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SparkFun Qwiic Shield for Arduino

The SparkFun Qwiic Shield is an easy-to-assemble board that provides a simple way to incorporate the Qwiic Connect System with your Arduino-based device. This shield connects the I2C bus on your Arduino to a series of SparkFun Qwiic connectors and provides the circuitry to convert the 5V given to the 3.3V required by I2C boards in our Qwiic system. As long as your devices are on different addresses, the Qwiic system allows for daisy chaining, meaning you can stack as many sensors as you’d like to create a tower of sensing power!

The Qwiic Shield has four Qwiic connection ports, all on the same I2C bus, as well as a large prototyping area to design and make your own unique circuits. The shield also has a few 3-by-1 rails to help with prototyping, as well as buses for ground, 5V and even 3.3V. We have included four mounting ports in the same design as our Qwiic sensors, allowing you to affix your small board to the top of the shield.

This shield is a great retrofit for any Uno you may have. What a solder free solution? Skip the shield and checkout the SparkFun BlackBoard which has the Qwiic system built in!

The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Note: This includes R3 Arduino headers, but they are not pre-soldered onto the board, so some assembly will be required when putting the shield together.

  • 1x SparkFun Qwiic Shield for Arduino
  • 1x Arduino Stackable Header Kit -- R3
  • 4x Qwiic Connection Ports
  • Large Prototyping Area
  • 3-by-1 Prototyping Rails

SparkFun Qwiic Shield for Arduino Product Help and Resources

Qwiic Shield for Arduino & Photon Hookup Guide

October 19, 2017

Get started with our Qwiic ecosystem with the Qwiic shield for Arduino or Photon.

AS726X NIR/VIS Spectral Sensor Hookup Guide

October 19, 2017

It's now easier than ever to measure and characterize how different materials absorb and reflect different wavelengths of light. The AS726X spectral sensors allow you to detect wavelengths in the visible range (VIS) and near infrared range (NIR)!

SparkFun GPS Breakout - XA1110 (Qwiic) Hookup Guide

October 19, 2017

Figure out where in the world you are with the Qwiic SparkFun GPS Breakout - XA1110.

Qwiic Magnetometer (MLX90393) Hookup Guide

May 3, 2018

Figure out how magnetic fields are oriented, all without having to solder a thing.

Pulse Transit Time for Cuff-less BP from ECG...

Ashwin K Whitchurch

MAX86150 puts ECG and SPO2 on a single chip, opening new opportunities for calculation of pulse transit time and indirect blood pressure.

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Agree with the above. There's also the problem that the HV SDA and SCL signals are connected to A4 and A5, not the SDA and SCL pins meant to be used since the R3. Using A4 and A5 means that this shield won't work with the Leonardo and the Mega.

  • Am I missing something? Why doesn't this use IOREF for the high-side voltage, which is put there specifically to allow shields to be used interchangeably with 3V3 an 5V Arduino varieties? Sure, I can rewire some things, but it makes no sense to do it this way.

  • "This shield is a great retrofit for any Uno you may have." I have tried this on several genuine Unos, and it doesn't fit right. The larger USB connector on older Unos prevents this shield from seating properly. This board would be SO much better if it had considered the USB connector cutout on most shields, and using the dedicated SDA/SCL pins instead of A4/A5.

  • "This shield is a great retrofit for any Uno you may have." is simply not true. This doesn't work as a Qwiic shield on boards like the Turbo. However, I think the prototyping area is better than what is provided on the actual ProtoShield that is sold.

Customer Reviews

5 out of 5

Based on 1 ratings:

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Does what's on the label

It's fine. Does exactly what's on the label. Nice to have the proto space in addition to the Qwiic ports. It would have been nice to have more buses/groups-of-3 and accommodations for TO-92 transistors, and perhaps to have both 5V and GND near both sets of IO port headers.