Introducing the Arduino Uno R4 Minima and Arduino Uno R4 WiFi: Innovation Redefined
At Regent Electronics, we are thrilled to introduce the latest advancements in microcontroller technology – the Arduino Uno R4 Minima and Arduino Uno R4 WiFi. These cutting-edge upgrades to the widely popular Arduino Uno R3 set a new benchmark in the world of embedded electronics, offering enhanced performance, expanded memory, and seamless connectivity for makers, hobbyists, and professionals alike.
What is the Arduino Uno R4 Minima?
The Arduino Uno R4 Minima is a game-changer, being the first UNO board to feature a 32-bit microcontroller. Powered by the Renesas RA4M1 series microcontroller (R7FA4M1AB3CFM#AA0), it boasts a 48 MHz Arm Cortex-M4 processor, ensuring high-speed performance for complex applications.
Key Features:
- Expanded Memory: 256 kB of Flash, 32 kB of SRAM, and 8 kB of EEPROM for advanced projects.
- Higher Processing Speeds: Runs significantly faster than previous models, making it ideal for real-time applications.
- Enhanced Peripheral Support: Equipped with a 12-bit DAC, CAN BUS, and an Operational Amplifier (OP AMP).
- Extended Voltage Tolerance: Supports input voltages up to 24V, simplifying power supply integration.
- HID Support: Functions as a keyboard or mouse when connected to a computer via USB.
- Backward Compatibility: While it maintains the UNO form factor, software compatibility with older shields may require adjustments due to the upgraded microcontroller.
The Arduino Uno R4 Minima is a powerful and reliable addition to the Arduino ecosystem, catering to both beginners and seasoned developers looking for enhanced capabilities.
What is the Arduino Uno R4 WiFi?
The Arduino Uno R4 WiFi takes innovation a step further by integrating wireless connectivity. It combines the robust performance of the Renesas RA4M1 microcontroller with the Espressif ESP32-S3 chip, enabling Wi-Fi and Bluetooth® capabilities for seamless IoT applications.
Key Features:
- Built-in Wi-Fi & Bluetooth®: Leverage wireless communication for smart home projects, industrial automation, and IoT applications.
- 12×8 LED Matrix: Ideal for real-time visual data representation, animations, and creative displays.
- Expanded Memory & Processing Power: Enhanced computing capability for high-performance applications.
- QWIIC Connector: Allows easy interfacing with a wide range of I2C-compatible sensors and actuators.
- VRTC & OFF Pins: Supports real-time clock (RTC) functionality and power management.
- Enhanced Debugging: The inclusion of an SWD connector simplifies debugging and monitoring.
- Error Detection System: Automatically detects runtime crashes and provides error diagnostics.
The Arduino Uno R4 WiFi is designed for those looking to take their projects to the next level, offering wireless connectivity and expanded features in a familiar form factor.
Comparison Table: Arduino Uno R3 vs. Arduino Uno R4 Minima vs. Arduino Uno R4 WiFi
| Feature | Arduino Uno R3 | Arduino Uno R4 Minima | Arduino Uno R4 WiFi |
| Microcontroller | ATmega328P (8-bit) | Renesas RA4M1 (32-bit) | Renesas RA4M1 + ESP32-S3 |
| Clock Speed | 16 MHz | 48 MHz | 48 MHz (RA4M1) + up to 240 MHz (ESP32-S3) |
| Memory (Flash/SRAM/EEPROM) | 32kB / 2kB / 1kB | 256kB / 32kB / 8kB | 256kB / 32kB / 8kB (RA4M1) + 384kB / 512kB (ESP32-S3) |
| USB Port | USB-B | USB-C | USB-C |
| GPIO Output Current | 20mA | 8mA | 8mA |
| Wireless Connectivity | No | No | Yes (Wi-Fi & Bluetooth) |
| Onboard Peripherals | 10-bit ADC | Up to 14-bit ADC, 12-bit DAC, OPAMP | Same as R4 Minima + LED Matrix, QWIIC Connector |
| Input Voltage | 7-12V | 6-24V | 6-24V |
| Communication Protocols | UART, SPI, I2C | UART, SPI, I2C, CAN | UART, SPI, I2C, CAN |
Why Choose Arduino Uno R4 Minima & R4 WiFi?
The Arduino Uno R4 series redefines the standard for makers and developers by offering superior processing power, expanded memory, and onboard peripherals. Whether you’re a beginner building your first project or an advanced developer integrating IoT functionalities, these boards provide the perfect foundation for your innovations.
Where to Buy?
Regent Electronics offers the Arduino Uno R4 Minima and Arduino Uno R4 WiFi at competitive prices. Get your hands on the latest in microcontroller technology and bring your creative ideas to life.
Final Thoughts With the Arduino Uno R4 Minima and Arduino Uno R4 WiFi, the possibilities for innovation are limitless. Experience the next generation of microcontrollers today and explore the exciting world of embedded electronics with Regent Electronics!
For more details and to explore our extensive range of electronics components, visit Regent Electronics. Stay tuned for upcoming tutorials and project ideas to help you get started with your new Arduino Uno R4!