Tips: To Use The LED Flashlight...

[frarude]

Ai-Thinker-Cam: If you want to use the LED flashlight you have to call the function led_init() somewhere in the beginning of the app_main() function. For maximum light set LEDC_TEST_DUTY to 8191.
The LED1 on the opposite PCB side is connected to GPIO 33.
Schematic can be found at https://github.com/SeeedDocument/forum_doc/raw/master/reg/ESP32_CAM_V1.6.pdf