Well if you got as far as you did you have already installed the ESP32 boards so you can pick the correct one. I assume the core basic does still use the "M5Stack-Core-ESP32" board. https://github.com/m5stack/m5stack This link shows the documentation for the Grey(which I am using) and the Basic. I can't translate all the warnings you got but the last part seems to indicate it isn't pointing to the correct config.h(or it can't find it). Config.h, i believe, is the library that is handling defining all the pins used in the stack. So without it the board has no idea what is going on. Are you able to open other sample arduino sketches and select something like an UNO and compile just fine? I wish I could help more. The only thing I can suggest is to step through the setup once again. https://docs.m5stack.com/en/quick_start/m5core/arduino

What are you trying to do? There are loads of examples but if you are trying to build something specific that might help. I did a beginner 3.5hr video on doing a gps based speedo and talk about some basic graphics, text display and getting GPS using the TinyGPS++ library. not sure if that is what you are looking for. https://youtu.be/xlb7FGKBp3Q

https://github.com/pschatzmann/ESP32-A2DP

@felmue OK thanks, I will try to look into this, I have the impression that it might be due to a different compiler. By the way do you know if it is possible to convert the arduino sketch into code that can be compiled with classical gc++ Thanks

OK, thanks I will try LVGL

Unfortunately not. Arduino work on a lower level than MicroPython and so runs directly on the hardware. Micropython is an interpreted language and so need to install a boot loader/ interpreter to run. It can be inconvenient to have to install the MP boot loader when you want to switch back but its now a simple process.

Hello @ispybadguys "SerialEnable =true" is set. System：begin() void begin(bool LCDEnable=true, bool SDEnable=true, bool SerialEnable=true, bool I2CEnable=false); https://github.com/m5stack/m5-docs/blob/master/docs/en/api/system.md Exsample M5.begin(true, true, false, true); Serial.begin(9600);

I have been using ARDUINO_ESP32C3_DEV to differentiate between Espressif dev board and StampC3, in combination with ESP_PLATFORM.

@morguane I just saw your topic (of almost a year ago). I guess you solved your problems with the external RTC by now. But anyway liked to inform you about the repo I published on GitHub, using a D3231 RTC with a M5Stack Core1 (BASIC). DS3231 on M5Stack_DS3231_uRTC. Regards,

@felmue said in M5.shutdown(x) does not last x seconds: the shutdown functionality only works when M5CoreInk is running from battery. ah haaaaaaaa! ok! Thanks for the remark! Indeed. And now it works (when from battery). And if somebody wonders, it might be useful to note in the doc that shutdown() actually has the M5 run again the setup() code (it makes sense, as it is "shut-down" but worth mentioning because it changes the way to implement things).

thanks, this should work out fine :)

Thanks! I finally have it working!

@felmue thanks! It works fine after the update :)

@jwd3ca NO! Unfortunately I didn't find a solution. As written above, I just left the PSRAM disabled, as i don't need it in my application.

Check out the speak.ino in the new M5Unified library v0.0.5 it will compile with the Core2 or the Tough and produce sound. There is a M5 speaker class , that can be used to produce tones. The problem is that while the library works by itself it is Not compatible with M5Tough.h or M5Core2.h files. And yes , there is a problem with the Core2 and Tough speak.ino the Log file shows a conflict with mclk pin config , when trying to setup the I2S sound The error is in a higher level M5 system file that was introduced when the Tough was released in the Fall. Sorry , I dont know how to fix it.. -Brent