Arduino Uno R4 WiFi Now in Stock - Buy Locally at Communica
Shop Arduino Uno R4 WiFi boards at Communica. Faster MCU, WiFi & Bluetooth, expanded memory. SA stock, VAT invoices, branch pickup - get building today.
Enhanced Performance
UNO R4 WiFi offers more memory, a faster MCU, and built-in connectivity.
Local Stock & Support
Source genuine Arduino at Communica branches or online for peace of mind.
Easy Integration
Compatible with classic shields and modern IoT use cases for students and pros.
Meet the Arduino Uno R4 WiFi: Faster, Smarter, Connected
Arduino's new UNO R4 WiFi brings project builders into a new era of performance and connectivity without leaving behind the ease-of-use that made the original a global favourite. Featuring a powerful Renesas RA4M1 ARM Cortex M4 MCU clocked at 48MHz, 256kB flash memory, a full megabyte of RAM, plus built-in WiFi and Bluetooth, the Uno R4 WiFi is perfect for students, makers, industry and STEM educators in South Africa.
Key Features & Specs
| Feature | Uno R4 WiFi | Uno R3 |
|---|---|---|
| Microcontroller | Renesas RA4M1 (Arm Cortex-M4) | ATmega328P |
| Flash Memory | 256 kB | 32 kB |
| RAM | 32 kB + 8 kB | 2 kB |
| Connectivity | WiFi (ESP32-S3), Bluetooth LE | None onboard |
| USB Port | USB-C | USB-B |
UNO R4 WiFi's pinout remains compatible with most classic Uno (R3) shields, letting you leverage the vast accessory and hardware ecosystem already available at South African suppliers. Its Castellated pads offer advanced users easier integration onto custom PCBs and modules for streamlined deployment in industry or education labs.
UNO R4 WiFi boards are now arriving at Communica. Check live stock at Samrand HQ, Pretoria CBD, and Cape Town or order for courier delivery. VAT-compliant tax invoices and account quotes are available for schools, universities, and business purchases.
What's New: Upgrades for IoT and Embedded Projects
- WiFi (802.11b/g/n) and Bluetooth support for seamless IoT/cloud integration
- On-board RTC (real-time clock) - essential for data-logging and timed automation
- 12-bit analog inputs for higher resolution sensor reading
- CAN bus for automotive/industrial applications
- Qwiic connector for plug-and-play sensor, display & module expansion
Students, hobbyists, and engineers can now build connected weather stations, remote data loggers, wireless gadgets, and automation solutions-right out of the box. As a registered South African importer, Communica offers technical guidance and practical selection tips for both plug-and-play and demanding custom projects.
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Why Buy Arduino Uno R4 WiFi at Communica?
- Consistent local stock: Avoid long international lead times and secure ZAR-denominated invoices for easier procurement.
- Shop online or in-branch: Conveniently browse or reserve for collection at Samrand, Pretoria, or Cape Town branches.
- Education & bulk: Tertiary institutions and STEM programs can request bulk quotes and documentation for tender processes.
- Wide accessory ecosystem: Complement your R4 WiFi with shields, sensors, passives, enclosures, cables, and power supplies.
Getting Started: Compatibility & Setup Notes
Arduino IDE (version 2.0 or later) fully supports the Uno R4 family, with board manager downloads enabling seamless programming. Many classic libraries and sketches run with minimal changes; however, advanced peripherals (CAN, WiFi, Qwiic) unlock new challenges and learning opportunities for South African students and makers.
Need a quick start? Communica stocks official and third-party shields, matching USB-C cables, power adapters, prototyping kits, and tools-browse the extensive Maker and IoT categories to round out your build.
Sample Projects Enabled by UNO R4 WiFi
- Wireless sensor networks for environmental monitoring in agriculture or urban planning
- Bluetooth-activated home automation for apartments and student residences
- Secure data logging with accurate real-time clock and SD expansion
- Fast prototyping of connected robotics and STEM education kits
Arduino Uno R4 WiFi boards are ideal for South African higher education courses that require IoT and embedded system exposure without complex setup or overseas delays. Engineers developing local PoC hardware or needing VAT-compliant procurement will also benefit from Communica's national reach and expert in-branch support.
Sources
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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