IoTCrazy UNO R4 Minima Board with USB Cable

Overview

The IoTCrazy UNO R4 Minima is fully compatible with the official Arduino UNO R4 Minima, preserving its functions and behaviour. It keeps the same form factor, pin arrangement and 5 V operating voltage as the UNO R3, so existing shields, expansion boards and projects transfer across without modification.

What changes is everything under the hood. A Renesas RA4M1 Arm Cortex-M4 running at 48 MHz with 256 KB of flash and 32 KB of SRAM handles far more demanding work than the classic ATmega328P, and the board adds peripherals the UNO R3 never had: a 12-bit DAC, a CAN bus, operational amplifiers, an SWD debug connector and USB HID support for emulating a keyboard or mouse.

The input voltage range now extends to 24 V, which means motors, LED strips and other actuators can often share a single supply with the board. A data cable is included, so it is genuinely plug and play.

Key Features

• Fully compatible with the official UNO R4 Minima — Same functions and capabilities, at a friendlier price
• Drop-in for UNO R3 projects — Identical form factor, pin arrangement and 5 V logic
• More performance — Renesas RA4M1 at 48 MHz with substantially more memory than the ATmega328P
• New on-board peripherals — 12-bit DAC, CAN bus and operational amplifiers
• Wider input voltage — Accepts up to 24 V, so motors and LED strips can share one power source
• SWD debug connector — Step through code and inspect the system while it runs
• HID support — Emulate a mouse or keyboard over USB
• Cable included — Data cable in the box, ready to use out of the packet

Specifications

What's in the Box

• 1 × IoTCrazy UNO R4 Minima compatible board
• 1 × USB data cable