MCU Ecosystem

Two Families.
One Design Language.

From UNO-compatible development boards to pen-drive microcontrollers — AtrivaTECH’s MCU range gives you ARM and RISC-V silicon in open, sovereign hardware.

2 Families
4+ Variants
OSHWA Certified
IN Made in India
PICUNO RP2040 development board
PICUNO ARM Cortex-M0+ · UNO form factor
muNico RISC-V development board
μNico RISC-V · Pen-drive form factor
PICUNO RP2040 board top view
Family 01 — PICUNO

The UNO Reinvented

Built on the RP2040 dual-core ARM Cortex-M0+, the PICUNO keeps the UNO form factor engineers already know — and brings it forward with 5V-tolerant GPIOs, 8 MB flash, USB-C, QWIIC, and NeoPixel support. Drop it into existing shield stacks or start fresh.

RP2040 ARM Cortex-M0+ ×2 133 MHz 5V Logic 8 MB Flash USB-C QWIIC In Stock
Processor RP2040 — Dual-core ARM Cortex-M0+ @ 133 MHz
Memory 8 MB Flash · 264 KB SRAM
GPIO 26 multi-function, level-shifted to 5V
Interfaces 2× UART, 2× I2C, 2× SPI, USB-C 2.0, QWIIC
Programming MicroPython · CircuitPython · Arduino IDE · Pico SDK
Form factor UNO — shield-compatible

Board Variants

PICUNO RP2040 Available now
More variants Coming soon
Explore PICUNO Family RP2040 Specifications
muNico RISC-V pen-drive board
Family 02 — μNico

A Full MCU in Pen-Drive Form

The μNico pushes the boundary of how small a capable development board can be. Under 1.5 inches, it delivers the CH32V003 RISC-V core or the RP2350 ARM core with software-defined USB-HID, an on-board LED, and a 4-pin interface header — all OSHWA-certified open hardware.

CH32V003 RP2350 — Coming Soon RISC-V RV32EC USB-HID < 1.5″ form factor OSHWA IN000053
RISC-V variant CH32V003 — RV32EC core @ 48 MHz
ARM variant RP2350 — Dual Cortex-M33 @ 150 MHz Coming Soon
Flash 16 KB (CH32V003) · 8 MB (RP2350)
USB Software USB-HID via rv003usb & CH32V003FUN
Programming Arduino IDE · CH32V003FUN · MicroPython (RP2350)
Certification OSHWA Certified Open Hardware — UID IN000053

Board Variants

μNico CH32V003 RISC-V · Available now
μNico RP2350 ARM · Coming soon
Explore μNico Family CH32V003 Specifications
Side by side

Which board is right for you?

A direct comparison across the current lineup.

PICUNO RP2040 μNico CH32V003
Architecture ARM Cortex-M0+ RISC-V RV32EC
Cores & Speed Dual-core · 133 MHz Single-core · 48 MHz
Flash 8 MB 16 KB
SRAM 264 KB 2 KB
Form Factor UNO (shield-compatible) Pen-drive (< 1.5″)
GPIO Count 26, 5V-tolerant 18
USB Native USB-C Software HID
Arduino IDE Yes Yes
Best for Shield-based projects, full GPIO access Ultra-compact, low-power embedded
Availability In Stock In Stock

Designed Open. Built Sovereign.

Full KiCad design files, no lock-in, OSHWA certified. AtrivaTECH hardware is open from the ground up.

OSHWA UID IN000053 KiCad Design Files CH32V003FUN Compatible Arduino IDE Ready MicroPython & CircuitPython Made in India