If you have the OV7670 camera module and the ESP-WROVER-KIT board, you can attach the camera module into the board directly. You can see my wiring in Figure 8.9. Technically, our camera module and the ESP32 board are wired based on the table in Figure 8.7:
Figure 8.9: Attaching the OV7670 camera module into the ESP-WROVER-KIT v4 board
Next, we will develop a program to implement our project.