Arduino Uno R4 Minima
Best high-performance microcontroller for hobbyists upgrading from classic development boards.
This board takes the classic form factor you already know and injects it with the processing power needed for modern, demanding projects. You gain significant speed and HID capabilities while keeping full compatibility with your existing shield collection, making it the ultimate drop-in upgrade for your workbench.
$18.95
at
Jameco Electronics
Who it's for
- Developers needing faster processing and more memory for complex code
- Makers reusing existing shields and hardware accessories
- Budget-conscious engineers building standalone, wired hardware projects
Who should skip it
- Users requiring built-in internet or cloud connectivity
- Programmers relying on legacy or niche Arduino libraries
- Audio enthusiasts needing advanced analog signal generation
Performance breakdown
Processing Power
The Cortex-M4 core handles demanding logic far better than classic boards.
Shield Compatibility
Retains the iconic form factor for seamless integration with existing hardware.
Connectivity Versatility
USB-C and HID support make peripheral integration intuitive and modern.
Power Flexibility
Wide voltage input range accommodates diverse power sources with ease.
Debugging Efficiency
Dedicated SWD connector simplifies troubleshooting for more complex project builds.
Analog Precision
The 12-bit DAC provides significantly improved resolution for analog signal output.
Key Specs
Form Factor
UNO (Compatible with R3 shields)
Operating Voltage
5V
Input Voltage
Up to 24V
Microcontroller
Renesas RA4M1 (Cortex-M4)
Clock Speed
48 MHz
Flash Memory
256 KB
SRAM
32 KB
Digital I/O Pins
14
PWM Pins
6
Analog Input Pins
6
Know before you buy
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Ask Metto anything about the Arduino Uno R4 Minima before you decide.
