Robotics and CAN-bus motor control
1 CAN interface — talk to motor drivers and ODrive/VESC-style controllers directly.
Engineering inference
Arduino S.r.l.
Arduino UNO R4 Minima
UNO-form-factor board with Renesas RA4M1 (48 MHz Cortex-M4F, 256 KB flash, 32 KB SRAM, 8 KB EEPROM) at 5 V logic; USB-C, SWD/JTAG header, CAN (external transceiver), 12-bit DAC, OPAMP, 6–24 V VIN buck.
ABX00080Development boardPrice$20.00Arduino Store (USA) · in stock
Buy at Arduino Store (USA) Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 20
- Board I/O voltage
- 5 V
- Board flash capacity
- 256 KiB
- Board SRAM capacity
- 32 KiB
- Board operating range
- -40 to 85 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Custom USB devices (HID, MIDI, serial)
USB is on the main chip (R7FA4M1AB3CFM#AA0), so the board can enumerate as a keyboard, MIDI device or CDC serial port.
Engineering inference5 V sensors, shields and legacy peripherals
5.0 V I/O drives 5 V logic directly — no level shifting.
Engineering inferenceArduino shield ecosystem
Arduino Uno-compatible headers accept existing shields.
Engineering inferenceLearning and fast prototyping
Programs from Arduino IDE, Arduino Cloud.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
R7FA4M1AB3CFP
Renesas Electronics
4540bf68-6178-5e35-9e3c-e6dc50dfed79--mcu- Architecture
- Arm Cortex-M4 with FPU
- Documented clock
- 48 MHz
- Chip / in-package flash
- 256 KiB
- On-chip SRAM
- 32 KiB
buck converter
ISL854102FRZ-T
Renesas (Intersil)
4540bf68-6178-5e35-9e3c-e6dc50dfed79--u2esd protection
PRTR5V0U2X,215
Nexperia
4540bf68-6178-5e35-9e3c-e6dc50dfed79--d4schottky diode
PMEG6020AELRX
Nexperia
4540bf68-6178-5e35-9e3c-e6dc50dfed79--d2FAQ
Arduino UNO R4 Minima questions
What microcontroller does the Arduino UNO R4 Minima use?
The Arduino UNO R4 Minima is built around the R7FA4M1AB3CFP, alongside ISL854102FRZ-T, PRTR5V0U2X,215, PMEG6020AELRX.
How many GPIO pins does the Arduino UNO R4 Minima have?
20 GPIO pins are exposed. Xirkit documents 48 board pins, 28 of them with pin-level electrical limits.
Are the Arduino UNO R4 Minima I/O pins 5 V tolerant?
No. The I/O pins are not 5 V tolerant — they run at 5 V logic; use a level shifter for 5 V signals. Input-high threshold: ≥ 4 V.
How much current can a Arduino UNO R4 Minima GPIO pin source?
Documented output-high current per pin: ≤ -4 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Arduino UNO R4 Minima?
Supply range 4.8–24 V. Power inputs: VIN (6–24 V).
How much does the Arduino UNO R4 Minima cost?
From $20 at Arduino Store (USA). Prices are observed unit prices before tax and shipping.
What are the Arduino UNO R4 Minima dimensions?
68.58 × 53.34 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the Arduino UNO R4 Minima support?
control, gpio, system, adc, dac, opamp, interrupt, touch, i2c, timer, pwm, uart_spi_i2c, spi, comparator, lcd, analog, led, usb_can, i2s, can, uart, debug, nc, usb.
How do I program the Arduino UNO R4 Minima?
Supported frameworks: Arduino IDE, Arduino Cloud.
Where does this Arduino UNO R4 Minima data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources
Where these values come from
- Arduino UNO R4 Minima datasheet — Arduino S.r.l.
- Arduino Store (USA) listing