Core 2

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  Core 2 and ADC Input
  • bschwahn

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  Please have a look to my blog https://ckblog2016.net/2018/03/03/esp32-adc-dac/. Sorry for German language.
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  Core 2 with Sim 800 module.
  • pipy71

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  Hello @BrandPlay does your M5Core2 turn on ok w/o the SIM800L stacked to it? If you are using the M5Core2 battery, it is fully charged? If you power your M5Core2 from USB, have you tried a different cable / power source? Thanks Felix
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  Core2, W5500 and ESP-IDF example eth2ap
  • sheepDog

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  Hello Felix, thank you for your quick answer. I can ping sometimes and I cann't surf the Internet with my phone or with my computer and eth2ap-modul. I have changed the channel the softAP is using. Small changes in quality can be seen, but no significant improvement. I tried a different wireless client, for example my computer and my phone. I used a 12V/3A power adapter on LAN-Module with W5500. The M5Core2 and the LAN module also run stably with other applications and the same power supply. Bye, Uwe
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  New Core 2 Issues
  • azz

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  @littlbee Hi, sorry for your problems with burning...frustrating to say the least! I would attempt to try repeating the process from another computer...is that an option? Let's try to figure out if this is a communication error or a Core 2 defect? Keep us updated!
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  Updated version, working Core2 web radio player, M5Stack
  • homeuser33

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  @jdonth Had the exact same problem.........after 3 hours of googling, finally found the issue. Take a look at this diff file: https://git.koehlerweb.org/frodovdr/Sonoff-Tasmota/commit/8a764f86ee9f1129507f4654d07c7a7cb24cc87e It's totally unrelated to this project. Just a bug that freaks out the IDE. Anyhow......a couple of lines need to be changed in : \libraries\ESP8266Audio\src\libtinysoundfont\tsf.h Hopefully it makes sense......Hope it helps....
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  Simple webserver working on ESP32, not on Core2
  • Leo05

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  Hi @felmue No, the example server works fine. You are right, it was probably an issue with csv reading. Thank you
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  Core2 with W5500 and ESP-IDF
  • sheepDog

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  Hello @felmue, thank you very much. I changed in the file Kconfig.projbuild the range of parameter EXAMPLE_ETH_SPI_MISO_GPIO to 38 and used your values. It worked fine. Ethernet Type (W5500 Module) ---> (1) SPI Host Number (18) SPI SCLK GPIO number (23) SPI MOSI GPIO number (38) SPI MISO GPIO number (26) SPI CS GPIO number (5) SPI clock speed (MHz) (34) Interrupt GPIO number (19) PHY Reset GPIO number (1) PHY Address My challenge was that I hadn't used the Core2-values the last time I made changes. I overlooked this. Bye, Uwe
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  Core 2 and COMMU
  core2 arduino ide commu • • Benjo51

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  @felmue appreciate the quick response and link - will have to wrap my head around the specific info to the Core2 configuration. I'll try my best to decipher it but don't be surprised if I come back with my tail between my legs and a few questions ;-). Thanks, Manfred
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  Arduino IDE Configuration for Core2
  • jdonth

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  Hello @jdonth happy to hear it finally works for you. Thank you for letting me know. Happy New Year! Felix
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  Looking for Factory Test Source code for Core2
  • jdonth

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  The precompiled binary factory test if found in the M5Burner firmware download program.
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  Uploading .bin program via SD card to Core2
  • Pat

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  LittleFS problem with M5core2 and PIO
  • Leo05

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  Any experience with Core2<>LVGL lib ?
  • erich

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  Just answering to myself :) I spent the whole day digging into LVGL lib on the Core2. I must say there's a huge learning curve for me (I'm just a hobbyist with just average knowledge). I initially thought it would be very easy to use but this is definitely not the case (again, for me). However I am happy because I guess I have understood the basic concepts and I was finally able to diplay objects like buttons or sliders on the screen and interact with the touch display. This library is incredibly powerful. The fact that I am playing with others devices than M5Stack stuff motivates me to keep on investigating as I will be able to use it on almost any other screen devices. Would be great to use this post if you want to share your experience with LVGL and the Core2.
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  M5STACK CORE 2 SOUNDS
  • danbicks

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  @ajb2k3 As I mentioned in the other post my code is written in C (VSCode + PIO) however I would like to try Micropython for my next project M5Stuff project :) Can you please tell me more about your guide? Is it possible to buy it somewhere? is it the same as what is mentioned in your signature: UIFlow handbook? I would be very much interested, thanks!
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  How to Generate a Beep?
  • akaf24

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  @ajb2k3 Thanks for the tip. Unfortunately it is not that easy when not using UIFlow. I am using VSCode + PIO with the Arduino framework
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  SPIFFS on M5StackCore2
  core2 spiffs • • Powersoft

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  Yes you can, I am starting playing with my Core2 and could load a jpg image loaded in the SPIFFS using the SPIFFS.h Cheers Eric
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  Core2 and M5GFX
  • Minxster

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  Thanks @felmue. Thanks for taking the time to post back :-D... Luckily for me I'm bogged-down in user interface shenanigans (reading/processing/displaying touch inputs) so I've not really had time to look more closely at the library. I'm only a novice (noob) programmer in that I've not done it for over 25 years now LOL But sadly it means it's hard for me to understand the source files sometimes. Which is why it's a shame there isn't any documentation about the library. I'll have another stab at understanding it when I get my touch/UI sorted out a bit better. Thanks, Minxster
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  Reading analog temperature from LM35 sensor
  • ankurj77

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  @ankurj77 You will find in another post interesting information given by ROBALSTONA https://community.m5stack.com/topic/3782/waterproof-temperature-probe/5
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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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  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.