A Wi-Fi cam is a system that performs sensing through a camera. With the use of a camera, we can obtain the current image within a moving video format.
In this chapter, we will focus on working with a camera on an ESP32 board. Technically, we can connect a camera module on the ESP32 board through a Serial Peripheral Interface (SPI) protocol. SPI is a serial communication protocol such as UART, but SPI has a synchronous interface that uses a dedicated clock signal. SPI usually has three pins: MOSI, MISO, and CS. You can find these pins on the ESP32 board layout.
The ESP-WROVER-KIT board provides a camera connector; this is shown in Figure 8.1:
The camera connector on the ESP-WROVER-KIT board is supported by the OV7670 camera module. This module is shown in Figure 8.2; it...
