Arduino® UNO R4 Minima
Next-generation Microcontroller:
Powered by the Renesas RA4M1 (32-bit ARM® Cortex®-M4) running at 48 MHz,
featuring 256 KB Flash and 32 KB RAM — a major performance upgrade from the UNO R3.
Enhanced Power with Full Compatibility:
Maintains 5V logic and the same pin layout as the UNO R3,
ensuring compatibility with existing shields and accessories.
Expanded I/O Options:
Includes 14 digital I/O pins, 6 analog inputs, and multiple PWM channels,
ideal for controlling motors, sensors, and automation systems.
Voltage Detection Circuit:
Built-in voltage monitoring for improved system stability and safety.
Modern Connectivity:
Features a USB Type-C port for programming and power (5V–9V),
with an onboard CH340N chip for reliable serial communication.
Comprehensive Communication Interfaces:
Supports UART, I²C, SPI, DAC (12-bit), and ADC (14-bit),
offering wide flexibility for IoT, robotics, and data acquisition projects.
No Wi-Fi Module (Simplified Design):
The Minima version focuses on affordability and simplicity —
perfect for education, prototyping, and core electronics learning.
| รายการ (Item) | รายละเอียด (Specification) |
|---|---|
| Microcontroller | Renesas RA4M1 (Arm Cortex-M4, 48 MHz) |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Operating Voltage | 5V |
| Input Voltage | 6–24V |
| Digital I/O Pins | 14 (12 PWM) |
| Analog Inputs | 6 |
| Communication Interfaces | UART, I²C, SPI, DAC (12-bit), ADC (14-bit) |
| USB Port | USB Type-C |
| Onboard LED | Yes (Status indicator) |
| Dimensions | 68.6 × 53.4 mm |
| Wi-Fi / BLE | Not available |
1 × Arduino UNO R4 WiFi Board
1 × USB Type-C Cable (optional)
1 × Quick Start Guide