ARDUINO UNO EK R4
The new dimension of making
Your user-friendly, accessible EK just took a quantum leap forward: Arduino UNO EK R4 is a 32-bit microprocessor offering more speed, memory, connectors and connectivity options than any version of the board before.
Arduino UNO R4 is now Arduino EK R4
* Made in India
Your next amazing project is just a step away!
Dive into exciting projects with the UNO EK R4 Wi-Fi and Minima.
Get inspired, start building, and let your imagination lead the way.
Create stunning LED animations with Arduino UNO EK R4 Wi-Fi (by Kamitronix).
Design, download and watch your custom animation come to life.
Discover how to build a DIY DJ controller with an Arduino UNO EK R4 Minima (by Tigris Li).
Fun, easy, and customizable!
Arduino UNO EK R4 Wi-Fi enables precise, reliable drone control via custom remote for magic shows.
Arduino UNO EK R4 Minima powers a portable star-map with GPS for off-grid stargazing.
Transform spaces with the combination of Arduino UNO EK R4 Wi-Fi and Minima for dynamic and stunning effects.
The best prototyping and learning tool
Over a decade ago, the EK transformed makers into innovators. Now, the UNO EK 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 UNO EK R4 for your needs
Choose between the lightweight UNO EK R4 Minima and the full-fledged UNO EK R4 Wi-Fi depending on your skill level, general budget and the project you have in mind.
UNO EK R4 Minima
Focused on simplicity, it offers essential functions that make it ideal for prototyping and basic learning.
UNO EK R4 Wi-Fi
Perfect for IoT and wireless projects with its ESP32-S3 for Wi-Fi/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.