Arduino Uno R4 WiFi

Description

The Arduino Uno R4 is powered by the Renesas RA4M1 32-bit ARM Cortex-M4 processor, providing a significant boost in processing power, memory, and functionality. The WiFi version comes with an ESP32-S3 WiFi module in addition to the RA4M1, expanding creative opportunities for makers and engineers. The Uno R4 Minima is an affordable option for those who don't need the additional features.

The Arduino Uno R4 runs at 48 MHz, which provides a 3x increase over the popular Uno R3. Additionally, SRAM has been upgraded from 2 kB to 32 kB, and flash memory from 32 kB to 256 kB to support more complex projects. Responding to community feedback, the USB port is now USB-C, and the maximum power supply voltage has been raised to 24 V with an enhanced thermal design. The board includes a CAN bus and an SPI port, enabling users to reduce wiring and perform parallel tasks by connecting multiple shields. A 12-bit analog DAC is also provided on the board.

The Arduino Uno R4 comes in 2 versions (Minima and WiFi) and offers the following new features compared to the Uno R3:

Arduino Uno R4 Minima Arduino Uno R4 WiFi
USB-C connector USB-C connector
RA4M1 from Renesas (Cortex-M4) RA4M1 from Renesas (Cortex-M4)
HID device (emulate a mouse or a keyboard) HID device (emulate a mouse or a keyboard)
Improved power section (up to 24 V through VIN) Improved power section (up to 24 V through VIN)
CAN bus CAN bus
DAC (12 bits) DAC (12 bits)
Op amp Op amp
WiFi/Bluetooth LE
Fully-addressable LED matrix (12x8)
Qwiic I²C connector
RTC (with support for a buffer battery)
Runtime errors diagnostics

Model Comparison

Uno R3 Uno R4 Minima Uno R4 WiFi
Microcontroller Microchip ATmega328P (8-bit AVR RISC) Renesas RA4M1 (32-bit ARM Cortex-M4) Renesas RA4M1 (32-bit ARM Cortex-M4)
Operating Voltage 5 V 5 V 5 V
Input Voltage 6-20 V 6-24 V 6-24 V
Digital I/O Pins 14 14 14
PWM Digital I/O Pins 6 6 6
Analog Input Pins 6 6 6
DC Current per I/O Pin 20 mA 8 mA 8 mA
Clock Speed 16 MHz 48 Mhz 48 Mhz
Flash Memory 32 KB 256 KB 256 KB
SRAM 2 KB 32 KB 32 KB
USB USB-B USB-C USB-C
DAC (12 bit) 1 1
SPI 1 2 2
I²C 1 2 2
CAN 1 1
Op amp 1 1
SWD 1 1
RTC 1
Qwiic I²C connector 1
LED Matrix 12x8 (96 red LEDs)
LED_BUILTIN 13 13 13
Dimensions 68.6 x 53.4 mm 68.9 x 53.4 mm 68.9 x 53.4 mm

Downloads

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The Arduino Uno R4 is powered by the Renesas RA4M1 32-bit ARM Cortex-M4 processor, providing a significant boost in processing... Read more

€ 29,95 incl. VAT
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      Details

      SKU: 20528
      EAN: 7630049204591

      Description

      The Arduino Uno R4 is powered by the Renesas RA4M1 32-bit ARM Cortex-M4 processor, providing a significant boost in processing power, memory, and functionality. The WiFi version comes with an ESP32-S3 WiFi module in addition to the RA4M1, expanding creative opportunities for makers and engineers. The Uno R4 Minima is an affordable option for those who don't need the additional features.

      The Arduino Uno R4 runs at 48 MHz, which provides a 3x increase over the popular Uno R3. Additionally, SRAM has been upgraded from 2 kB to 32 kB, and flash memory from 32 kB to 256 kB to support more complex projects. Responding to community feedback, the USB port is now USB-C, and the maximum power supply voltage has been raised to 24 V with an enhanced thermal design. The board includes a CAN bus and an SPI port, enabling users to reduce wiring and perform parallel tasks by connecting multiple shields. A 12-bit analog DAC is also provided on the board.

      The Arduino Uno R4 comes in 2 versions (Minima and WiFi) and offers the following new features compared to the Uno R3:

      Arduino Uno R4 Minima Arduino Uno R4 WiFi
      USB-C connector USB-C connector
      RA4M1 from Renesas (Cortex-M4) RA4M1 from Renesas (Cortex-M4)
      HID device (emulate a mouse or a keyboard) HID device (emulate a mouse or a keyboard)
      Improved power section (up to 24 V through VIN) Improved power section (up to 24 V through VIN)
      CAN bus CAN bus
      DAC (12 bits) DAC (12 bits)
      Op amp Op amp
      WiFi/Bluetooth LE
      Fully-addressable LED matrix (12x8)
      Qwiic I²C connector
      RTC (with support for a buffer battery)
      Runtime errors diagnostics

      Model Comparison

      Uno R3 Uno R4 Minima Uno R4 WiFi
      Microcontroller Microchip ATmega328P (8-bit AVR RISC) Renesas RA4M1 (32-bit ARM Cortex-M4) Renesas RA4M1 (32-bit ARM Cortex-M4)
      Operating Voltage 5 V 5 V 5 V
      Input Voltage 6-20 V 6-24 V 6-24 V
      Digital I/O Pins 14 14 14
      PWM Digital I/O Pins 6 6 6
      Analog Input Pins 6 6 6
      DC Current per I/O Pin 20 mA 8 mA 8 mA
      Clock Speed 16 MHz 48 Mhz 48 Mhz
      Flash Memory 32 KB 256 KB 256 KB
      SRAM 2 KB 32 KB 32 KB
      USB USB-B USB-C USB-C
      DAC (12 bit) 1 1
      SPI 1 2 2
      I²C 1 2 2
      CAN 1 1
      Op amp 1 1
      SWD 1 1
      RTC 1
      Qwiic I²C connector 1
      LED Matrix 12x8 (96 red LEDs)
      LED_BUILTIN 13 13 13
      Dimensions 68.6 x 53.4 mm 68.9 x 53.4 mm 68.9 x 53.4 mm

      Downloads

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