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Description
Arduino empowers makers’ creativity and passion for innovation with a robust new board that’s perfect for all users, from beginners to experts – allowing anyone to easily connect to the internet and create IoT projects.
Your user-friendly, accessible UNO just took a quantum leap forward: Arduino UNO R4 is a 32-bit microprocessor offering more speed, memory, connectors and connectivity options than any version of the board before. Out of this world, and into the future.
Arduino’s continued commitment to making technology accessible to everyone was the inspiration behind Arduino UNO R4 Minima: the new addition to the brand’s community-supported ecosystem offers powerful technology at an affordable price. Packing more computational power, memory and speed in the familiar form factor of the UNO at 5V operating voltage, it allows users to easily upgrade projects made with the UNO R3 or the Leonardo. What’s more, thanks to a RA4M1 microcontroller by Renesas, it can leverage two new off-the-shelf peripherals, CAN BUS and (12 bit) DAC: perfect for automation or audio projects.
Your user-friendly, accessible UNO just took a quantum leap forward: Arduino UNO R4 is a 32-bit microprocessor offering more speed, memory, connectors and connectivity options than any version of the board before. Out of this world, and into the future.
Arduino’s continued commitment to making technology accessible to everyone was the inspiration behind Arduino UNO R4 Minima: the new addition to the brand’s community-supported ecosystem offers powerful technology at an affordable price. Packing more computational power, memory and speed in the familiar form factor of the UNO at 5V operating voltage, it allows users to easily upgrade projects made with the UNO R3 or the Leonardo. What’s more, thanks to a RA4M1 microcontroller by Renesas, it can leverage two new off-the-shelf peripherals, CAN BUS and (12 bit) DAC: perfect for automation or audio projects.
UNO R4 Minima is armed with a powerful 32-bit microcontroller courtesy of Renesas. Brace yourself for increased processing power, expanded memory, and a whole new level of on-board peripherals. The best part? Compatibility with existing shields and accessories remains intact, and there's no need to make any changes to the standard form factor or 5 V operating voltage.
Features:
| CATEGORY | SPECIFICATION |
|---|---|
| Board Name | Arduino UNO R4 Minima (Clone) |
| Microcontroller | Renesas RA4M1 (Arm® Cortex®-M4) |
| Clock Speed | 48 MHz |
| Memory | 256 KB Flash, 32 KB RAM, 8 KB EEPROM |
| Operating Voltage | 5 V |
| Input Voltage Range | 6–24 V (VIN) |
| USB Connector | USB-C® (5 V) |
| Digital I/O Pins | 14 |
| Analog Input Pins | 6 (ADC 14-bit) |
| PWM Pins | 6 |
| DAC | 1 (12-bit) |
| UART | 1 (D0, D1) |
| SPI | 1 (D10–D13, ICSP header) |
| I2C | 1 (A4, A5, SDA, SCL) |
| CAN BUS | 1 (D4, D5; external transceiver required) |
| Peripherals | Capacitive Touch Sensing Unit (CTSU), Operational Amplifier (OPAMP), USB 2.0 Full-Speed Module (USBFS), Real-Time Clock (RTC), Memory Protection Unit (MPU) |
| Form Factor / Compatibility | UNO form factor, compatible with existing shields and projects |
| Special Features | SWD connector for debugging, HID support (mouse/keyboard simulation) |
| Description | Enhanced UNO clone with wider input voltage range, on-board DAC, CAN BUS, OPAMP, and debugging features for advanced projects |
Package Includes:
1 x Arduino UNO R4 Minima Generic Board
1 x Arduino UNO R4 Minima Generic Board

