UNO R4 WiFi Compatible with Arduino

Please note that this is a generic version.

The UNO R4 WiFi is the first UNO board to feature a 32-bit microcontroller and an ESP32-S3 Wi-Fi® module (ESP32-S3-MINI-1-N8). It features a RA4M1 series microcontroller from Renesas (R7FA4M1AB3CFM#AA0), based on a 48 MHz Arm® Cortex®-M4 microprocessor. The UNO R4 WiFi's memory is larger than its predecessors, with 256 kB flash, 32 kB SRAM and 8 kB of EEPROM.

The RA4M1's operating voltage is fixed at 5 V, whereas the ESP32-S3 module is 3.3 V. Communication between these two MCUs is performed via a logic-level translator (TXB0108DQSR).

Features and SpecificationsMicrocontroller: R7FA4M1AB3CFM#AA0 (RA4M1) | ESP32-S3-MINI-1-N8Processor: 48 MHz Arm® Cortex®-M4 | Xtensa® dual-core 32-bit LX7 microprocessorOperating Voltage (RA4M1): 5V Operating Voltage (ESP32-S3-MINI-1-N8): 3.3 VInput Voltage (VIN pad/ DC Jack): 6-24 VInput Voltage (USB-C): 5V256 kB Flash Memory / 32 kB SRAM / 8 kB Data Memory (EEPROM)Memory Protection Unit (MPU)Digital-to-analog Converter (DAC)Real-time Clock (RTC)Capacitive Touch Sensing Unit (CTSU)14-bit ADC12-bit DACOperational Amplifier (OPAMP)UART (pin D0, D1)SPI (pin D10-D13, ICSP header)I2C (pin A4, A5, SDA, SCL)CAN (pin D4, D5, external transceiver is required)40 MHz crystal oscillatorBluetooth® 5Wi-Fi® support with 802.11 b/g/n standard (Wi-Fi® 4)Bit rate at up to 150 Mbps2.4 GHz bandOperating Temperature: -40 °C - 85 °CQwiic I2C ConnectorUSB-C Connector12x8 on-board LED matrixOFF, VRTC Header (soldered pins)ICSP Header (soldered pins)ESP Header (soldered pins)