SKU: 70111402952

Arduino® UNO R4 WiFi

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Description

Arduino® UNO R4 WiFiThe Arduino UNO R4 WiFi merges the RA4M1 microprocessor from Renesas with the ESP32 S3 from Espressif, creating an all in one tool for makers with enhanced processing power and a diverse array of new peripherals. With its built in Wi Fi and Bluetooth capabilities, the UNO R4 WiFi enables makers to venture into boundless creative possibilities. Furthermore, this versatile board boasts a convenient on board 12x8 LED matrix and a Qwiic connector,

The Arduino UNO R4 WiFi merges the RA4M1 microprocessor from Renesas with the ESP32-S3 from Espressif, creating an all-in-one tool for makers with enhanced processing power and a diverse array of new peripherals. With its built-in Wi-Fi® and Bluetooth® capabilities, the UNO R4 WiFi enables makers to venture into boundless creative possibilities. Furthermore, this versatile board boasts a convenient on-board 12x8 LED matrix and a Qwiic connector, offering ample space for innovation and unleashing creativity. This dynamic combination empowers makers to transform their ideas into reality and elevate their projects to unprecedented heights.

Let's explore what the UNO R4 WiFi has to offer:

  • Hardware compatibility with UNO form factor: The UNO R4 WiFi maintains the same form factor, pinout, and 5 V operating voltage as its predecessor, the UNO R3, ensuring a seamless transition for existing shields and projects.
  • Expanded memory and faster clock: The UNO R4 WiFi boasts increased memory and a faster clock speed, enabling more precise calculations and effortless handling of complex projects.
  • Extra on-board peripherals: The UNO R4 WiFi introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP, providing expanded capabilities and design flexibility.
  • Extended 24 V tolerance: The UNO R4 WiFi supports a wider input voltage range, allowing seamless integration with motors, LED strips, and other actuators using a single power source.
  • HID support: With built-in HID support, the UNO R4 WiFi can simulate a mouse or keyboard when connected to a computer via USB, making it easy to send keystrokes and mouse movements.
  • Wi-Fi® and Bluetooth®: The UNO R4 WiFi hosts an ESP32-S3 module, enabling makers to add wireless connectivity to their projects. Combined with the Arduino IoT Cloud, makers can monitor and control their projects remotely.
  • Qwiic connector: The UNO R4 WiFi features a Qwiic I2C connector, allowing easy connection to nodes from the extensive Qwiic ecosystem. Adapter cables also enable compatibility with sensors and actuators based on other connectors.
  • Support for battery-powered RTC: The UNO R4 WiFi includes additional pins, including an "OFF" pin to turn off the board and a "VRTC" pin to keep the internal Real-Time Clock powered and running.
  • LED matrix: The UNO R4 WiFi incorporates a bright 12x8 red LED matrix, ideal for creative projects with animations or plotting sensor data, eliminating the need for additional hardware.
  • Diagnostics for runtime errors: The UNO R4 WiFi includes an error-catching mechanism that detects runtime crashes and provides detailed explanations and hints about the code line causing the crash.

Tech Specs:

Board Name Arduino® UNO R4 WiFi
SKU ABX00087
Microcontroller Renesas RA4M1 (Arm® Cortex®-M4)
USB USB-C® Programming Port
Pins Digital I/O Pins 14
Pins Analog input pins 6
DAC 1
PWM pins 6
Communication UART Yes, 1x
I2C Yes, 1x
SPI Yes, 1x
CAN Yes 1 CAN Bus
Power Circuit operating voltage 5 V (ESP32-S3 is 3.3 V)
Input voltage (VIN) 6-24 V
DC Current per I/O Pin 8 mA
Clock speed Main core 48 MHz
ESP32-S3 up to 240 MHz
Memory RA4M1 256 kB Flash, 32 kB RAM
ESP32-S3 384 kB ROM, 512 kB SRAM
Dimensions Width 68.85 mm
Length 53.34 mm

 

Datasheet

01ABX00087 Datasheet

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SKU: 70111402952

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4.4 ★★★★★
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Larry B.11
Houston, US
★★★★★ 5
Quality jewelry box for the price
Color: Beige, Size: 2-Layer, Color: Beige, Size: 2-Layer
I needed a nice jewelry box for a small space. This was perfect for my needs. It holds a nice amount of jewelry. I would recommend this jewelry box. It was also nicely packaged for a gift as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Verified Purchase
Susan L Van Eyck
Belleville, US
★★★★★ 5
Attractive, well-made functional storage
Color: Dusty Blue, Size: 2 Layers, 20 Hooks
I'm quite happy with this product. It's an orderly and attractive way to store a lot of jewelry. I've put my favorites in the visible front drawer and can easily see the rest by pulling out the back drawer. I looked at a similar storage box with see-through panels on both sides, but it didn't look quite as well made and you'd have to turn it around to see side B (i.e., no less work than pulling out the back drawer). This unit feels well put together, looks nice, and sits stably on top my dresser. I'm only using it for chain-and-pendant style necklaces (leaving the bulkier stuff in an upright acrylic spoke-style container) but have it fully loaded and have doubled up on a few pegs. None of the pegs bent while I was adding pieces.
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Reviewed in the United States on March 28, 2026
M
Verified Purchase
Michelle M
Pawtucket, US
★★★★★ 5
Fantastic Necklace Organiser
Color: White, Size: 2 Layers, 20 Hooks
This is a great necklace organiser It has helped me keep all my necklaces in order - putting gold on one tray and silver the other. Keeps them for getting all tangled up and looks super nice. Not to mention the slim design doesn’t take up much space. Love it!!
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Reviewed in the United States on May 28, 2026
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Lisko
Battle Creek, US
★★★★★ 5
Great necklace organizer!
Color: White, Size: 2 Layers, 20 Hooks
This necklace organizer is perfect for keeping necklaces separated and in view. I was tired of having them tangled in my jewelry box and this does the trick. Plus it is very well made and looks lovely in my closet. I highly recommend this for people who want to keep their necklaces organized!
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Reviewed in the United States on May 15, 2026
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Verified Purchase
Zilly115
Grantham, US
★★★★★ 5
So pretty!
Color: White, Size: 2 Layers, 20 Hooks
I got the two drawer box. Very nice quality necklace organizer. Looks beautiful with all my necklaces in it. Versatile as well as it has compartment on the bottom so that when you pull the drawer out the longer necklaces stay contained. You can also hang more than one necklace on the little hooks. I feel this will provide superb protection for my jewelry even with travel. I wish I got this sooner! It is a beautiful way to display the necklaces but I keep mine in my dresser drawer and it fits perfectly.
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Reviewed in the United States on April 11, 2026

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