Original Arduino UNO EK (एक) R4 WiFi - Made in India
- Product SKU: R1275
- Category: Arduino, Arduino Ecosystem, Brands, Development Boards, Development Boards & Accessories, ESP32 & NodeMCU Ecosystem, Intermediate Projects, IoT Projects, Quick Deliverables, Wireless & IOT, Wireless Module, ₹500 to ₹1500
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
Main MCU
Renesas RA4M1 (R7FA4M1AB3CFM#AA0) – Manages all pin headers and communication busesProcessor & 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)Memory
256 kB Flash Memory
32 kB SRAM
8 kB EEPROM (Data Memory)Peripherals
Capacitive Touch Sensing Unit (CTSU)
USB 2.0 Full-Speed (USBFS)
14-bit ADC
Up to 12-bit DAC
Operational Amplifier (OPAMP)Power
5V operating voltage for RA4M1
Recommended input voltage: 6-24V
VIN pin & barrel jack (6-24V input)
USB-C power supply (5V)Communication
1x UART (D0, D1)
1x SPI (D10-D13, ICSP header)
1x I2C (A4, A5, SDA, SCL)
1x CAN (D4, D5, requires external transceiver)Wireless Connectivity
Wi-Fi 4 (802.11 b/g/n) – Up to 150 Mbps, 2.4 GHz band
Bluetooth 5
Comparison Table
Feature |
|
|
|---|---|---|
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
Main MCU
Renesas RA4M1 (R7FA4M1AB3CFM#AA0) – Manages all pin headers and communication busesProcessor & 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)Memory
256 kB Flash Memory
32 kB SRAM
8 kB EEPROM (Data Memory)Peripherals
Capacitive Touch Sensing Unit (CTSU)
USB 2.0 Full-Speed (USBFS)
14-bit ADC
Up to 12-bit DAC
Operational Amplifier (OPAMP)Power
5V operating voltage for RA4M1
Recommended input voltage: 6-24V
VIN pin & barrel jack (6-24V input)
USB-C power supply (5V)Communication
1x UART (D0, D1)
1x SPI (D10-D13, ICSP header)
1x I2C (A4, A5, SDA, SCL)
1x CAN (D4, D5, requires external transceiver)Wireless Connectivity
Wi-Fi 4 (802.11 b/g/n) – Up to 150 Mbps, 2.4 GHz band
Bluetooth 5
Comparison Table
Feature |
|
|
|---|---|---|
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
- Contact us via email at support@robodium.com or call +91 8123109966
- Provide your order number and reason for return
- Submit photos/videos of the item (especially for damaged/defective products)
- 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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