
ARDUINO UNO R4
The past and the future are एक
User-friendly and powerful, एक R4 boards combine the high quality of Arduino official products and support with local manufacturing, ensuring faster delivery, wider availability, and competitive prices.
एक R4 MINIMAएक R4 WiFi
The past and
the future are एक
User-friendly and powerful, एक R4 boards combine the high quality of Arduino official products and support with local manufacturing, ensuring faster delivery, wider availability, and competitive prices.
Arduino एक R4 is a 32-bit microprocessor offering top speed, memory, connectors and connectivity options. Like all UNO boards, it’s high tech made accessible for beginners, and suitable even for advanced AI projects.
Stay in contact!Why choose
Arduino एक R4?
Your next amazing project is just a step away!
Dive into exciting projects with the एक R4 WiFi and Minima.
Get inspired, start building, and let your imagination lead the way.

Create stunning LED animations with Arduino UNO R4 WiFi (by Kamitronix).
Design, download and watch your custom animation come to life.
The best prototyping and learning tool
Over a decade ago, the UNO transformed makers into innovators. Now, the UNO R4 brings even greater power to you and the community. For the past 13 years, millions have used tech to create wonderful things. Today, it's time to start a new chapter. Discover inspiring stories in the maker space.
The best prototyping
and learning tool
Over a decade ago, the UNO transformed makers into innovators. Now, the UNO R4 brings even greater power to you and the community. For the past 13 years, millions have used tech to create wonderful things. Today, it's time to start a new chapter. Discover inspiring stories in the maker space.
Pick the best एक R4 for your needs
Choose between the lightweight एक R4 Minima and the full-fledged एक R4 WiFi depending on your skill level, general budget and the project you have in mind.


एक R4 WiFi
Perfect for IoT and wireless projects with its ESP32-S3 for WiFi/BLE and a 12x8 onboard LED matrix for stunning visual displays.
Both boards maintain the classic form factor, shield compatibility, 5V power supply, and enhanced memory with a 32-bit Arm® Cortex®-M4. Perfect for any prototyping needs.
- A built-in DAC for analogue output capabilities
- USB-C® connector
- HID device to simulate a mouse or a keyboard
- CAN-BUS to connect multiple peripherals
- SWD for debugging
- DSP/FPU to process signals using mathematical calculations
- OP AMP
- All the features of the Minima
- Wi-Fi® + Bluetooth® Led matrix
- Diagnostics for runtime errors
- Arduino Cloud compatibility
- Support for battery-powered RTC
- Qwiic compatible connector
Ready to explore the
new dimension of making?
Take a leap forward to push new creative limits together
