Comments on: ESP32-CAM Take Photo and Save to MicroSD Card

By: Dirk

Dirk — Sat, 18 Oct 2025 18:07:34 +0000

Hello,

Great work you’re doing here.

I have a problem with an ESP32-S module: ESP32-D0WDQ6-V3, an AI Thinker clone with an OV2640 camera module.
When I load the module with the CameraWebserver from “Arduino Examples,” it works perfectly (Arduino IDE 2.3.6).
When I upload your code from “ESP32-CAM Take Photo and Save to MicroSD Card,” everything works as it should.
The only problem is that the images are color-stained. The images are red and especially green, but the color white is missing.
The GPIOs are the same in both use cases. The resolution of the images generated in both cases is UXGA.
Is this a known issue?
I also tried it with two modules to rule out the hardware.

By: Sara Santos

Sara Santos — Mon, 14 Jul 2025 09:15:34 +0000

In reply to Julio Fortti. Which errors do you get?

By: Julio Fortti

Julio Fortti — Sun, 13 Jul 2025 23:48:31 +0000

In reply to Sara Santos. Thanks a lot Sara, I change pins numbers, but the code doesn't work.

By: Sara Santos

Sara Santos — Thu, 10 Jul 2025 15:34:19 +0000

In reply to Julio Fortti.

Hi.
I recommend that you carefully check the pinout of your board.
You’ll need to adjust all pin definitions.
Then, double-check that your board uses a OV2640 camera. Otherwise, it won’t be compatible with our code.

Regards,
Sara

By: Julio Fortti

Julio Fortti — Thu, 10 Jul 2025 14:23:05 +0000

Hi, I using the ESP32-S3-A7670E-4G model, and it’s difficult to manage the camera.
Could someone help me with this afaire.

Tnaks in advance

By: butch

butch — Mon, 12 May 2025 15:30:26 +0000

Please note that there are two “RST” buttons. One on the motherboard and one on the cam board. When using the IO0 long press and short RST press methods above, be sure to use the RST button on the cam board. The RST button on the motherboard does NOT work.

By: Rodrigo Trejo

Rodrigo Trejo — Wed, 26 Mar 2025 22:53:19 +0000

Hi, awesome project, I was checking the esp32 also can use USB to capture video with lib libuvc, but is there a way we can use this USB webcam to take photos and storage it on the SD? even more, I would like to atach multiple USB webcams to take photos like Nishika 8000 Style photos but I’m lost with the USB multiple webcam part

By: Sara Santos

Sara Santos — Mon, 11 Nov 2024 14:42:26 +0000

In reply to Julien.

Hi.
I didn’t test it with that board.
Regards,
Sara

By: Julien

Julien — Mon, 11 Nov 2024 13:46:07 +0000

This does not work with seeed esp32s3 sense.

output is a loop printing this:

20:44:18.637 -> ESP-ROM:esp32s3-20210327
20:44:18.637 -> Build:Mar 27 2021
20:44:18.637 -> rst:0x3 (RTC_SW_SYS_RST),boot:0x28 (SPI_FAST_FLASH_BOOT)
20:44:18.637 -> Saved PC:0x40377234
20:44:18.637 -> SPIWP:0xee
20:44:18.637 -> mode:DIO, clock div:1
20:44:18.637 -> load:0x3fce3818,len:0x109c
20:44:18.637 -> load:0x403c9700,len:0x4
20:44:18.637 -> load:0x403c9704,len:0xb50
20:44:18.637 -> load:0x403cc700,len:0x2fe4
20:44:18.637 -> entry 0x403c98ac

By: Sara Santos

Sara Santos — Mon, 06 May 2024 11:21:40 +0000

In reply to redhat.

Hi,.
This code only works with OV2640 cameras.
Regards,
Sara