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

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₹1,399.00 (Inclusive of 18% GST)
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Original Arduino UNO EK (एक) R4 WiFi - Made in India

The Original Arduino Uno EK R4 Wi-Fi, proudly manufactured in India, enhances the UNO series with its robust 32-bit architecture. It operates on the Renesas R7FA4M1AB3CFM microcontroller, featuring a 48 MHz Arm Cortex-M4 processor, along with 256 kB Flash memory and 32 kB SRAM.

Equipped with integrated WiFi and Bluetooth through the ESP32-S3 module, it streamlines IoT project development. A versatile 12×8 LED matrix provides an innovative platform for animations and games. Suitable for both novices and experienced users, the UNO R4 WiFi accommodates 6-24 V input and supports USB-C power. Benefit from comprehensive documentation and full compatibility with existing Arduino shields.

Looking for the Original Arduino Uno EK R4 WiFi Made in India?

For those in search of the Original Arduino Uno EK R4 WiFi made in India, ROBODIUM offers authentic products backed by proper packaging, manufacturer warranty, and technical support. Our boards undergo rigorous quality checks, ensuring dependable performance for IoT, embedded systems, and prototyping projects. By purchasing from ROBODIUM, you can be assured of authenticity, after-sales support, and consistent quality that surpasses many competitors.

Features

  1. Main MCU
    Renesas RA4M1 (R7FA4M1AB3CFM#AA0) – Manages all pin headers and communication buses

  2. Processor & Performance
    48 MHz Arm Cortex-M4 with Floating Point Unit (FPU)
    5V operating voltage
    Real-Time Clock (RTC)
    Memory Protection Unit (MPU)
    Digital-to-Analog Converter (DAC)

  3. Memory
    256 kB Flash Memory
    32 kB SRAM
    8 kB EEPROM (Data Memory)

  4. Peripherals
    Capacitive Touch Sensing Unit (CTSU)
    USB 2.0 Full-Speed (USBFS)
    14-bit ADC
    Up to 12-bit DAC
    Operational Amplifier (OPAMP)

  5. Power
    5V operating voltage for RA4M1
    Recommended input voltage: 6-24V
    VIN pin & barrel jack (6-24V input)
    USB-C power supply (5V)

  6. Communication
    1x UART (D0, D1)
    1x SPI (D10-D13, ICSP header)
    1x I2C (A4, A5, SDA, SCL)
    1x CAN (D4, D5, requires external transceiver)

  7. Wireless Connectivity
    Wi-Fi 4 (802.11 b/g/n) – Up to 150 Mbps, 2.4 GHz band
    Bluetooth 5

Comparison Table

Feature


Original Arduino Uno EK R4 WiFi (Made in India)


Arduino Uno R4 WiFi (Standard)

Microcontroller (MCU)

Renesas R7FA4M1A (Cortex-M4, 48 MHz)

Renesas RA4M1 (Cortex-M4, 48 MHz)

Wi-Fi / Bluetooth

ESP32-S3 module

ESP32-S3 module (up to 240 MHz)

Flash / SRAM / EEPROM

256 kB / 32 kB SRAM / 8 kB EEPROM

256 kB / 32 kB SRAM / 8 kB EEPROM

On-board LED matrix

12 × 8 programmable red LED display

12 × 8 programmable red LED display

Qwiic connector

Yes (for I²C, 3.3 V)

Yes (compatible)

Peripherals

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

The Original Arduino Uno EK R4 Wi-Fi, proudly manufactured in India, enhances the UNO series with its robust 32-bit architecture. It operates on the Renesas R7FA4M1AB3CFM microcontroller, featuring a 48 MHz Arm Cortex-M4 processor, along with 256 kB Flash memory and 32 kB SRAM.

Equipped with integrated WiFi and Bluetooth through the ESP32-S3 module, it streamlines IoT project development. A versatile 12×8 LED matrix provides an innovative platform for animations and games. Suitable for both novices and experienced users, the UNO R4 WiFi accommodates 6-24 V input and supports USB-C power. Benefit from comprehensive documentation and full compatibility with existing Arduino shields.

Looking for the Original Arduino Uno EK R4 WiFi Made in India?

For those in search of the Original Arduino Uno EK R4 WiFi made in India, ROBODIUM offers authentic products backed by proper packaging, manufacturer warranty, and technical support. Our boards undergo rigorous quality checks, ensuring dependable performance for IoT, embedded systems, and prototyping projects. By purchasing from ROBODIUM, you can be assured of authenticity, after-sales support, and consistent quality that surpasses many competitors.

Features

  1. Main MCU
    Renesas RA4M1 (R7FA4M1AB3CFM#AA0) – Manages all pin headers and communication buses

  2. Processor & Performance
    48 MHz Arm Cortex-M4 with Floating Point Unit (FPU)
    5V operating voltage
    Real-Time Clock (RTC)
    Memory Protection Unit (MPU)
    Digital-to-Analog Converter (DAC)

  3. Memory
    256 kB Flash Memory
    32 kB SRAM
    8 kB EEPROM (Data Memory)

  4. Peripherals
    Capacitive Touch Sensing Unit (CTSU)
    USB 2.0 Full-Speed (USBFS)
    14-bit ADC
    Up to 12-bit DAC
    Operational Amplifier (OPAMP)

  5. Power
    5V operating voltage for RA4M1
    Recommended input voltage: 6-24V
    VIN pin & barrel jack (6-24V input)
    USB-C power supply (5V)

  6. Communication
    1x UART (D0, D1)
    1x SPI (D10-D13, ICSP header)
    1x I2C (A4, A5, SDA, SCL)
    1x CAN (D4, D5, requires external transceiver)

  7. Wireless Connectivity
    Wi-Fi 4 (802.11 b/g/n) – Up to 150 Mbps, 2.4 GHz band
    Bluetooth 5

Comparison Table

Feature


Original Arduino Uno EK R4 WiFi (Made in India)


Arduino Uno R4 WiFi (Standard)

Microcontroller (MCU)

Renesas R7FA4M1A (Cortex-M4, 48 MHz)

Renesas RA4M1 (Cortex-M4, 48 MHz)

Wi-Fi / Bluetooth

ESP32-S3 module

ESP32-S3 module (up to 240 MHz)

Flash / SRAM / EEPROM

256 kB / 32 kB SRAM / 8 kB EEPROM

256 kB / 32 kB SRAM / 8 kB EEPROM

On-board LED matrix

12 × 8 programmable red LED display

12 × 8 programmable red LED display

Qwiic connector

Yes (for I²C, 3.3 V)

Yes (compatible)

Peripherals

Return Policy Overview

At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.

Return Window

  • Standard Returns: 7 days from delivery date for any reason, including if you simply changed your mind.
  • Defective/Damaged Items: 7 days from delivery date for items received damaged or defective.
  • Manufacturing Defects (Warranty): 15 days from delivery for manufacturing defects, unless a different warranty period is specified on the product page.

What Can Be Returned

Most items sold on ROBODIUM™ can be returned within the return window, including:

  • Items you no longer need or changed your mind about
  • Products received in damaged condition
  • Items with manufacturing defects
  • Wrong items received (item mismatch)
  • Missing components inside the package

Return Conditions

To be eligible for a return, items must be:

  • In their original, unused condition
  • In the original packaging with all accessories, manuals, and free gifts (if any)
  • Accompanied by proof of purchase

Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.

How to Initiate a Return

  1. Contact us via email at support@robodium.com or call +91 8123109966
  2. Provide your order number and reason for return
  3. Submit photos/videos of the item (especially for damaged/defective products)
  4. Our team will review and approve your return request within 1-2 business days

Return Pickup Process

We arrange the return pickup for you - hassle-free returns similar to major e-commerce platforms.

  • Once your return is approved, we will coordinate pickup from your location.
  • Pack the product securely in its original packaging.
  • Include a copy of the order confirmation or packing list.
  • Keep the package ready - our logistics partner will collect it at the scheduled time.

Return Shipping Costs

  • Defective, damaged, or wrong items: ROBODIUM™ covers all return shipping costs. No charges to you.
  • Change of mind returns: A flat return shipping fee of ₹100 will be deducted from your refund amount.

Refund Process

  • Refund Method: Refunds are processed to your original payment method.
  • Processing Time: 5-7 business days after we receive and inspect the returned item.
  • Refund Amount: Full purchase price minus any applicable return shipping fees.
  • Orders canceled before shipping receive a full refund (minus up to 5% payment gateway charges, if applicable).

Replacements

  • Once the returned item is inspected and approved, we ship the replacement at no additional cost.
  • Replacement items are dispatched within 2 business days of receiving your return.
  • If replacement is unavailable, we provide a full refund.

Warranty Terms

All products include a minimum 15-day warranty against manufacturing defects unless otherwise specified on the product page.

Warranty does not cover: misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.

Order Cancellations

  • Orders in Pending or Payment Verification status can be canceled for a full refund.
  • Contact us immediately at support@robodium.com to cancel before shipping.
  • Once an order is shipped, it cannot be canceled but can be returned after delivery.

Customer Service Commitment

  • Email Response Time: Within 24 hours on business days
  • Phone Support: Monday-Saturday, 10:00 AM - 6:00 PM IST
  • Return Request Review: 1-2 business days
  • Issue Resolution: Within 48 hours of verification

Need Help?

For any return, refund, or warranty questions, contact us:

📞 +91 8123109966 (Mon-Sat, 10 AM - 6 PM IST)
✉️ support@robodium.com

Last updated: January 2026

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