ESP32 Development Board – WiFi & Bluetooth USB Security Key Dongle

Take your embedded projects to the next level with this compact yet powerful ESP32 Development Board. Featuring built-in WiFi and Bluetooth connectivity, a 4MB Flash memory, and a CH343P USB-to-Serial bridge over a convenient Mini USB interface, this board is engineered for makers, developers, and electronics enthusiasts who demand reliable wireless performance in a small form factor.

Whether you're building IoT devices, prototyping smart home systems, or developing a hardware security key application, this ESP32 module delivers the processing power and connectivity you need. The SMD package design keeps your build tidy, while the customizable firmware support means you can adapt the board to virtually any project requirement.

Key Features

Dual-Mode Wireless: Integrated WiFi (802.11 b/g/n) and Bluetooth (Classic + BLE) in a single module
4MB Flash Storage: Ample onboard flash for firmware, data logging, and application code
CH343P USB-to-Serial Chip: High-compatibility serial bridge for stable, fast flashing and debugging
Mini USB Interface: Convenient connection for power and data with widely available cables
Hardware Security Key Functionality: Supports USB-based authentication and security key use cases
SMD Package: Compact, board-mount-ready design ideal for integration into larger assemblies
Customizable: Open to firmware customization — tailor the board to your exact application
Broad Compatibility: Works with Arduino IDE, ESP-IDF, MicroPython, and other popular development environments

Specifications

Wireless	WiFi 802.11 b/g/n + Bluetooth Classic & BLE
Flash Memory	4MB
USB Interface	Mini USB
USB-to-Serial Bridge	CH343P
Package Type	SMD Module
Application	Computer / Embedded Systems / IoT
Condition	New
Customizable	Yes

What's in the Box?

1 × ESP32 Development Board (USB Security Key Dongle)

Perfect For

IoT prototyping and smart home development
Hardware security key and USB authentication projects
Wireless sensor networks and data logging
Embedded systems education and hobbyist projects
USB-connected microcontroller applications

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Frequently Asked Questions

Q: What is the ESP32 Development Board WiFi Bluetooth USB Security Key used for?

A: This ESP32 Development Board is a versatile microcontroller module featuring integrated WiFi and Bluetooth connectivity. It is commonly used for IoT prototyping, wireless sensor nodes, smart home automation, USB hardware security key projects, and a wide range of embedded development applications. It supports popular frameworks including Arduino IDE, ESP-IDF, and MicroPython.

Q: What is the CH343P chip on this board and why does it matter?

A: The CH343P is a high-compatibility USB-to-Serial bridge chip that enables seamless communication between the ESP32 module and your computer via the Mini USB port. It ensures stable, fast firmware flashing and reliable serial debugging — making your development workflow smoother across Windows, macOS, and Linux.

Q: Is this board compatible with the Arduino IDE?

A: Yes. This ESP32 development board is compatible with the Arduino IDE (using the ESP32 board package), as well as Espressif's ESP-IDF framework and MicroPython. Simply install the appropriate board drivers and CH343P USB-to-Serial drivers on your system to get started.

Q: Can the firmware on this ESP32 board be customized?

A: Absolutely. This board is fully customizable — you can flash your own firmware, modify existing projects, or build entirely new applications. The 4MB onboard Flash provides ample space for custom code, configuration data, and file storage.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.