SparkFun Arduino UNO R4 WiFi Qwiic Kit Hookup Guide

Resources and Going Further

This is a basic guide to get you started with your SparkFun Arduino UNO R4 WiFi Kit. For more information, check out the resources below:

Qwiic LED Button

• Schematic (PDF)
• Eagle Files (ZIP)
• Board Dimensions (PNG)
• Qwiic Button Arduino Library
• GitHub Hardware Repo

Qwiic Twist

• Schematic (PDF)
• Eagle (ZIP)
• Qwiic Twist Register Map
• SparkFun Qwiic Twist Arduino Library
• GitHub Hardware Repo - For Qwiic Twist that includes the firmware for the ATtiny84

Qwiic OLED

• Schematic (PDF)
• Eagle Files (ZIP)
• Quick Start Guide
• SparkFun Arduino Library

Qwiic Ambient Light Sensor (VEML6030)

• Schematic (PDF)
• Eagle Files (ZIP)
• Datasheet (PDF)
• SparkFun Ambient Light Sensor Arduino LIbrary
• GitHub Hardware Repo

Triple Axis Accelerometer Breakout - BMA400 (Qwiic)

• Schematic (PDF)
• Eagle Files (ZIP)
• Board Dimensions (PNG)
• Datasheet (BMA400)
• BMA400 Arduino Library
• GitHub Hardware Repo

Qwiic Atmospheric Sensor (BME280)

• Schematic (PDF)
• Eagle Files (ZIP)
• BME280 Datasheet
• SparkFun BME280 Arduino Library
• GitHub Hardware Repo

Need help getting started with Arduino and I²C? Check out these resources:

• Arduino I²C Scanner Example
• Arduino Wire Library Reference Page
• Arduino Wire Library (In-Depth) Reference
• Qwiic Info Page