Arduino® UNO R4 Minima Original

32-Bit RA4M1 Arm Cortex-M4 Microcontroller: Powered by a Renesas RA4M1 core running at 48MHz with 32KB SRAM and 256KB Flash memory, delivering up to 3x processing speeds over classic 8-bit UNO microcontrollers.

Classic UNO REV3 Shield Compatibility: Retains the traditional 5V logic levels and familiar UNO R3 header layout, ensuring full pin-for-pin compatibility with existing standard Arduino shields and modules.

Expanded Input Voltage Range (Up to 24V): Enhanced power management accepts a wider input voltage range via the barrel jack, enabling easy integration with 12V and 24V power systems without thermal overload.

Modern USB Type-C Programming Interface: Upgraded with a sturdy USB-C connector for fast data communication, reliable board powering, and modern desktop connectivity.

Native CAN Bus & DAC Support: Features integrated CAN bus controller hardware and a true 12-bit digital-to-analog converter (DAC) output for precise analog wave synthesis and automotive/industrial networking.

Module Construction: Built on a premium multi-layer FR-4 glass epoxy printed circuit board with gold-plated headers and high-density surface-mount components.

Operating Voltage & Logic: Operating logic runs natively at standard 5V DC, matching standard UNO pin voltages for direct sensor and relay interface compatibility.

Handling Precautions: Observe standard electrostatic discharge (ESD) practices when handling. Avoid touching integrated circuit pins and surface-mount component traces directly.

Environmental Limits: Operating temperature range spans -40°C to +85°C. Keep protected from static discharge, conductive metal dust, and liquid moisture.

Cost-Effective 32-Bit Powerhouse: Position as the ideal choice for developers who need maximum raw compute power and speed of the 32-bit architecture without paying extra for wireless connectivity.

Direct Drop-In Upgrade for UNO R3: Highlight as a seamless drop-in replacement for the classic Arduino UNO REV3, letting users boost project performance without modifying existing code syntax or hardware wiring.

Recommended Cross-Sell Add-ons: Pair with Arduino UNO Expansion Shields, 12V / 24V Power Supplies, USB Type-C Cables, and Analog Sensor Breakouts.

Ideal for Budget-Friendly Embedded Projects: Perfect for high-speed signal processing, precise motor control, audio signal generation, custom test fixtures, and general robotics prototyping.