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Description
Arduino UNO R4 Minima – The Next-Gen Upgrade to the Classic UNO R3
The Arduino UNO R4 Minima is the latest upgrade to the world-famous Arduino UNO R3, delivering enhanced performance and expanded memory while maintaining the same form factor (68.58 x 53.34 mm).
At its core, the UNO R4 Minima features the Renesas RA4M1 (Arm® Cortex®-M4), a 32-bit microcontroller clocked at 48 MHz, offering improved processing power. It supports a 5V operating voltage, ensuring compatibility with existing Arduino UNO R3 shields and accessories.
Arduino UNO R4 Minima Specifications & Features:
✅ Microcontroller: Renesas RA4M1 (Arm Cortex-M4, 32-bit, 48MHz)
✅ Expanded Memory: 32kB SRAM & 256kB Flash Memory for complex projects
✅ Improved Analog & Digital Capabilities:
- 14-bit ADC (Analog to Digital Converter) for precise sensor readings
- DAC (Digital to Analog Converter) for audio & signal applications
- OPAMP (Operational Amplifier) for advanced circuit design
-
MPU (Memory Protection Unit) for enhanced security
✅ Onboard RTC (Real-Time Clock) – Perfect for time-sensitive applications
✅ User-Friendly Design: Ideal for beginners and professionals in IoT, robotics, and embedded systems
Why Choose Arduino UNO R4 Minima?
- Same form factor as Arduino UNO R3, ensuring seamless integration with existing projects
- Eliminates the need for external components, simplifying circuit design
- Best for DIY electronics, IoT applications, robotics, and automation
Features
Microprocessor
- Renesas RA4M1 Arm® Cortex®-M4 microprocessor @ 48MHz with a floating point unit (FPU) @ 5V operating voltage
- Real-time Clock (RTC)
- Memory Protection Unit (MPU)
- Digital Analog Converter (DAC)
Memory
- 256 KB Flash
- 32 KB SRAM
- 8 KB 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
- USB 2.0 Full Speed Module
- 14-bit ADC
- 12-bit DAC
- Operational Amplifier (OPAMP)
Power
- 6 to 24V Recommended Voltage
- 5V Operating Voltage
- Power via USB-C @ 5V
- Overvoltage and Reverse Polarity Portection with Schottky Diodes
Specification
| Microcontroller | Renesas RA4M1 (Arm® Cortex®-M4) |
| USB | USB-C® |
| Pins | 14x Digital I/O Pins 6x Analog Input Pins 1x DAC 6x PWM Pins |
| Communication | 1x USB (Programming Port) 1x UART 1x I2C 1x SPI 1x CAN Bus |
| Input Voltage | 6 to 24V |
| Operating Voltage | 5V |
| Current per I/O Pin | 8mA |
| Clock Speed | 48 MHz |
| Memory | 256 KB Flash 32 KB SRAM 8 KB EEPROM |
| Dimensions | 68.58 x 53.34 mm |
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