{"product_id":"arduino-uno-r4-wifi","title":"Arduino UNO R4 WiFi Development Board – RA4M1, ESP32-S3, LED Matrix","description":"\u003cp\u003eThe Arduino UNO R4 WiFi development board combines a 32-bit Renesas RA4M1 microcontroller with an ESP32-S3 module for Wi-Fi and Bluetooth connectivity. It keeps the familiar UNO layout and adds a built-in 12×8 LED matrix and Qwiic connector for connected electronics, classroom projects, sensors, and automation.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain microcontroller:\u003c\/strong\u003e Renesas RA4M1, Arm Cortex-M4 architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless coprocessor:\u003c\/strong\u003e ESP32-S3 for Wi-Fi and Bluetooth connectivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic level:\u003c\/strong\u003e 5 V on the UNO R4 GPIO; check any connected 3.3 V device before wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Onboard 12×8 red LED matrix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion:\u003c\/strong\u003e UNO-compatible shield layout and Qwiic I2C connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e USB-C connection with the Arduino IDE and supported UNO R4 WiFi board package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther onboard capabilities:\u003c\/strong\u003e 12-bit DAC, CAN support, and real-time clock, subject to software and pin use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e One UNO R4 WiFi board; USB cable, shields, sensors, and power adapter are not included unless shown as a selected bundle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility and Setup\u003c\/h2\u003e\u003cp\u003eSelect the Arduino UNO R4 WiFi board in the current Arduino IDE, install the supported board package, and use a data-capable USB-C cable. Most shields designed for the UNO form factor can physically fit, but confirm pin use, voltage, current needs, and library support. Some older UNO R3 libraries rely on AVR-specific code and need an UNO R4-compatible version. Confirm the markings and manufacturing details of the supplied board if a particular production origin or certification is required.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhich chips are on the UNO R4 WiFi?\u003c\/h3\u003e\u003cp\u003eThe main application controller is the Renesas RA4M1; the ESP32-S3 handles wireless connectivity.\u003c\/p\u003e\n\u003ch3\u003eDoes it support Wi-Fi and Bluetooth?\u003c\/h3\u003e\u003cp\u003eYes. The onboard ESP32-S3 provides wireless connectivity through supported software.\u003c\/p\u003e\n\u003ch3\u003eWhat is the LED matrix size?\u003c\/h3\u003e\u003cp\u003eIt has a built-in 12×8 red LED matrix for simple graphics and status displays.\u003c\/p\u003e\n\u003ch3\u003eCan I use UNO R3 shields?\u003c\/h3\u003e\u003cp\u003eMany fit the UNO header layout, but confirm voltage, pin assignments, and the shield's library compatibility first.\u003c\/p\u003e\n\u003ch3\u003eWill every UNO R3 sketch run unchanged?\u003c\/h3\u003e\u003cp\u003eNo. Sketches using AVR-specific registers or libraries may require changes for the RA4M1 architecture.\u003c\/p\u003e\n\u003ch3\u003eHow do I program the board?\u003c\/h3\u003e\u003cp\u003eConnect a data-capable USB-C cable, install the current Arduino IDE and UNO R4 board support, then select UNO R4 WiFi.\u003c\/p\u003e\n\u003ch3\u003eDoes it include a USB cable?\u003c\/h3\u003e\u003cp\u003eThis listing is for the board. A cable or other accessories are included only if expressly shown in a selected bundle.\u003c\/p\u003e","brand":"Embeded Studio","offers":[{"title":"Default Title","offer_id":62503901823346,"sku":"ES-UNO-R4-WIFI","price":3500.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/ARDUINOUNOR4WIFI.webp?v=1791919733","url":"https:\/\/embededstudio.com\/products\/arduino-uno-r4-wifi","provider":"Embeded Studio","version":"1.0","type":"link"}