<![CDATA[Power Input]]>Hello everyone,

I have some questions about powering the Core2 module:

  1. Currently, if the device is turned off and is connected by USB-C, it turns on. I would like to know if I put the 5V bus in input mode and feed it 5V the same thing happens.
  2. I was wondering what is the best way to detect the 5V input turning off to turn off the Core2 since there is a battery and it could stay on. Any ideas?

Thanks very much for your help!
Fábio Dias

]]>https://community.m5stack.com/topic/4571/power-inputRSS for NodeFri, 01 May 2026 07:13:37 GMTTue, 30 Aug 2022 09:45:31 GMT60<![CDATA[Reply to Power Input on Tue, 30 Aug 2022 11:08:52 GMT]]>So with a bit of research, I develop this simple code that makes exactly what I was asking here:

#include <M5Core2.h>
#define DEVICE_TIMEOUT 120000
float Time_bat = 0;

void setup{
  M5.begin();
  M5.Axp.SetBusPowerMode(1);
}

void loop{
  M5.Lcd.drawString(("Battery: " + String(M5.Axp.GetBatteryLevel())), 0, 120, 2);
  if(!M5.Axp.isVBUS() && !M5.Axp.isCharging()){
    M5.Lcd.drawString(String((millis() - Time_bat)/1000,0) + "         ", 1, 154, 1);
  }else{M5.Lcd.drawString("Feeded             ", 1, 154, 1);}

  if(!M5.Axp.isVBUS() && !M5.Axp.isCharging()){
      if(Time_bat == 0){Time_bat = millis();}
      if((millis() - Time_bat) > DEVICE_TIMEOUT){M5.shutdown();}
  }else{
    Time_bat = 0;
  } 
}

Hope it helps someone!

]]>https://community.m5stack.com/post/18500https://community.m5stack.com/post/18500Tue, 30 Aug 2022 11:08:52 GMT