Introducing the Original Arduino UNO एक EK R4 Minima – Made in India, Made for Innovation

The Arduino UNO has long been the backbone of makers, educators, and engineers worldwide. Now, the legacy continues — and levels up — with the launch of the Original Arduino UNO एक EK R4 Minima, a powerful new board that's Made in India and engineered to drive the next generation of embedded systems and electronics innovation.

Let’s dive into what makes this board a game-changer, why it’s called एक EK, and how it can be the brain behind your next big project.

Why “एक EK”?

"एक EK" symbolizes one unified platform with endless possibilities. The UNO R4 Minima carries the soul of the original UNO but fuses it with next-gen capabilities — making it एक EK board to rule them all when it comes to performance, compatibility, and simplicity.

What Is the Arduino UNO R4 Minima?

The UNO एक EK R4 Minima is part of Arduino's 4th generation UNO lineup. It replaces the older 8-bit microcontroller with a 32-bit powerhouse while keeping the iconic form factor of the classic UNO. It’s designed for creators who need advanced features, without WiFi/Bluetooth, focusing purely on raw processing power, real-time control, and peripheral support.

Technical Specifications

FeatureSpecification
MicrocontrollerRenesas RA4M1 (ARM Cortex-M4 @ 48 MHz)
Architecture32-bit ARM
Flash Memory256 KB
SRAM32 KB
Operating Voltage5V (just like the classic UNO)
Input Voltage (recommended)6-24V
Digital I/O Pins14
PWM Pins6
Analog Input Pins6
DAC (Digital-to-Analog)1x 12-bit
USB InterfaceUSB-C (finally!)
Onboard FeaturesRTC (Real Time Clock), OP AMP
Form FactorStandard UNO layout – 100% shield compatible

Key Benefits of UNO एक EK R4 Minima

High Performance

Powered by a 32-bit Cortex-M4 running at 48MHz, it’s 15x faster than the classic UNO — ideal for real-time applications, robotics, and industrial automation.

Increased Memory

With 256KB flash and 32KB RAM, you can now build larger and more complex programs without running out of space.

USB-C Connectivity

Say goodbye to old USB-B cables. USB-C is modern, reversible, and fast — perfect for today's standards.

5V Compatibility

Despite the advanced processor, the board still supports 5V logic — so all your existing sensors and shields will work without a hitch.

Advanced Onboard Peripherals


DAC: Output true analog voltages — great for audio, waveform generation, or control systems.

OP AMP: Amplify signals directly on-board.

RTC: Build time-based systems (like clocks, alarms, data loggers) with ease.

Real-World Use Cases

 Industrial Automation:

Build a real-time control system for conveyor belts, packaging machines, or smart meters.

Audio Projects:

Use the DAC and OP AMP for sound synthesis, custom effects pedals, or signal filtering applications.

 Educational Tools:

Create teaching kits for embedded systems, real-time programming, or advanced microcontroller courses.

Lab Equipment:

Design custom data acquisition modules for scientific instruments or environmental monitoring.

Proudly Made in India

For the first time, Arduino has brought its production closer to Indian innovators. The UNO R4 Minima Made in India edition brings:

Lower cost for Indian users

Faster local availability

Support for the Indian maker ecosystem


This is more than a board — it’s a movement to empower Indian creators with world-class hardware, made at home.

Where to Buy the Original Arduino UNO एक EK R4 Minima?

Buy now and be part of the innovation wave: Visit product page


Stocks both UNO R4 Minima & WiFi (Made in India)

Fast shipping across India