Arduino Uno R4 WiFi Board (ABX00087)

The Arduino Uno R4 WiFi board integrates a 32-bit Renesas RA4M1 microcontroller with an ARM Cortex M4 core. It features 256 kB of Flash memory and 32 kB of SRAM, along with 14 digital I/O pins, 6 PWM channels, 6 ADCs, and 1 DAC. Its design maintains pin compatibility and 5 V logic voltage with the Uno R3 version, facilitating the migration of existing projects.

Wireless WiFi and Bluetooth communication is managed by the ESP32-S3-Mini chip. It includes a 12x8 matrix of addressable red LEDs, a Qwiic connector, and support for HID over USB-C. It offers SPI, I2C, UART, and CAN interfaces, in addition to a 12-bit DAC and an SWD debug port. It operates with a supply voltage of up to 24 V, incorporating protections against incorrect connections.

• 32-bit Renesas RA4M1 ARM Cortex M4 microcontroller
• WiFi and Bluetooth connectivity via ESP32-S3-Mini chip
• Integrated 12x8 matrix of addressable red LEDs
• Pin and voltage compatibility with Arduino Uno R3
• USB-C interface with HID support
• Power supply up to 24 V with electrical protections