The Home Automation Project
The below code snippets will help you setup your ESP32 Dev board in Home Assistant.
Here is a sample code for a simple / basic config of WROVER CAM:
Link to download the sample yaml file: Click this link to download sample yaml file 

                          # Example configuration entry
                          esp32_camera:
                            external_clock:
                              pin: GPIO21
                              frequency: 20MHz
                            i2c_pins:
                              sda: GPIO26
                              scl: GPIO27
                            data_pins: [GPIO4, GPIO5, GPIO18, GPIO19, GPIO36, GPIO39, GPIO34, GPIO35]
                            vsync_pin: GPIO25
                            href_pin: GPIO23
                            pixel_clock_pin: GPIO22
                          
                            # Image settings
                            name: Wrover Camera    
                            max_framerate: 15 fps
                            idle_framerate: 1.0 fps
                            # resolution: 800x600
                            resolution: 1024x768
                            horizontal_mirror: false
                            vertical_flip: false

The following illustrates the details of the GPIO pins of the board:
Path string

Full configuration
Here is a sample code for the full ESP32 dev config of my freenove-dev-board.yaml:
Link to download the sample yaml file: Click this link to download sample yaml file 

                            esphome:
                            name: freenove-dev-board
                            friendly_name: Freenove dev board
                          
                          esp32:
                            board: esp32dev
                            framework:
                              type: arduino
                          
                          # Enable logging
                          logger:
                          
                          # Enable Home Assistant API
                          api:
                            encryption:
                              key: "KEY"
                          
                          ota:
                            password: "password"
                          
                          wifi:
                            ssid: !secret wifi_ssid
                            password: !secret wifi_password
                            manual_ip:
                              static_ip: 192.168.x.x
                              gateway: 192.168.y.y
                              subnet: 255.255.255.0
                          
                            # Enable fallback hotspot (captive portal) in case wifi connection fails
                            ap:
                              ssid: "Freenove-Dev-Board"
                              password: "password"
                          
                          captive_portal:
                              
                          # Example configuration entry
                          esp32_camera:
                            external_clock:
                              pin: GPIO21
                              frequency: 20MHz
                            i2c_pins:
                              sda: GPIO26
                              scl: GPIO27
                            data_pins: [GPIO4, GPIO5, GPIO18, GPIO19, GPIO36, GPIO39, GPIO34, GPIO35]
                            vsync_pin: GPIO25
                            href_pin: GPIO23
                            pixel_clock_pin: GPIO22
                          
                            # Image settings
                            name: Wrover Camera    
                            max_framerate: 15 fps
                            idle_framerate: 1.0 fps
                            # resolution: 800x600
                            resolution: 1024x768
                            horizontal_mirror: false
                            vertical_flip: false
                            # ...

Refer the video linked below for full step-by-step configuration


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