@mnwh If your error has something to do with the "ADC1_GPIO35_CHANNEL not defined" error I got, then you can "simply" insert this #include "soc/adc_channel.h" into the \Documents\Arduino\libraries\M5EPD\src\M5EPD.cpp. I wrote this in a new line (line 4) It's caused by a change from espressif 3.3 to 4.4. Have fun, undefined

@oscillator The CORE2 API is different from the CORE API. Different hardware.

@spjrc set a timer to call a function after 6-12 houre, then call ESP.restart() from that function.

@felmue Thanks for the pointer !

CH34X driver for the CP2102/CH910? I'm using the the CP210x driver and have it working

As far as I am aware, Web USB is still an experimental function and to fully working on all operating system and web browser configurations.

Hello @robinJiao you are correct, M5Stack devices are feature rich ESP32 kits. And yes, you most likely can use the firebase-esp library to code for the ESP32 processor in your M5Core2. However the additional hardware, e.g. LCD, touch screen, RTC, accelerometer, etc. in your M5Core2 are not getting initialized automatically since the firebase-esp library doesn't know about them. That is the reason you are seeing a blank screen. (BTW: the firebase-esp code most likely is running though - did you check the serial output?) That said, may I suggest you start with the libraries designed for M5Core2 and run some simple examples first? My apologies, if you already have done that. Thanks Felix

Hello @Skulblaka try using the x and y coordinates of the pushCanvas() command instead. canvas.qrcode("https://www.example.org/", 0, 0, 400); canvas.pushCanvas(70, Y, UPDATE_MODE_GC16); Thanks Felix

How to run LVGL on M5Stack https://forum.m5stack.com/topic/3613/how-to-run-lvgl-on-m5stack/1

@m5stack Thank you!

Excellent article, thanks a lot @AgreeDK My plan (in the future) is to have the sound lib Mozzi run on one core, and the UI on the other.

In case anyone else is looking for the real PowerOff (and NOT deep sleep or any other sleep method), the command to use is M5.Axp.PowerOff(); (mind the capitals) After this command you have to power your M5Stick manually by pressing the power button, but it works as a charm.

@m5stack said in 2 M5StickC devices, one can upload, other can not: DuPont cable I tried. After lowering the baud rate to 115.200 it did work once. Could not debug any more and 6 others tries did not succeed after that. So uploading final software on production stick could perhaps be successful after numerous tries, but that's all. Not a consistent environment to develop prototypes or products.

png[] = { Missing length in [] (it's number a hexa) ex : const unsigned char batPowerImage[13769]={

@m5stack said in Change I2C pin in M5GFX Library (to use With ATOM LITE): if you wanna change the I2C pin. you could use this code. #include <M5UnitOLED.h> //M5UnitOLED display; // default setting M5UnitOLED display ( 21, 22, 400000 ); // SDA, SCL, FREQ tnks a lot !!!