The HKD D1 Mini MCU WiFi Development Board (USB-C, 4MB) is a compact, powerful, and versatile microcontroller board designed for IoT, automation, and wireless electronics projects. Based on the popular NodeMCU / ESP8266 architecture, this board provides built-in WiFi connectivity, making it ideal for smart devices, cloud-connected systems, and remote-controlled applications.
This version features a modern USB Type-C connector for reliable power delivery and data communication, along with the CH340 USB-to-Serial converter, ensuring stable programming and compatibility across Windows, Linux, and macOS systems. With 4MB flash memory, the board offers ample space for firmware, libraries, and complex applications.
Despite its small footprint, the D1 Mini is extremely capable. It provides 11 digital I/O pins that support interrupts, PWM, I C, and One-Wire protocols (except D0), as well as 1 analog input pin (3.3V max), making it suitable for interfacing with a wide range of sensors, displays, relays, motors, and modules.
Fully compatible with Arduino IDE, NodeMCU Lua, and ESP8266 toolchains, this board is beginner-friendly while still powerful enough for advanced developers. Its compact size and low power consumption make it perfect for both prototyping and permanent installations.
Whether you're building a smart home system, IoT sensor node, WiFi controller, automation project, or wireless data logger, the HKD D1 Mini USB-C board delivers reliable performance in a tiny, affordable form factor.
Key Features
- MCU Platform: NodeMCU / ESP8266-based architecture
- Wireless: Built-in WiFi connectivity
- Flash Memory: 4MB
- USB Interface: USB Type-C
- USB Driver Chip: CH340 (stable USB-to-Serial communication)
- Digital I/O Pins: 11 GPIO pins
Supports Interrupts / PWM / I C / One-Wire (except D0) - Analog Input: 1× ADC pin (3.3V max input)
- Programming Support:
Arduino IDE
NodeMCU Lua
ESP8266 SDK - Board Size: 34.1mm × 25.4mm (ultra-compact design)
- Low Power Consumption
- Breadboard Friendly Layout
Applications
- IoT devices and smart sensors
- Smart home automation
- WiFi relay controllers
- Wireless monitoring systems
- Data logging projects
- Web-controlled devices
- Robotics and automation
- Cloud-connected electronics
- Educational and training projects
Why Choose the HKD D1 Mini USB-C Board?
The HKD D1 Mini MCU WiFi 4MB USB-C board combines power, connectivity, and simplicity in a tiny package. With built-in WiFi, flexible I/O, USB-C connectivity, and broad software support, it's an excellent choice for both beginners and professionals. Whether you're prototyping or deploying a finished product, this board delivers reliable performance, easy development, and seamless integration for any wireless electronics project.
What's in the box
1 x HKD D1 Mini WiFi MCU 4MB USB-C NodeMCU Lua Board
