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Original Arduino UNO EK (एक) R4 WiFi - Made in India

SKU: S4C8CGMFLG
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The Original Arduino UNO EK (एक) R4 WiFi – Made in India is the official Indian edition of the Arduino UNO R4 WiFi, manufactured under the "Make in India" initiative. It delivers the same hardware, performance, and software compatibility as the global Arduino UNO R4 WiFi while improving local availability and support for makers, educators, students, and professionals in India....
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The Original Arduino UNO EK (एक) R4 WiFi – Made in India is the official Indian edition of the Arduino UNO R4 WiFi, manufactured under the "Make in India" initiative. It delivers the same hardware, performance, and software compatibility as the global Arduino UNO R4 WiFi while improving local availability and support for makers, educators, students, and professionals in India. The word "EK (एक)", meaning "One" in Hindi, symbolizes simplicity and innovation.

Powered by the Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller running at 48MHz, the board is paired with an ESP32-S3 wireless coprocessor that provides 2.4GHz Wi-Fi® and Bluetooth® Low Energy (BLE) connectivity. It also features a 12×8 LED matrix, 12-bit DAC, CAN Bus, operational amplifier (OP AMP), RTC, USB HID support, and a USB Type-C interface, making it one of the most feature-rich Arduino UNO boards available.

The UNO EK R4 WiFi maintains the classic Arduino UNO form factor and shield compatibility while providing significantly improved processing power, memory, connectivity, and peripheral support. Fully compatible with the Arduino IDE and Arduino IoT Cloud, it is ideal for IoT development, robotics, industrial automation, smart home systems, education, and rapid prototyping.

Key Features

  • Official Arduino UNO EK (एक) R4 WiFi – Made in India
  • Manufactured under the Make in India initiative
  • Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller
  • 48MHz CPU with floating-point unit (FPU)
  • ESP32-S3 wireless coprocessor
  • Built-in 2.4GHz Wi-Fi®
  • Built-in Bluetooth® Low Energy (BLE)
  • Integrated 12×8 programmable LED matrix
  • 12-bit DAC (Digital-to-Analog Converter)
  • CAN Bus interface
  • Built-in operational amplifier (OP AMP)
  • USB HID support (Keyboard, Mouse, MIDI)
  • USB Type-C connector
  • 24V VIN input support
  • Real-Time Clock (RTC)
  • Arduino UNO R3 shield compatible
  • 5V operating logic
  • Compatible with Arduino IDE and Arduino IoT Cloud
  • Ideal for IoT, robotics, automation, and embedded applications

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Board Type: Official Arduino UNO EK (एक) R4 WiFi Development Board
Country of Manufacture: India
Microcontroller: Renesas RA4M1 (R7FA4M1AB3CFM)
Wireless Coprocessor: ESP32-S3-MINI-1-N8
CPU Architecture: 32-bit Arm Cortex-M4F
Clock Speed: 48MHz
Operating Voltage: 5V
Input Voltage (VIN): 6V–24V DC
Recommended Input Voltage: 7V–24V DC
Flash Memory: 256KB
SRAM: 32KB
Data Flash (EEPROM Emulation): 8KB
Digital I/O Pins: 14
PWM Pins: 6
Analog Input Pins: 6
ADC Resolution: 14-bit
DAC Resolution: 12-bit
UART Interfaces: 1 (Additional via ESP32-S3)
SPI Interfaces: 1
I²C Interfaces: 1
CAN Bus: Supported
USB Interface: USB Type-C (USB HID Supported)
Wireless Connectivity: Wi-Fi 802.11 b/g/n (2.4GHz), Bluetooth® LE 5
LED Matrix: 12 × 8 Integrated Matrix (96 LEDs)
RTC: Built-in
Operational Amplifier: Integrated
GPIO Logic Level: 5V
Programming Interface: USB Type-C
Operating Temperature: -40°C to +85°C (MCU)
Board Dimensions: 68.85mm × 53.34mm
Shield Compatibility: Arduino UNO R3 Compatible
Development Environment: Arduino IDE, Arduino CLI, Arduino IoT Cloud, PlatformIO

Additional Resources

Arduino UNO EK.PDF

FAQ

1. What is the Arduino UNO EK (एक) R4 WiFi?

The Arduino UNO EK (एक) R4 WiFi is the official Made in India version of the Arduino UNO R4 WiFi. It offers the same hardware and software features as the global model while improving local availability and support for the Indian maker community.

2. What wireless connectivity does the UNO EK R4 WiFi provide?

The board features an ESP32-S3 coprocessor that provides 2.4GHz Wi-Fi and Bluetooth Low Energy (BLE), making it suitable for IoT, cloud connectivity, and wireless communication projects.

3. Is the Arduino UNO EK R4 WiFi compatible with Arduino UNO R3 shields?

Yes. The UNO EK R4 WiFi maintains the standard Arduino UNO form factor and pin layout, allowing it to work with most existing Arduino UNO R3 shields.

4. What are the advantages of the UNO EK R4 WiFi over the Arduino UNO R3?

The UNO EK R4 WiFi offers a faster 32-bit Cortex-M4 processor, built-in Wi-Fi and Bluetooth, 12×8 LED matrix, 12-bit DAC, CAN Bus, USB Type-C, more memory, and support for up to 24V input, making it significantly more powerful than the UNO R3.

5. Can the Arduino UNO EK R4 WiFi be used with Arduino IoT Cloud?

Yes. The board is fully compatible with the Arduino IDE and Arduino IoT Cloud, enabling users to build connected IoT applications, monitor sensors remotely, and control devices over the internet.