Arduino UNO Rev4 Minima

Name: Arduino UNO Rev4 Minima
Brand: Arduino
SKU: ARD017
Price: 29.95 EUR
Availability: PreOrder

Arduino Official Boards (Genuine)

Reference: ARD017

Part.No: ABX00080

€29.95

Available on request

Delivered within 3-5 days

The Arduino UNO R4 Minima is the next generation of the UNO — powered by the Renesas RA4M1 (Arm Cortex-M4 @ 48MHz), with 256kB Flash and 32kB RAM in the classic UNO form factor. Full shield compatibility, USB-C, CAN bus, and DAC — everything you need, without unnecessary extras.

⚡ RA4M1 Cortex-M4 @ 48MHz — 3× faster than UNO Rev3
💾 256kB Flash, 32kB RAM — 8× more memory than ATmega328P
🔌 USB-C, CAN bus, DAC, I2C/SPI/UART, 5V operation
🇨🇾 Fast shipping within Cyprus

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Description
Product Details

Arduino UNO R4 Minima — The Next Generation UNO with Renesas RA4M1

The Arduino UNO R4 Minima (SKU: ABX00080) marks the most significant upgrade in the UNO's history: it replaces the legendary ATmega328P with the modern Renesas RA4M1 (Arm Cortex-M4 @ 48MHz) — while maintaining full pinout compatibility with existing UNO shields. The result is a board that runs up to 3× faster, with 8× more Flash and 16× more RAM, while adding USB-C, CAN bus, and DAC that were absent on the Rev3. The "Minima" in the name means it focuses on performance without built-in Wi-Fi/BT — the connectivity version is the UNO R4 WiFi.

Technical Specifications

Feature	Specification
Microcontroller	Renesas RA4M1 (Arm Cortex-M4)
Clock Speed	48 MHz
Flash / RAM	256 kB / 32 kB
Operating Voltage	5V
Input Voltage (VIN)	6–24V
Digital I/O Pins	14 (6 PWM)
Analog Input Pins	6
DAC	1 (12-bit)
Communication	UART ×1, I2C ×1, SPI ×1, CAN ×1
USB	USB-C (programming port)
DC Current per I/O Pin	8 mA
Dimensions	68.85mm × 53.34mm (UNO form factor)

UNO R4 Minima vs UNO Rev3 — How big is the upgrade?

	UNO R4 Minima	UNO Rev3
MCU	RA4M1 Cortex-M4	ATmega328P
Speed	48 MHz	16 MHz
Flash	256 kB	32 kB
RAM	32 kB	2 kB
USB	USB-C	USB-B
CAN bus	✓	✗
DAC	✓ (12-bit)	✗
Input voltage	6–24V	7–12V
Shield compatibility	✓ UNO pinout	✓ UNO pinout

Who is it for?

Students upgrading their skills: If you've already learned Arduino with the UNO Rev3, the R4 Minima is the natural next step — same pinout, same IDE, much more power for more complex robotics, automation, and signal processing projects.
Educational institutions: Ideal for labs upgrading from UNO Rev3 without changing existing shields and equipment. The 5V operating voltage ensures direct compatibility with existing sensors and shields.
Makers & engineers: CAN bus for automotive & industrial projects, DAC for audio & signal generation, VIN up to 24V for direct connection to industrial power supplies — the R4 Minima opens doors that were closed to the Rev3.

Frequently Asked Questions

What is the difference between UNO R4 Minima and UNO R4 WiFi?
Both boards use the same Renesas RA4M1 MCU. The R4 WiFi adds built-in Wi-Fi, Bluetooth LE, and a 12×8 LED matrix. The R4 Minima is the version without these extras — ideal when you don't need wireless connectivity and want a lower cost or simpler design.

Are existing UNO shields compatible with the R4 Minima?
Yes. The UNO R4 Minima maintains the same UNO pinout, so most UNO shields work normally. Note: some older 5V shields may have compatibility issues due to logic-level differences — always check the shield's documentation.

Do I need a new USB cable for the R4 Minima?
Yes. The UNO R4 Minima uses USB-C instead of the USB-B connector of the classic UNO Rev3. You will need a USB-C cable (USB-A to USB-C or USB-C to USB-C depending on your computer).

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