Hi.
Which board are you selecting in Tools > Boards for your board model?
Regards,
Sara

Hi Sara
Good to hear from you, thank you for responding!
The board is “DFRobot Firebeetle 2 ESP32-S3”.  Sorry I omitted the “2” in my query.
In Boards Manager, it is found under esp32, and NOT under DFRobot ESP32 Boards.
Once selected, there are many partition schemes to choose from.  I went with the “16M Flash (3M APP /9.9M FATFS)” as recommended in the DFRobot Wiki at item 10 here: https://wiki.dfrobot.com/SKU_DFR0975_FireBeetle_2_Board_ESP32_S3#target_6
Best wishes
Simon
 

Have you tried choosing a partition scheme with SPIFFS?
Regards,
Sara

Yes, and with some success but not reliable ( I had tried – before contacting you – but now I try again and it seems to be behaving differently, but that might just have been my frustration! ).
The code compiles and uploads using a comination of “Flash Size: 8MB” coupled with “Partition: 8MB with SPIFFS”
But then the system is in a perpetual reboot loop:

13:26:41.906 -> SPIFFS mounted successfullyESP-ROM:esp32s3-20210327

13:26:41.906 -> Build:Mar 27 2021

13:26:41.906 -> rst:0x3 (RTC_SW_SYS_RST),boot:0xb (SPI_FAST_FLASH_BOOT)

13:26:41.906 -> Saved PC:0x40377684

13:26:41.906 -> SPIWP:0xee

13:26:41.906 -> mode:DIO, clock div:1

13:26:41.906 -> load:0x3fce3818,len:0x109c

13:26:41.906 -> load:0x403c9700,len:0x4

13:26:41.906 -> load:0x403c9704,len:0xb50

13:26:41.938 -> load:0x403cc700,len:0x2fd0

13:26:41.938 -> entry 0x403c98ac

13:26:42.760 -> SPIFFS mounted successfullyESP-ROM:esp32s3-20210327

13:26:42.760 -> Build:Mar 27 2021

13:26:42.760 -> rst:0x3 (RTC_SW_SYS_RST),boot:0xb (SPI_FAST_FLASH_BOOT)

etc etc etc
I was reading about his problem in the Espressif ESP32-S3 Guide but it felt like we were moving into unnecessary territory, given that other codes execute perfectly well.
So I tracked down the actual point of failure/reboot and it was the “turning off the brownout detector” line.
I deleted that and now have a fully uploaded, functioning version of the basic “ESP32-CAM Take Photo and Display in Web Server” – but not my AP/Captive Portal re-write which worked on the AI-Thinker module.
In summary, I think you’re off the hook for helping, thank you very much for your suggestions and I’ll come back if I get lost again!
 
Best wishes to you and Rui
Simon
 

Hi.
Thanks for your answer.
I think the ESP32-S3 works slightly differently than “regular” ESP32 in some details. I think this must be the case…
Probably it will work on a different ESP32 that is not an S3 model.
Regards,
Sara

You’re right, the ESP32-S3 has very different characteristics.  I’m a relative beginner to ESP32, so it’s a steep learning curve.
This was the only ESP32 Cam board I could find, with enough pins to add a couple of sensors and an E-ink screen.
If anyone reading this can suggest others, that might be helpful!
Best wishes
Simon

Hi.
I suggest this one: https://randomnerdtutorials.com/getting-started-freenove-esp32-wrover-cam/
It’s an older model with the ESP32-Wrover-E chip. Maybe you can still find it.
 
Regards,
Sara