muNico (μNico)

Your pen-drive sized development companion. Discover our μNico board family featuring the powerful CH32V003 RISC-V processor in an ultra-compact USB stick form factor. Professional hardware solutions that deliver USB-HID capabilities, Arduino IDE compatibility, and complete prototyping ecosystem for innovative embedded projects.

μNico Development Board

We offer the innovative μNico development board family that combines the powerful CH32V003 RISC-V processor with an ultra-compact pen-drive form factor. Our flagship design features software-defined USB-HID capabilities, 4-pin communication support, and extensive prototyping compatibility. With built-in Arduino IDE support, CH32V003FUN compatibility, and RV003USB capabilities across the entire μNico range, our fully open-source designs help you increase system integration, portability and performance while maintaining the smallest possible footprint for embedded development projects.

Why Choose μNico Family?

Revolutionary features across all μNico board variants

RISC-V Processor

RISC-V Powered

CH32V003 RISC-V processor capable of performing complex tasks with exceptional efficiency

USB-HID

USB-HID Support

Software-defined USB-HID capabilities with help of rv003usb by CNLohr

Compact Design

Pen-Drive Form Factor

Ultra-compact USB stick design for maximum portability and convenience

On-Board LED

On-Board LED

Built-in LED that can be configured for various output methods and debugging

Extended Programming Compatibility

The μNico board family supports multiple programming environments and development frameworks. Our CH32V003 variant can be programmed with Arduino IDE, CH32V003FUN by Charles Lohr, WCH's official toolchain, and all distributions compatible with the CH32V003 ecosystem. Future variants will maintain similar versatile programming support.

Arduino IDE CH32V003FUN WCH Toolchain C/C++ RV003USB
Programming Compatibility

μNico Board Family

Explore our complete range of μNico development boards and accessories

μNico CH32V003
AVAILABLE
RISC-V POWERED

μNico CH32V003

The flagship μNico board powered by the CH32V003 RISC-V processor. Features USB-HID capabilities, compact pen-drive form factor, and complete Arduino IDE compatibility.

CH32V003 RISC-V 16KB Flash USB-HID Arduino IDE
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μNico Case
ACCESSORY
PROTECTION

μNico Case

Custom-designed 3D printed case for μNico boards, providing protection while maintaining the pen-drive aesthetic.

3D Printed Custom Fit LED Access
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μNico Header Shield
ACCESSORY
PROTOTYPING

μNico Header Shield

Breadboard-friendly header extender that converts the 1.27mm pitch to standard prototyping-friendly spacing.

Breadboard Compatible Pin Breakout Easy Prototyping
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WCH-Link Programmer
PROGRAMMER
DEVELOPMENT TOOL

WCH-Link Programmer

Official WCH single-wire debugging programmer for CH32V003 series. Essential tool for initial programming and advanced debugging capabilities.

Single Wire Debug Official WCH Multi-Platform Professional Grade
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μNico CH32V003 Technical Overview

  • Processor: CH32V003 RISC-V
  • Flash Memory: 16 KB
  • RAM: 2 KB
  • ADC: 10-bit, 8 channels
  • UART: 1
  • I2C: 1
  • SPI: 1
  • Form Factor: Pen-drive USB
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μNico Board

Fully Open Source Family

The entire μNico board family is completely open source hardware, designed with transparency and community collaboration in mind. All designs, schematics, and documentation are freely available with OSHWA certification.

Open Source Hardware OSHWA Certified KiCad