The Arduino Uno R4 Minima (ABX00080) is a significant update to the Uno series, featuring a 32-bit ARM microcontroller, the Renesas RA4M1, which marks a departure from the 8-bit microcontrollers used in previous versions. This board operates at 5V and is designed to offer a blend of increased processing power, memory, and enhanced features while maintaining compatibility with existing Uno R3 shields and accessories.

Specifications:

• Microcontroller : Renesas RA4M1 (Arm® Cortex®-M4)
• USB : USB-C® : Programming Port
• Pins:

1. Digital I/O Pins : 14
2. Analog input pins : 6
3. DAC : 1
4. PWM pins : 6
5. External interrupts : 2,3

• Communication : UART , I2C , SPI , CAN
• Power:

1. Circuit operating voltage : 5 V
2. Input voltage (VIN) : 6-24 V
3. DC Current per I/O Pin : 8 mA

• Clock speed : Main core : 48 MHz
• Memory : RA4M1 : 256 kB Flash, 32 kB RAM
• Width : 68.85 mm
• Length : 53.34 mm

Learning Resources:

UNO R4 Minima Documentation

Applications and Projects:

Exploring the potential of the Arduino Uno R4 Minima opens up a vast array of creative and practical projects. Here are some innovative ideas to get you started, demonstrating the board’s versatility:

• Smart Weather Station: Gather real-time weather data like temperature, humidity, and air pressure, displaying the information on an LCD or online for remote access.
• Home Security System: Create a DIY security setup with motion sensors, door/window sensors, and a camera module, sending instant notifications to your smartphone upon detecting unusual activity.
• Smart Plant Monitoring System: Develop a system to track environmental conditions affecting plant growth, such as temperature, light levels, and soil moisture, adjusting water and light accordingly.
• Voice-Activated Home Automation: Implement voice commands to control household appliances, lights, and other devices, making your living space more responsive and convenient.
• Smart Pet Feeder: Ensure your pets are fed on time with a device that dispenses food according to a preset schedule, which can be controlled remotely via a smartphone app.
• Interactive LED Art Installation: Combine art and technology by programming LEDs to respond to sound, touch, or motion, creating captivating light displays.
• Automated Greenhouse: Automate the climate control of a greenhouse, managing watering, humidity, and temperature to optimize plant growth conditions.
• Smart Mirror with Information Display: Transform a regular mirror into an interactive display that shows time, weather, news, and personal notifications.