Chapter 1: Arduino UNO R4 WiFi

Section 1.1: Arduino UNO R4

Arduino UNO R4 comes into the market in late May 2023. Arduino UNO R4 has two types of boards:

• Arduino UNO R4 Minima
• Arduino UNO R4 WiFi

This tutorial will focus on Arduino UNO R4 WiFi.

Section 1.2: Arduino UNO R4 WiFi Specs

The following spec table is directly cited from official page of Arduino UNO R4 WiFi.

As we can see, the most important components of Arduino UNO R4 WiFi are:

• microcontroller Renesas RA4M1
• wifi module ESP32-S3