ESP32 WiFi Bluetooth Dev Board UNO D1 R32 CH340G 4MB Flash

ESP32 WiFi & Bluetooth Development Board for Arduino UNO D1 R32

Take your microcontroller projects to the next level with this powerful ESP32-based Development Board. Designed in the familiar Arduino UNO form factor, this board combines dual-mode WiFi + Bluetooth 4.0 connectivity with a generous 4MB Flash and the reliable CH340G USB-to-Serial chip — making it an ideal choice for hobbyists, makers, and engineers alike.

Whether you're building IoT devices, home automation systems, wireless sensors, or prototyping your next big project, this board delivers the processing power and connectivity you need in a compact, plug-and-play package.

Key Features

• Dual Connectivity: Built-in WiFi (802.11 b/g/n) and Bluetooth 4.0 for versatile wireless communication
• 4MB Flash Memory: Ample storage for your sketches and data
• CH340G USB Bridge: Plug-in USB driver support for seamless connection to Windows, macOS, and Linux
• Arduino UNO Pin-Compatible: Drop-in replacement form factor — works with most UNO shields
• Wide Supply Voltage: Accepts 5V–12V input for flexible power options
• Wide Operating Temperature: -40°C to +85°C for demanding environments
• SMD Package: Compact and robust surface-mount design
• Arduino IDE Compatible: Program using the familiar Arduino IDE with ESP32 board support

Technical Specifications

What's in the Box?

• 1 × ESP32 UNO D1 R32 Development Board (CH340G)

Who Is This For?

This development board is perfect for:

• Arduino beginners stepping up to WiFi & Bluetooth projects
• IoT prototyping and smart home automation
• Wireless sensor networks and data logging
• Robotics and remote control applications
• STEM education and maker communities

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Frequently Asked Questions

Q: Is this ESP32 development board compatible with the Arduino IDE?

A: Yes! This ESP32 UNO D1 R32 board is fully compatible with the Arduino IDE. Simply install the ESP32 board support package via the Arduino Board Manager and you can start programming immediately using familiar Arduino syntax and libraries.

Q: Do I need to install drivers for the CH340G USB chip?

A: Most modern operating systems (Windows 10/11, macOS, Linux) will automatically detect the CH340G chip. For older systems, a free CH340 driver can be downloaded online. Once installed, the board appears as a standard COM/serial port.

Q: Can I use existing Arduino UNO shields with this board?

A: Yes — the board uses the standard Arduino UNO pin layout, so most Arduino shields are physically compatible. Note that the ESP32 operates at 3.3V logic, so check your shield's voltage compatibility before use.

Q: What is the operating voltage and input voltage range?

A: The board accepts a supply voltage of 5V to 12V, making it flexible for use with USB power, battery packs, or bench supplies. The ESP32 core itself operates at 3.3V logic.