Arduino UNO R4 Minima
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The UNO R4 Minima features a microcontroller based on the Renesas RA4M1 (Arm® Cortex®-M4) with an operating voltage of 5 V. It has 14 digital I/O, 6 analog inputs with up to 14-bit resolution, a clock speed of 48 MHz, and 32 kB SRAM, 256 kB flash memory & 8 kB of EEPROM.
It features a DAC for audio projects, RTC for accurate time tracking and HID for emulating a keyboard/mouse. The barrel jack plug (VIN) supports voltages at up to 24V, making it compatible with common higher voltage adapters.
The UNO R4 Minima offers expanded memory capabilities, including 256 kB flash, 32 kB SRAM, and 8 kB data memory (EEPROM). Operating at 5 V, this board ensures compatibility with UNO form factor accessories designed for the same voltage. While previous UNO shields can be used, software compatibility may vary due to the microcontroller change. Experience the UNO R4 Minima’s cutting-edge performance and enhanced features today.
Applications
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High-performance prototyping
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Industrial automation systems
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Sensor fusion and edge computing
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Advanced robotics and motion control
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Real-time data processing and control systems
Features:
- 32-bit development board, being previously based on 8-bit AVR
- The board features the standard 14 digital I/O ports, 6 analog channels
- dedicated pins for I²C, SPI and UART connections.
- Larger memory:
- 8 times more flash memory (256 kB)
- 16 times more SRAM (32 kB).
- Easy power management:
- The UNO R4 has a barrel jack connector and supports input voltages from 6-24 V.
- This connector is widely popular and removes the need for additional circuitry required to step down the voltage.
- Cross compatibility:
- The UNO form factor automatically makes it compatible with hundreds of existing third-party shields
and other accessories.
Pin Configuration:

Specification:
| Item Type: |
Dev. Board |
|---|---|
| Model Type |
Uno |
| Model No.: |
ABX00080 |
| Model |
Arduino UNO R4 Minima |
| Memory |
256 kB Flash Memory 32 kB SRAM 8 kB Data Memory (EEPROM) |
| pins: |
14x digital pins (GPIO), D0-D13 6x analog input pins (ADC), A0-A5 6x PWM pins: D3,D5,D6,D9,D10,D11 |
| Peripherals |
Capacitive Touch Sensing Unit (CTSU) USB 2.0 Full-Speed Module (USBFS) up to 14-bit ADC up to 12-bit DAC Operational Amplifier (OPAMP) |
| Power |
Recommended input voltage (VIN) is 6-24 V 5 V operating voltage Barrel jack connected to VIN pin Power via USB-C® at 5 V Schottky diodes for overvoltage and reverse polarity protection |
| Communication |
1x UART (pin D0, D1) 1x SPI (pin D10-D13, ICSP header) 1x I²C (pin A4, A5, SDA, SCL) 1x CAN (pin D4, D5, external transceiver is required) |
| GTIN |
7630049203907 |
| Shipping Weight | 0.03 kg |
| Shipping Dimensions | 10 × 8 × 4 cm |
Package Includes:-
1 x Arduino UNO R4 Minima Board