Book Image

Internet of Things Projects with ESP32

By : Agus Kurniawan
Book Image

Internet of Things Projects with ESP32

By: Agus Kurniawan

Overview of this book

ESP32 is a low-cost MCU with integrated Wi-Fi and BLE. Various modules and development boards-based on ESP32 are available for building IoT applications easily. Wi-Fi and BLE are a common network stack in the Internet of Things application. These network modules can leverage your business and projects needs for cost-effective benefits. This book will serve as a fundamental guide for developing an ESP32 program. We will start with GPIO programming involving some sensor devices. Then we will study ESP32 development by building a number of IoT projects, such as weather stations, sensor loggers, smart homes, Wi-Fi cams and Wi-Fi wardriving. Lastly, we will enable ESP32 boards to execute interactions with mobile applications and cloud servers such as AWS. By the end of this book, you will be up and running with various IoT project-based ESP32 chip.
Table of Contents (12 chapters)

Reviewing camera modules

Technically, we can use any camera module with supported SPI or I2C protocols. One of the camera modules with this feature is the OV7670 module. This module is manufactured by OmniVision; you can find its datasheet at

There are two OV7670 modules available on the market: the OV7670 module with FIFO, and the OV7670 module without FIFO. The OV7670 module with FIFO can enhance video processing.

You can identify whether the OV7670 camera module is a FIFO model or not by checking the back of the camera module. The OV7670 camera module with FIFO has an additional chip on the back of the module. Figure 8.3 shows the OV7670 camera module without FIFO:

Figure 8.3: The back of the OV7670 camera module

Figure 8.4 shows the OV7670 camera module with FIFO. This module has an AL422B IC that uses FIFO to enhance video...