Arduino Uno R4 WiFi - Genuine Microcontroller
Features
- Renesas RA4M1 32-bit Cortex®-M4 processor
- Espressif S3 WiFi module
- Same form factor, shield compatibility, and 5V operating voltage as the Uno R3
- 48 MHz
- 32 kB SRAM (upgraded from 2 kB)
- 256 kB FLASH memory (upgraded from 32 kB)
- USB-C
- Maximum supply voltage: 24 VDC
- DC Power jack size: 2.1mm x 5.5mm
- Enhanced thermal design
- CAN bus
- SPI port
- 12-bit analog DAC
Overview
The Arduino Uno R4 ABX00087 WiFi Genuine Microcontroller represents a significant leap forward in the world of DIY electronics, appealing to enthusiasts, students, and professionals alike. Retaining the familiar form factor of its predecessors, the UNO R4 ensures maximum compatibility with existing shields and operates at a 5V voltage. However, the introduction of the Renesas RA4M1 32-bit Cortex®-M4 CPU marks a substantial enhancement, tripling the processing speed of its predecessor and boosting memory capacity and functionality.
This upgrade is complemented by the integration of the ESP32-S3 from Espressif, which provides robust wireless connectivity, making the Arduino Uno R4 WiFi an ideal choice for a wide range of applications requiring both processing power and network capabilities. Additionally, the board boasts an on-board 12x8 LED matrix, a Qwiic connector, VRTC, and an OFF pin, ensuring it meets the diverse needs of makers in their various projects.
Stand Out Performance
The UNO R4 stands out with its RA4M1 (Arm Cortex®-M4) CPU running at 48 MHz, offering a performance three times that of its previous iteration. This advancement is supported by an increase in SRAM from 2kB to 32kB and flash memory from 32kB to 256kB, allowing for more complex and memory-intensive projects.In response to user feedback, the board has transitioned to a USB-C connector for modern connectivity and improved thermal design, enabling a maximum power supply voltage of up to 24V. Furthermore, the inclusion of a CAN bus and an SPI port facilitates streamlined connectivity with multiple shields, reducing wiring complexity and enhancing the ability to perform parallel tasks. The 12-bit analog DAC is a notable addition, which broadens the scope for applications requiring precise analog outputs. Overall, the Arduino Uno R4 is a versatile and powerful tool that significantly expands the possibilities for creators in various fields.