Arduino UNO R4 Minima, Renesas RA4M1, USB-C, CAN, DAC, R3-Compatible,…

Price: $17.99 - $16.59
(as of Jun 16, 2025 23:31:43 UTC – Details)

Product Specifications:

• Microcontroller: Renesas RA4M1, based on the Arm Cortex-M4 architecture.
• USB Interface: Type-C, for programming.
• Digital Pins: 14 digital I/O pins.
• Analog Pins: 6 analog input pins.
• DAC Pin: 1 DAC pin.
• PWM Pins: 6 PWM pins.
• Communication Interfaces:
  • UART: 1 UART interface.
  • I2C: 1 I2C interface.
  • SPI: 1 SPI interface.
  • CAN: 1 CAN bus.

• Operating Voltage: The board operates at 5V or 3.3V.
• Input Voltage: Input voltage range is 6-50V.
• Pin Current: Each I/O pin can handle a DC current of 8mA.
• Clock Speed: Maximum core frequency is 48 MHz.
• Memory: 256 kB Flash memory and 32 kB RAM.
• Dimensions: Width is 69mm, length is 53mm.

2X Voltage & Auto-Protection: 6-50V Ultra-Wide Input. Built-in self-recovery fuse prevents burnout from wiring errors, while dual voltage regulation (DC-DC + LDO) ensures stable 5V output even with unstable sources.
Dual Voltage & Easy Updates: 3.3V/5V Switch + BOOT Button. Adapt to 3.3V/5V sensors (vs. fixed 5V on classic UNO) without level shifters. One-click firmware upgrades via BOOT button eliminate debug tools.
Full Arduino UNO R4 Compatibility: Directly reuse UNO R4 shields and libraries. Dual connectivity (male headers + female sockets) fits personal projects and industrial modules, while the 2.54mm SWD port (vs. 1.27mm on official R4) works with standard debug cables.
Pro-Level Peripherals Built-In: 12-bit DAC, CAN Bus & HID Support – Drive industrial actuators (PLCs, LED arrays) via 24V inputs or simulate keyboards/mice through USB-C. All without extra modules – ideal for IoT hubs or robotics projects.
UNO R4 Performance with Enhanced Power: 48MHz Cortex-M4 – Match R4 Minima’s 256KB Flash for complex tasks (solar/ML), but with 50V input flexibility (vs. R4’s 24V) for extreme environments.