Introducing the latest addition to the Arduino lineup, the Arduino UNO R4 WiFi board. This new version of the UNO board brings significant advancements, making it a powerful tool for your projects. The standout feature of the UNO R4 WiFi is the integration of an ESP32-S3 Wi-Fi module (ESP32-S3-MINI-1-N8) which equip the UNO with Inbuilt Bluetooth and WiFi.
The UNO R4 WiFi is part of the first UNO series of 32-bit development boards, being previously based on 8-bit AVR microcontrollers. There are thousands of guides, tutorials, and books written about the UNO board, where the UNO R4
WiFi continues its legacy.
Pin Configuration:

Powered by a 48 MHz Arm® Cortex®-M4 microprocessor, the board utilizes a RA4M1 series microcontroller from Renesas (R7FA4M1AB3CFM#AA0). With enhanced memory capabilities, the UNO R4 WiFi boasts 256 kB flash, 32 kB SRAM, and 8 kB of EEPROM. Additionally, a logic level translator (TXB0108DQSR) facilitates seamless communication between the RA4M1 and ESP32-S3 modules, ensuring optimal performance. Upgrade to the Arduino UNO R4 WiFi and experience the next level of Arduino innovation.
Specification:
| Model | Arduino UNO R4 WiFi |
|---|---|
| Overview | 48 MHz Arm Cortex-M4 microprocessor with a floating point unit (FPU) 5 V 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 Data Memory (EEPROM) |
| Peripherals | Capacitive Touch Sensing Unit (CTSU) USB 2.0 Full-Speed Module (USBFS) 14-bit ADC Up to 12-bit DAC Operational Amplifier (OPAMP) |
| Power | Operating voltage for RA4M1 is 5 V Recommended input voltage (VIN) is 6-24 V Barrel jack connected to VIN pin (6-24 V) Power via USB-C at 5 V |
| Communication | 1x UART (pin D0, D1) 1x SPI (pin D10-D13, ICSP header) 1x I2C (pin A4, A5, SDA, SCL) 1x CAN (pin D4, D5, external transceiver is required) |
| Wi-Fi | Wi-Fi support with 802.11 b/g/n standard (Wi-Fi® 4) Bit rate at up to 150 Mbps 2.4 GHz band |
| Bluetooth | Bluetooth 5 |
| GTIN | 7630049204591 |
| Shipping Weight | 0.03 kg |
| Shipping Dimensions | 10 × 8 × 4 cm |
Features:
- The UNO R4 is now a 32-bit Microcontroller board, being previously based on 8-bit AVR
- The board features 14 digital I/O ports, 6 analog channels
- Dedicated pins for I2C, SPI and UART connections.
- It has a significantly larger memory:
- 8 times more flash memory (256 kB)
- 16 times more SRAM (32 kB).
- Fastest 48 MHz clock Speed. It is 3x faster than its predecessors.
- Onboard ESP32-S3 module for Wi-Fi & Bluetooth connectivity,
- Onboard 12×8 LED matrix
- Making one of the most visually unique Arduino boards to date.
- The LED matrix is fully programmable, where you can load anything from still frames to custom animations.
Package Includes:
1 x Arduino UNO R4 WiFi ABX00087
QX 95 Quad-Copter Combo kit with Radiolink flight controller
37 in 1 Sensors Kit compatible with Arduino
Mark4 5 inch 225mm carbon fiber frame kit
Emax Bullet Series 35A ESC (BLHELI_S) with Oneshot (Original)
APEX DC HD 5” FPV Frame Kit
IX2 90mm Micro FPV Racing kit
Arduino Nano Board R3 with CH340 chip (Unsoldered)
Arduino Uno R3 with Cable
QX95 Quad-copter Combo Kit
SmartElex GSM/GPRS Shield for Arduino
Waveshare Adapter Board for Arduino and Raspberry Pi
ARF Quadcopter Advanced Combo Kit
Slamtec RPLiDAR A2M12 360 Degree Laser Scanner Kit – 12M Range
RepRap MK2B 3D printers Dual Power PCB Heat Bed With 18AWG Cable
Raspberry Pi Camera Module 3
Creality Ender-3 V2 Neo 3D Printer
Original Arduino Nano 33 BLE Sense Rev2 ABX00069
FS-IA6 6CH AFHDS 2A 2.4G Radio Receiver
Official Raspberry Pi Camera NOIR V2
Raspberry Pi 4 Model-B with 4 GB RAM
Original Arduino Uno Rev3 SMD A000073 




There are no reviews yet.