Did you develop your application any further? I'm trying to understand how to control exposure time in order to use the OV2640 in dark conditions

Came across the following project some time ago, it allows taking photos in very dark conditions

https://github.com/paoloinverse/CameraW ... troEdition

This AI-Thinker ESP32-CAM was kept in its sealed bag until yesterday, when I decided to start a new project. I was working on something with a different board, so I used the same test setup and sketch to power it ON for the first time. Its fails in every sketch when esp_camera_fb_get()() is called. ...

Thank you. It seems that removing R13 also disables the LED circuit, allowing to use GPIO4 as long as SDCards is not being used.

I have learned that GPIO4 is connected to the onboard "flash" LED of the AI Thinker ESP32CAM.

I was able to setup interrupts on GPIO16 and GPIO02 that behave correctly.

Is there a way to setup and interrupt on GPIO04 if I dont plan on using he sdcard nor the flash led?

I'm programming this AI-Thinker ESP-32CAM in the Arduino IDE. Im not using any of the camera functions right now. The code below is what I have running. Passing a magnet by the reed switch increases the counter. Trying the same code on pin 4 (GPIO4) doesnt produce any result. static void IRAM_ATTR r...

This tutorial saved my ESP32Cam, which was showing the same MD5 error mention in this thread:

https://www.youtube.com/watch?v=lthKBGacyVs

Win+R
cmd.exe
python -m esptool --port COM8 write_flash_status --non-volatile 0

(replace 8 with the number of you Port)

Ive had success taking a photo and saving it to an SDCard but not when using an i2c connected RTC to take the photo at specific intervals. I havent been able to adjust the time, it always prints 21h00 when I do DateTime now = rtc.now(); Serial.print("rtc time: "); Serial.print(now.hour(), DEC); Seri...

Two more photos of the DS3231 module:

Only the DS3231 chip is needed, plus two 10k pull-up resistors for SDA and SCL, and the CR2032 cell. When an alarm is set and SQW is HIGH, the P-Channel Mosfet is open and the device is off, the quiescent current is very low which allows for 5 days of a photo being sent to Telegram every 2min. There...