Qwiic MultiPort Hookup Guide

Contributors:

Introduction

The SparkFun Qwiic Multiport adds additional ports to boards that have only one Qwiic port on their I²C bus. Once added, you can use it as a hub to add as many I²C devices to the bus as you need ^[1] ! You can also use the board as an alternative to a daisy chained configuration.

SparkFun Qwiic MultiPort

BOB-18012

$2.10

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Note: Technically, there are limitations to how many boards that you can add to the bus. You may need to adjust pull-up resistors depending on what is connected. This is usually about 7x boards. You may also need to disconnect 3.3V to certain devices and inject power depending on the total power required. Keep in mind the Qwiic cable wires are small and have a max current of about 226mA.

Required Materials

To follow along with this tutorial, you will need a microcontroller or single board computer with a Qwiic connector. You will also need a Qwiic cable and a way to power the board. You may not need everything though depending on what you have. Add it to your cart, read through the guide, and adjust the cart as necessary.

Besides having the Qwiic MultiPort in your cart, here are the parts if you decide to go with a microcontroller. You can easily swap out the microcontroller depending on your project's needs with MicroMod. Make sure to include the Qwiic-enabled device in your cart as well!

SparkFun Qwiic Cable Kit

KIT-15081

$8.95

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SparkFun MicroMod ATP Carrier Board

DEV-16885

$19.95

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USB 3.1 Cable A to C - 3 Foot

CAB-14743

$5.50

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SparkFun MicroMod SAMD51 Processor

DEV-16791

$18.95

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Here are the parts if you decide to go with a single board computer. The Qwiic SHIM kit is a great starting point if you do not have a Qwiic-enabled device in mind.