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Discover the latest revision of Arduino Uno - the most popular development kit in the world. The Arduino Uno in its newest iteration impresses with a three-fold increase in clock speed, eight-fold larger flash capacity, and a sixteen-fold increase in SRAM capacity. But that's just the beginning, as Arduino Uno also offers a wide range of additional peripherals, powered by a 32-bit Renessas RA4M1 microcontroller with an ARM M4 core. With the new Arduino Uno, you don't have to worry about compatibility, as the board is compatible with all shields from previous revisions. Thanks to the elaborate security systems and compatibility with existing guides and projects, Arduino Uno becomes the ideal solution for both beginners and advanced electronics enthusiasts. Arduino ABX00080
With its new revision, Arduino Uno is entering the world of 32-bit microcontrollers. The Renesas RA4M1, which is the heart of this kit, is equipped with an ARM Cortex M4 core with a clock speed of 48 MHz, 256 kB of flash memory, 32 kB of SRAM memory, and 8 kB of EEPROM memory. It operates at a voltage of 5 V, making the R4 hardware compatible with UNO Shields available on the market. Like the R3, the refreshed UNO has 14 digital ports, of which 6 support PWM, 6 analog ports (ADC) with resolution increased to 14-bits, and support for SPI, I2C, and UART interfaces. A novelty is the 12-bit digital-analog converter (DAC) and support for the CAN interface. The power supply voltage range has been extended to 6 - 24 V, and the rarely encountered USB type A connector these days has been replaced with a modern and convenient USB type C.

Compatibility with existing projects - Arduino UNO enjoys strong community support, which means there are many tutorials, guides, and projects available to use. This community is also very helpful in problem-solving and advice giving. The new version of UNO is compatible with existing projects.
Increased clock speed and expanded memory - allow for more precise and complex calculations, making it easy to create much more advanced projects
14-bit Analog-Digital Converters (ADC) increase the measurement accuracy of analog ports 16 times compared to Rev3
12-bit Digital-Analog Converter (DAC) allows for precise generation of voltages in the range of 0 - 5 V without the need for external components. The converter's output is led to port A0. It can be used to control analog circuits or, combined with an amplifier, to generate sound.
CAN-BUS The RA4M1 microcontroller has built-in support for the CAN interface, which allows data to be transmitted over long distances at high speed and reliability. It is suitable for applications that require a critical reaction time. To use this interface, only an external transceiver is needed, eliminating the need for expensive converters.
The MINIMA version is equipped with an SWD port that allows connecting an external debugger like J-link EDU mini or J-link Base and debugging code directly from Arduino IDE 2.0. This allows for quick analysis with the possibility of stopping the code and viewing variable values in real time.
Durable and practical USB type C connector. It allows easy and convenient cable connection, does not require holding unusual cables just for programming Arduino.


HID support allows for the creation of custom keyboard, mouse, game controller, and control panel projects communicating with the computer via the USB interface. This feature gained huge popularity with Arduino Leonardo, and is now also available in UNO R4.
Arduino UNO Rev4 is 100% compatible with all shield expansion modules for UNO produced by Arduino. Due to the compatibility of logic voltages and pinout, modules from other manufacturers are also compatible with the new version, but before buying unofficial extensions, it is worth making sure that the libraries have been tested with the new revision of the board.
| UNO Rev3 | UNO Rev4 MINIMA | UNO Rev4 WiFi | |
|---|---|---|---|
| Mikrokontroler | Atmega 328 | RA4M1 | RA4M1 + ESP32-S3-MINI |
| Clock speed | 16 MHz | 48 MHz | 48 MHz |
| Flash memory | 32 kB | 256 kB | 256 kB |
| SRAM memory | 2 kB | 32 kB | 32 kB |
| EEPROM memory | 1 kB | 8 kB | 8 kB |
| Logic level | 5 V | 5 V | 5 V |
| Digital ports | 14 | 14 | 14 |
| PWM | 6 | 6 | 6 |
| Analog ports (ADC) | 6 (10bit) | 6 (14bit) | 6 (14bit) |
| SPI/I2C/CAN | 1/1/0 | 1/1/1 | 1/1/1 |
|
Wireless connectivity |
No | No | WiFi / Bluetooth LE |
| HID | No |
Yes |
Yes |
| SWD | No | Yes | No |
| LED matrix | No | No | 12 x 8 czerwona |
| Qwiic | No | No | Yes |
| USB | USB type A | USB type C | USB type C |
|
Supply voltage |
6 - 12 V | 6 - 24 V | 6 - 24 V |
Data sheet
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Arduino development board equipped with Renesas Arm Cortex-M33 microcontroller, providing 512 KB SRAM, 2 MB Flash and additional 16 MB QSPI Flash, ideal for cost-effective real-time applications. With advanced security features, support for various interfaces such as Wi-Fi, Bluetooth LE, CAN, and OTA update capability, it is a great solution for companies implementing IoT and AI projects. Arduino ABX00074
Development board with ATmega32u4 microcontroller (AVR), 20 I / O lines, 7 PWM channels, 16 MHz quartz, micro-USB. Easy-to-use USB support libraries, sensors, displays, etc. are available. A000057
NINA B306 BLE module board based on the nRF52840 microcontroller with CortexM4F core (64 MHz, 1 MB Flash, 256 kB RAM). Equipped with sensors - 9-axis IMU, temperature, pressure, humidity, light, colour, gesture and microphone. Arduino ABX00070
No product available!
The Arduino Nano R4 (ABX00142) is equipped with a Renesas RA4M1 microcontroller with an Arm Cortex-M4 core and a Qwiic connector, providing extensive expansion options and full compatibility with popular Nano accessories. Designed for educational projects, prototyping IoT solutions, automation, measurement devices, and edge computing applications, the board enables easy integration of modern peripherals and rapid project implementation in the target environment. Arduino ABX00142
No product available!
Module with 2MP camera and STM32H747AI Dual ARM® Cortex® M7/M4 microcontroller. Dedicated to IoT applications using Arduino IoT Cloud. Arduino ABX00051
Arduino Opta is an advanced, safe and easy-to-use micro-PLC controller that makes it easy to add Internet of Things (IoT) capabilities to industrial applications. It can be programmed using languages known from PLC devices. It was developed in cooperation with Finder and is an ideal tool for PLC engineers. Arduino AFX00001
Arduino Opta is an advanced, safe and easy-to-use micro-PLC controller that makes it easy to add Internet of Things (IoT) capabilities to industrial applications. It can be programmed using languages known from PLC devices. It was created in cooperation with Finder and is an ideal tool for PLC engineers.. Arduino AFX00003
Board with SAMD21 microcontroller with CortexM0 + core (48 MHz, 256 KB Flash, 32 KB RAM). Equipped with WiFi and BT module (based on ESP32) and IMU LSM6DS3 unit. Ideal for applications in the IoT area. Module with headers. Arduino ABX00032
Arduino Uno Rev3 is a popular board with Atmel ATmega328 microcontroller from the AVR family, there are 14 I / O lines, 6 PWM channels and 6 analog inputs. The additional ATmega16U4 microcontroller realizes communication via the USB interface. Arduino A000066
Arduino development board that combines the functionality of the popular Arduino Nano platform with the powerful ESP32-S3 chip from u-blox. It is a compact and versatile module that is ideal for a variety of IoT related projects. Arduino ABX00092
Module with a dual-core STM32H747XI CortexM7+M4 microcontroller with a clock speed of up to 480 MHz. Equipped with Ethernet communication. Arduino ABX00045
Arduino development board with RP2040 microcontroller. Equipped with WiFi and Bluetooth module, 6-axis IMU system with accelerometer and gyroscope, MEMS microphone, RGB LED diode and cryptographic system. Arduino ABX00053
Board with NXP® i.MX 8M Mini processor (Linux) and dual-core STM32H747XI CortexM7 + M4 microcontroller. Equipped with WiFi and Bluetooth 5.1 communication. Arduino ABX00049
No product available!
Discover the latest revision of Arduino Uno - the most popular development kit in the world. The Arduino Uno in its newest iteration impresses with a three-fold increase in clock speed, eight-fold larger flash capacity, and a sixteen-fold increase in SRAM capacity. But that's just the beginning, as Arduino Uno also offers a wide range of additional peripherals, powered by a 32-bit Renessas RA4M1 microcontroller with an ARM M4 core. With the new Arduino Uno, you don't have to worry about compatibility, as the board is compatible with all shields from previous revisions. Thanks to the elaborate security systems and compatibility with existing guides and projects, Arduino Uno becomes the ideal solution for both beginners and advanced electronics enthusiasts. Arduino ABX00080