(Discontinued) Arduino UNO R4 Minima

Description Official Arduino UNO R4 Minima 32-bit Arm Cortex-M4 Development Board (ABX00080) The Official Arduino UNO R4 Minima marks a major evolution in the UNO family, introducing a powerful 32-bit architecture while preserving the iconic UNO form factor. Built around the Renesas RA4M1 microcontroller (R7FA4M1AB3CFM), the board is powered by a 48 MHz Arm Cortex-M4 CPU, delivering significantly improved performance, efficiency, and modern peripheral support. Compared to classic UNO boards based on 8-bit AVR microcontrollers, the UNO R4 Minima offers expanded memory with 256 kB Flash, 32 kB SRAM, and 8 kB EEPROM, enabling larger programs, more variables, and advanced applications. Operating at 5 V logic and maintaining full UNO R3 mechanical compatibility, the UNO R4 Minima works seamlessly with most existing shields and accessories. It also introduces new onboard peripherals such as DAC, CAN bus support, capacitive touch sensing, and an operational amplifier, making it an excellent choice for both learning and professional prototyping. Technical Details Item Type: Development Board Model: UNO Model Name: Arduino UNO R4 Minima Model Number: ABX00080 Main Microcontroller: Renesas RA4M1 (R7FA4M1AB3CFM) CPU Architecture: 32-bit Arm Cortex-M4 Clock Speed: 48 MHz Operating Voltage: 5 V Form Factor: Arduino UNO R3 Compatible Memory Flash Memory: 256 kB SRAM: 32 kB EEPROM (Data Memory): 8 kB Input / Output Digital I/O Pins: 14 (D0D13) Analog Input Pins: 6 (A0A5) PWM Pins: 6 (D3, D5, D6, D9, D10, D11) ADC Resolution: Up to 14-bit DAC Output: Up to 12-bit Communication Interfaces UART: 1 UART (D0, D1) SPI: 1 SPI (D10D13, ICSP Header) IC: 1 IC (A4, A5, SDA, SCL) CAN Bus: Supported on D4, D5 (external transceiver required) USB: USB-C (USB 2.0 Full-Speed) Onboard Peripherals Capacitive Touch Sensing Unit (CTSU) Operational Amplifier (OPAMP) Real-Time capable peripherals USB Full-Speed Controller (USBFS) Inbuilt HID Support Power Specifications Operating Voltage: 5 V Recommended Input Voltage (VIN): 6 24 V Barrel Jack: Connected to VIN pin (6 24 V) Power via USB-C: 5 V Protection: Schottky diodes for over-voltage and reverse-polarity protection Features First 32-bit UNO Minima board 3 faster performance than classic UNO R3 Significantly expanded Flash and SRAM Same UNO R3 form factor and shield compatibility Advanced onboard peripherals (DAC, CAN, CTSU, OPAMP) Easy power management with wide VIN range Ideal upgrade path from 8-bit UNO boards Applications Embedded systems development STEM education and learning Industrial and automation prototypes Data acquisition and signal processing CAN-based communication projects Replacement for legacy UNO designs Pin Configuration: Physical Attributes Board Form Factor: Arduino UNO Dimensions (L W): Approx. 68.6 53.4 mm USB Connector Type: USB-C Mounting: Standard UNO mounting holes Net Weight: Approx. 43 g Package Includes 1 Official Arduino UNO R4 Minima Development Board (ABX00080)