Arduino UNO R4 WiFi User Manual

Arduino® UNO R4 WiFi
4 / 23 Arduino® UNO R4 WiFi Modified: 26/06/2023
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CONTENTS
1 The Board
1.1 Application Examples
1.2 Related Products
2 Recommended Operating Conditions
3 Block Diagram
4 Board Topology
4.1 Front View
5 Microcontroller (R7FA4M1AB3CFM#AA0)
6 Wi-Fi® / Bluetooth® Module (ESP32-S3-MINI-1-N8)
6.1 ESP Header
6.2 USB Bridge
7 USB Connector
8 LED Matrix
9 Digital Analog Converter (DAC)
10 I2C Connector
11 Power Options
11.1 Power Tree
11.2 Pin Voltage
11.3 Pin Current
12 Pinout
12.1 Analog
12.2 Digital
12.3 OFF
12.4 ICSP
13 Mounting Holes And Board Outline
14 Board Operation
14.1 Getting Started - IDE
14.2 Getting Started - Arduino Web Editor
14.3 Getting Started - Arduino IoT Cloud
14.4 Online Resources
14.5 Board Recovery
15 Declaration of Conformity CE DoC (EU)
16 Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
17 Conflict Minerals Declaration

Arduino UNO R4 WiFi Specifications

General

Operating Voltage	5V
Input Voltage	6-24V
Digital I/O Pins	14
PWM Pins	6
Analog Input Pins	6
Flash Memory	256 KB
SRAM	32 KB
EEPROM	8 KB
Clock Speed	48 MHz
Wi-Fi	Yes
Bluetooth	Yes
USB Connector	USB-C
Dimensions	68.6 mm x 53.4 mm
DC Current per I/O Pin	8 mA
UART	Yes
SPI	Yes
I2C	Yes
CAN	No
Microcontroller	RA4M1 (Arm Cortex-M4)