This code runs on the ESP32-CAM camera module

You need the ESP32 library on Arduino.  here's how to install it: https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/

The board is ESP32 Arduino/AI Thinker ESP32-CAM

Select the USB Serial port

Compile and Upload

Open the Serial Monitor at 115200 bps

The red LED on the back of the camera will flash once when it takes a photo and flashes twice when it sends it over the serial port