@IndianaTux
this works on my CoreS3, directly turns off LDO2

#include <M5CoreS3.h> #include <Wire.h> void setup() { // put your setup code here, to run once: Wire1.beginTransmission(0x34); Wire1.write(0x12); Wire1.write(0b01001011); // LDO2, aka OLED_VDD, off Wire1.endTransmission(); }

@raeph
maybe these codes will help:
https://github.com/m5stack/uiflow-micropython/tree/master/tests/bluetooth

Hello @laursena

unfortunately I don't know the answer to your question about the power consumption and if M5Core2 can handle it.

However what I can tell you is that you do not necessarily need the PaHubs. The M5Stack I2C weight measurement units allow for the I2C address to be modified - so you could give each unit its own I2C address and simply connect them in parallel.

Thanks
Felix

I faced the same problem with M5 Stack Core2.
It was not connecting via USB no light was turning on when connected to USB.

Here is what I did

Disconnect the device from USB port of your computer Now you have turn off the device. It is hard since your don't know whether it is on currently or not and connecting USB will turn in on automatically. So connect it to USB once. Then disconnect it again, now you can know device is on. Not press the power button for 10 seconds it will turn off the device. Remove the pin cover from the bottom of the ESP32. Using a wire connect G0 to any GND ping Now plugin the device to the computer
You should see the device now.

Use this opportunity to flash a good program into the device. Now remove the wire between G0 and GND and restart your device.

@LostInSpace I am quite new to all this so could you post a simple code of making a beep with your library.
thank you
Ioannis

I managed to resolve the issue I was having by editing the hardware.cpp of the project from

pinMode(VCC_3V3_PIN, INPUT);

to

#ifdef VCC_3V3_PIN pinMode(VCC_3V3_PIN, INPUT); #endif

This has then enabled me to comment out the unused pins in the pins.h

@felmue and @ajb2k3 thanks for your help

@felmue

Amazing! It works!

Thank you so much

Hello @HolgerRauls

unfortunately M5Core2 v1.1 isn't fully supported in M5Core2 library. See here.

Consider switching to M5Unified library which supports M5Core2 v1.1 to run from MBus 5V.

Thanks
Felix

@matthiMarschi This one worked fine for me: M5.Axp.SetLed(0);

Couldn't decide, so I bought both lol.

Each seems to have some different strengths - the Fire has more ports, the cool magnetic base and physical buttons that often work better than touchscreens. As such it's great for tinkering. But the Core 2 seems a bit more 'polished' for portable applications.

@ajb2k3 Thanks for the response. Yes, I had found these before, but there for the FT6336U there is only an .xlsx document with a very brief description of the chip registers.

I am looking for a bit more detail...

@cchakons The error message you have implies that you have the wrong firmware selected for the stick Cplus2

@ajb2k3 Thank you soo much!
I turned off the VPN, and then it worked.

Hello @G3D_Design

please have a look at this simple RTC alarm trigger example in the UIFlow2 Project Zone: M5Core2_RTC_Alarm_Trigger_UIFlow2.1.1

Thanks
Felix

@virgile Have you charged the battery?

@Balboa yes and it can be used to send data it can not be used as a WiFi modem.
You can use it to receive data and commands from sensors to send to the internet just not browse internet

@themaker did you erase the firmware before writing?