Access Point not showing up in WiFi list when using Edgent example

Hello,
I have programmed the ESP32 with the Blynk Edgent example using the Arduino IDE. When I apply power to the ESP32 board, the LED associated with WiFi provisioning does indeed blink. However, the Access Point does not show up in the SSID list of WiFi devices. It doesn’t show up on my laptop or my iPhone. What could cause this?

Thanks.

You’re meant to open the Blynk app on your phone and hit the “+ Add Device” button then follow the on-screen options.

Pete.

Pete,
Thanks for replying.
I did the “+ Add Device” thing several months ago, I was able to provision it via WiFi, and everything was working perfectly. Then there was a power outage at my house on March 14th, and it hasn’t worked since. So I replaced the ESP32, programmed it, and now I’m trying to provision it via WiFi. I’m using the “Reconfigure” option for the device in question. But when I do this, it says “No Device Found”. When I try it manually, I don’t see the Access Point (e.g. Blynk_xxxxx) in the list of available WiFi devices.

So in summary, I took known working software and programmed it into a new ESP32 board. Then I opened my existing Blynk app on my iPhone and did the Reconfiguration procedure, but no luck.

Don’t you think that this is information that should have been included in your first post?

What Blynk library version are you using?
Are you using iOS or Android, and what app version number are you using?
What do you see in your serial monitor?

Pete.

Pete,

I’ve been out of town and unable to reply sooner.
Yes, I should have stated that information in my OP, but I like to keep my posts concise and didn’t think
that info was pertinent to my issue, since I basically started from scratch with a new ESP32, programmed it with an Edgent based software, saw the led blink, but didn’t see the Access Point SSID appear in my list of available Wifi signals.

Anyway, to answer your questions,
Blynk library version: 1.2.0
iPhone is Apple (iOS): 3.5.4 (0)

The serial monitor shows that the ESP32 is continually rebooting. Before each reboot, it tries to connect to my router, which I think is incorrect. It should be providing an access point and waiting for an external device to connect. Am I correct? I can post the output of the serial monitor. Should I simply cut and paste the text into a post? Or should I somehow upload a file. I want to do it the correct way to avoid being scolded. :grimacing:

Yes, and put triple backticks at the beginning and end so that it posts correctly.
Triple backticks look like this:
```

Copy and paste these if you can’t find the correct symbol on your keyboard.

Pete.

Below is the serial monitor output. It pauses after the line “[173] Connecting to WiFi: TDS1714”
for 2-3 seconds before continuing. FYI, TDS1714 is the SSID for my router.

[131] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v1.2.0 on ESP32

 #StandWithUkraine    https://bit.ly/swua


[136] --------------------------
[139] Product:  HousePowerMonitor
[142] Firmware: 1.2.0 (build Apr  8 2023 11:12:17)
[147] Token:    Gj09 - •••• - •••• - ••••
[153] Device:   ESP32 @ 240MHz
[155] MAC:      4C:11:AE:EA:75:14
[158] Flash:    4096K
[160] ESP sdk:  v3.2.3-14-gd3e562907
[164] Chip rev: 1
[165] Free mem: 244436
[168] --------------------------

>[171] INIT => CONNECTING_NET
[173] Connecting to WiFi: TDS1714
Guru Meditation Error: Core  1 panic'ed (Cache disabled but cached memory region accessed)
Core 1 register dump:
PC      : 0x40158198  PS      : 0x00060034  A0      : 0x800817e4  A1      : 0x3ffbe790  
A2      : 0x3ffc1120  A3      : 0x20000000  A4      : 0x00000400  A5      : 0x00000000  
A6      : 0x3ffc53c0  A7      : 0xffffffff  A8      : 0x80081005  A9      : 0x3ffc3078  
A10     : 0x00000001  A11     : 0x00000034  A12     : 0x3ffba264  A13     : 0x0000abab  
A14     : 0x3ffc7194  A15     : 0x3ffba264  SAR     : 0x0000001a  EXCCAUSE: 0x00000007  
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000  
Core 1 was running in ISR context:
EPC1    : 0x40086f6c  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x40158198

Backtrace: 0x40158198:0x3ffbe790 0x400817e1:0x3ffbe7b0 0x40084cb1:0x3ffbe7d0 0x40086f69:0x3ffba190 0x400830af:0x3ffba1b0 0x400890bd:0x3ffba1d0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0x3 (SW_RESET),boot:0x13 (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:1216
ho 0 tail 12 room 4
load:0x40078000,len:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
[128] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v1.2.0 on ESP32

 #StandWithUkraine    https://bit.ly/swua


[134] --------------------------
[137] Product:  HousePowerMonitor
[140] Firmware: 1.2.0 (build Apr  8 2023 11:12:17)
[144] Token:    Gj09 - •••• - •••• - ••••
[150] Device:   ESP32 @ 240MHz
[153] MAC:      4C:11:AE:EA:75:14
[156] Flash:    4096K
[158] ESP sdk:  v3.2.3-14-gd3e562907
[161] Chip rev: 1
[163] Free mem: 244436
[165] --------------------------

>[168] INIT => CONNECTING_NET
[171] Connecting to WiFi: TDS1714
Guru Meditation Error: Core  1 panic'ed (Cache disabled but cached memory region accessed)
Core 1 register dump:
PC      : 0x40158198  PS      : 0x00060034  A0      : 0x800817e4  A1      : 0x3ffbe790  
A2      : 0x3ffc1120  A3      : 0x20000000  A4      : 0x00000400  A5      : 0x00000000  
A6      : 0x3ffc53c0  A7      : 0xffffffff  A8      : 0x80081005  A9      : 0x3ffc3078  
A10     : 0x00000001  A11     : 0x0000003b  A12     : 0x3ffba264  A13     : 0x0000abab  
A14     : 0x00000000  A15     : 0x3ffba264  SAR     : 0x0000001a  EXCCAUSE: 0x00000007  
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000  
Core 1 was running in ISR context:
EPC1    : 0x40086f6f  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x40158198

Backtrace: 0x40158198:0x3ffbe790 0x400817e1:0x3ffbe7b0 0x40084cb1:0x3ffbe7d0 0x40086f6c:0x3ffba190 0x400830af:0x3ffba1b0 0x400890bd:0x3ffba1d0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0x3 (SW_RESET),boot:0x13 (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:1216
ho 0 tail 12 room 4
load:0x40078000,len:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
[127] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v1.2.0 on ESP32

 #StandWithUkraine    https://bit.ly/swua


[133] --------------------------
[136] Product:  HousePowerMonitor
[139] Firmware: 1.2.0 (build Apr  8 2023 11:12:17)
[143] Token:    Gj09 - •••• - •••• - ••••
[149] Device:   ESP32 @ 240MHz
[152] MAC:      4C:11:AE:EA:75:14
[155] Flash:    4096K
[157] ESP sdk:  v3.2.3-14-gd3e562907
[160] Chip rev: 1
[162] Free mem: 244436
[164] --------------------------

>[167] INIT => CONNECTING_NET
[170] Connecting to WiFi: TDS1714
Guru Meditation Error: Core  1 panic'ed (Cache disabled but cached memory region accessed)
Core 1 register dump:
PC      : 0x40158211  PS      : 0x00060034  A0      : 0x80081005  A1      : 0x3ffbe760  
A2      : 0x00000001  A3      : 0x00000014  A4      : 0x3ffba264  A5      : 0x0000abab  
A6      : 0x3ffc7194  A7      : 0x3ffba264  A8      : 0x00000000  A9      : 0x3ff4889c  
A10     : 0x00000000  A11     : 0x3ffba264  A12     : 0x00000001  A13     : 0x00000001  
A14     : 0x00060021  A15     : 0x00000000  SAR     : 0x0000001a  EXCCAUSE: 0x00000007  
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000  
Core 1 was running in ISR context:
EPC1    : 0x40086f6c  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x40158211

Backtrace: 0x40158211:0x3ffbe760 0x40081002:0x3ffbe790 0x400817e1:0x3ffbe7b0 0x40084cb1:0x3ffbe7d0 0x40086f69:0x3ffba190 0x400830af:0x3ffba1b0 0x400890bd:0x3ffba1d0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0x3 (SW_RESET),boot:0x13 (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:1216
ho 0 tail 12 room 4
load:0x40078000,len:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
[131] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v1.2.0 on ESP32

 #StandWithUkraine    https://bit.ly/swua


[136] --------------------------
[139] Product:  HousePowerMonitor
[142] Firmware: 1.2.0 (build Apr  8 2023 11:12:17)
[147] Token:    Gj09 - •••• - •••• - ••••
[153] Device:   ESP32 @ 240MHz
[156] MAC:      4C:11:AE:EA:75:14
[159] Flash:    4096K
[161] ESP sdk:  v3.2.3-14-gd3e562907
[164] Chip rev: 1
[165] Free mem: 244436
[168] --------------------------

>[171] INIT => CONNECTING_NET
[173] Connecting to WiFi: TDS1714

Something else that you ought to have mentioned earlier.

Have you tried decoding the register dump data?

Are you using the Edgent example from the v1.20. Library with no changes other than adding-in the two lines of firmware configuration and un-commenting the correct board type?

Pete.

Pete,
I solved my problem. The one thing I hadn’t updated was the ESP32 Board files via the Arduino Board Manager. Both the Blynk Edgent example as well as my IOT application are now working. Thanks for your help.
Tony