S_COMM_FORMAT_STAND_I2S/ ^~~~~~~~~~~~~~~~~~~ In file included from //Documents/Arduino/libraries/FastLED/src/FastLED.h:75, from //Documents/Arduino/libraries/M5Atom/src/utility/LED_DisPlay.h:4, from //Documents/Arduino/libraries/M5Atom/src/utility/LED_DisPlay.cpp:1: //Documents/Arduino/libraries/FastLED/src/fastspi.h:157:23: note: #pragma message: No hardware SPI pins defined. All SPI access will default to bitbanged output pragma message "No hardware SPI pins defined. All SPI access will default to bitbanged output" ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //Library/Arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: /private/var/folders/0t/yz2z12qx3c921x7fdqmtll4r0000gn/T/arduino/sketches/9E06B621E90448B5520779C00ED5183B/EchoSTT.ino.elf section .dram0.bss' will not fit in regiondram0_0_seg' //Library/Arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: DRAM segment data does not fit. //Library/Arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: DRAM segment data does not fit. //Library/Arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/esp-2021r2-patch5-8.4.0/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: region `dram0_0_seg' overflowed by 5056 bytes collect2: error: ld returned 1 exit status exit status 1 Compilation error: exit status 1
• R

  No COM found (Soft Bricked)
  • raeph

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  R

  @ajb2k3 Sadly didn't get it to work so far... But thanks anyways :-)
• N

  M5stack core 2 Doesn't turn on
  • Nickcarp

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  Have you charged it?
• M

  Reset to factory defaults
  • mirandabar

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  M

  @ajb2k3 said in Reset to factory defaults: Use M5Burner to wipe the firmware and reinstall the firmware. Thank you so much.
• H

  This topic is deleted!
  • HappyUser

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• K

  Boot loop on M5Core2 after burning Core2factoryTest
  • kempston

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  K

  @wsanders I don't know, but I assume that firmware built using the latest SDK is backwards compatible and should work on older Core 2s. I don't have an older Core2 to test.
• S

  Sleep (deep/light) causes watering unit to power on
  • sk_muc

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• C

  Send accel data from M5Stack Core 2 to TouchDesigner via OSC
  • creativetabi

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• S

  M5Core2 + Bottom2 Example crashes
  • swiminthesky

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  Yes it seems the microphone on the M5Core2 with Bottom 2 still does not work. I have tried basic record and replay using UIFlow Blocky and the Core2 crashes and restarts. Its frustrating that such basic functions do not work and aren't fixed in updates.
• B

  M5Stack Core2 Specs
  • bend94

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  @bend94 G35 & G36 are ESP32 ADCs but they are notoriously awful. The Core2 does not have a dedicated ADC! It can drive a small 9g servo (SG90) directly using a library called “ledc”. Other motors should have a separate power supply. GPIO is 3.3v in and out.
• H

  Exact dimensions of the M5Core2 Module
  • HappyUser

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  H

  @flypeek Thank you, that link appears of great help.
• B

  Bricked Core2
  • brianbgarber

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  B

  Interestingly enough I'm able to burn and run the M5Core2 TouchPanel Recovery and Core2_For_AWS. I'm wondering now if there is a bad memory chip.
• E

  updated PlatformIO settings for M5stack Core2 welcome
  • emddom

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  Hello @emddom have you tried the code here? Thanks Felix