--Feature request--MQTT chat

[sysdl132]

Describe the bug

When I open the webserver,few seconds later it will auto reboot.
Here is the data in serial monitor.

ets Jun  8 2016 00:22:57
**FIRST POWER ON**
rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
M5StackMod initializing...[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
OK

Brownout detector was triggered
**OPEN WEB SERVER RESTART**
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
M5StackMod initializing...[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
OK
E (14762) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (14762) task_wdt:  - IDLE0 (CPU 0)
E (14762) task_wdt: Tasks currently running:
E (14762) task_wdt: CPU 0: MywebServer
E (14762) task_wdt: CPU 1: loopTask
E (14762) task_wdt: Aborting.
abort() was called at PC 0x400fba9c on core 0

Backtrace: 0x4008d9cc:0x3ffbe170 0x4008dbfd:0x3ffbe190 0x400fba9c:0x3ffbe1b0 0x400858fd:0x3ffbe1d0 0x4000bfed:0x3ffd2f50 0x4008b235:0x3ffd2f60 0x40089e6b:0x3ffd2f80 0x401656e6:0x3ffd2fc0 0x40153e95:0x3ffd2fe0 0x40179169:0x3ffd3000 0x400f23ca:0x3ffd3040 0x400d556f:0x3ffd3090 0x4008a0b9:0x3ffd30f0

Rebooting...
ets Jun  8 2016 00:22:57
**AFTER WEBSERVER DATA**
rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
M5StackMod initializing...[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
OK

Brownout detector was triggered

ets Jun  8 2016 00:22:57
**NORMAL REBOOT**
rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
M5StackMod initializing...[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
OK

Brownout detector was triggered

To Reproduce
Steps to reproduce the behavior:

1. Go to 'APPLICATIONS'
2. Click on 'Web Server'
3. Click on 'START'
4. Screen flash and restart

Expected behavior
Only activate web server

Desktop (please complete the following information):

• OS: [Windows 10]
• Browser [firefox]
• Version [73.0]

Additional context
I tried 12 times.Everytime has the same result.

[sysdl132]

My wifi connection is also has some problem.I enter the AP mode and 2 seconds later,it will go back to wifi setting page automaticlly.Is it normal?

[sysdl132]

Oh these problem are solved.

[sysdl132]

Now I want to request a feature:chat on m5 with mqtt.

You can see my repo.

https://github.com/sysdl132/Chat_APP_M5Stack