ESP32

Neville Leah asked 8 months ago

Hi, working my way through the ESP32CAM course, purchased the identical equipment to the course, successfully uploaded the code to the esp32CAM. Get instruction:
“Leaving…” “Hard resetting via RTS pin…”
All seems fine!
Disconnect pin0 to GRD link.
Open Serial Monitor. Window scrolls the “Detected camera not supported”. “camera probe failed with error 0x20004”
Have tried it with MacBook Pro and Win10 PC.
Have used 3 different USB leads.
Have updated Arduino IDE plus ESP32 libraries.
Has anybody else met this?
Thanks in anticipation
Nev

5 Answers

0 Vote Up Vote Down

Steve Mercer answered 8 months ago

I did have this problem when I first started. I can’t recall what fixed it but I think it was the combination of USB cable and FTDI adapter.

These are the items I ordered which work on a MacBook Pro 2016:
https://www.amazon.com/gp/product/B00UUBRX0Y
https://www.amazon.com/gp/product/B082NKCXCN

Also, the troubleshooting guide at https://randomnerdtutorials.com/esp32-cam-troubleshooting-guide/ is really helpful.

0 Vote Up Vote Down

Sara Santos Staff answered 8 months ago

Hi Neville.
Steve is right.
Additionally, sometimes just pressing the RST button twice solves the problem.
It may also be that your camera ribbon is not connected properly to the board or it may be broken. What is the model of the ESP32 camera that you’re using?
Regards,
Sara

0 Vote Up Vote Down

Neville Leah answered 8 months ago

Thanks Steve!
Sarah
The camera board is:
ESP32 A1 Thinker FCC ID: 2AHMR-ESP32S- WiFi + SoC Inside
The camera ribbon: AF2569 0927XB
The programmer is: USB to TTL FT232RL
The serial monitor print-out shows:

16:25:05.925 -> ets Jun  8 2016 00:22:57
16:25:05.925 -> 
16:25:05.925 -> rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
16:25:05.925 -> configsip: 0, SPIWP:0xee
16:25:05.925 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
16:25:05.925 -> mode:DIO, clock div:1
16:25:05.925 -> load:0x3fff0018,len:4
16:25:05.925 -> load:0x3fff001c,len:1216
16:25:05.925 -> ho 0 tail 12 room 4
16:25:05.925 -> load:0x40078000,len:9720
16:25:05.925 -> ho 0 tail 12 room 4
16:25:05.925 -> load:0x40080400,len:6352
16:25:05.959 -> entry 0x400806b8
16:25:07.972 -> 
16:25:08.007 -> [E][camera.c:1049] camera_probe(): Detected camera not supported.
16:25:08.007 -> [E][camera.c:1249] esp_camera_init(): Camera probe failed with error 0x20004

I’ve also opened the ribbon clamp, blown out the socket, replaced the ribbon and closed the clamp firmly.
Still no joy!
Thanks for any suggestions
Nev

0 Vote Up Vote Down

Neville Leah answered 8 months ago

Nev again,
I’ve just repeated the removal of the camera ribbon but this time cleaned the contacts with isopropyl alcohol.
It works.
Must have been corrosion or grease on the contact strip!
Thanks to Steve and Sarah again
Nev

0 Vote Up Vote Down

Sara Santos Staff answered 8 months ago

Great!
I’m glad you solved the problem.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara