Arduino UNO R4 WiFi
Arduino UNO R4 WiFi
Arduino UNO R4 WiFi
The next evolution of the world's most popular microcontroller board. The Arduino UNO R4 WiFi combines a powerful Renesas RA4M1 32-bit Arm Cortex-M4 processor with onboard ESP32-S3 Wi-Fi & Bluetooth connectivity, a built-in 12x8 LED matrix, and full backward compatibility with existing UNO shields and projects. Available now from The Tech Depot, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, and expert support.
Specifications
| Microcontroller | Renesas RA4M1 (Arm Cortex-M4, 48 MHz) |
| Connectivity Module | ESP32-S3 (Wi-Fi 802.11 b/g/n, Bluetooth 5.0 LE) |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 6-24V |
| Flash Memory | 256 KB (RA4M1) + 384 KB (ESP32-S3) |
| SRAM | 32 KB (RA4M1) + 512 KB (ESP32-S3) |
| Digital I/O Pins | 14 (6 PWM capable) |
| Analog Input Pins | 6 (14-bit ADC) |
| DAC Output | 1 (12-bit) |
| CAN Bus | 1 (via built-in transceiver) |
| OP AMP | 1 (built-in) |
| LED Matrix | 12x8 Red LED Array (onboard) |
| USB Connector | USB-C |
| Clock Speed | 48 MHz |
| Board Dimensions | 68.85 mm x 53.34 mm |
| Weight | Approx. 25 g |
| Compatibility | Arduino UNO form factor (backward compatible with UNO R3 shields) |
| Type | Official Arduino Development Board |
| Origin | 100% Original / Authentic Arduino Product |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp Technical Support 24/7 |
Why Choose the Arduino UNO R4 WiFi?
- Massive Performance Upgrade: The 32-bit Arm Cortex-M4 processor at 48 MHz delivers up to 12x more computational power than the classic UNO R3's ATmega328P, with 256 KB flash and 32 KB SRAM.
- Built-in Wi-Fi & Bluetooth: The onboard ESP32-S3 module enables IoT projects out of the box - connect to cloud platforms like Arduino Cloud, Blynk, or MQTT brokers without additional shields.
- 12x8 LED Matrix Display: Create scrolling text, animations, visualizations, and real-time data displays directly on the board - no external display needed for quick prototyping.
- 14-bit ADC Resolution: Read analog sensors with significantly greater precision than the 10-bit ADC on UNO R3, ideal for scientific instruments and precision measurement projects.
- Built-in 12-bit DAC: Generate true analog output signals for audio projects, waveform generation, and analog control systems without external DAC modules.
- CAN Bus Support: Native CAN bus transceiver built into the board for automotive, industrial automation, and robotics communication protocols.
- Onboard Op-Amp: Built-in operational amplifier for signal conditioning and amplification directly on the board.
- USB-C Connector: Modern, reversible USB-C for programming and power - more durable and universally compatible.
- Full Backward Compatibility: Same UNO form factor, 5V logic, and pin layout - your existing shields, sensors, and code work seamlessly.
- 100% Authentic Arduino: Sourced directly from authorized Arduino distributors. Genuine product with full manufacturer backing.
- Fast 1-5 days shipping: Ships from our Bengaluru warehouse to most locations across India. Same-day delivery available in Bengaluru.
- Expert Technical Support: Our engineering team provides hands-on guidance for your projects via email and WhatsApp.
Key Features Breakdown
Renesas RA4M1 Microcontroller
At the heart of the UNO R4 WiFi is the Renesas RA4M1 - a 32-bit Arm Cortex-M4 processor running at 48 MHz. With 256 KB of flash memory and 32 KB of SRAM, it handles complex algorithms, floating-point math, and real-time signal processing that the classic 8-bit ATmega328P simply couldn't manage. Whether you
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Arduino UNO R4 WiFi Online in India
Purchase the Arduino UNO R4 WiFi online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Arduino UNO R4 WiFi with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Arduino UNO R4 WiFi at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.