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Qwiic is SparkFun’s 4-pin JST-SH (1.0mm) I2C plug-and-play ecosystem (also compatible with STEMMA QT). Here are the most useful picks depending on what you’re trying to do:
Get started (cables/adapters)
- If you want a variety of cable lengths in one go: SparkFun Qwiic Cable Kit ($29.75)
- To convert a classic I2C breakout to Qwiic: SparkFun Qwiic Adapter ($3.25)
Add more Qwiic ports (hubs/splitters)
- Simple way to add extra ports to a single-connector board: SparkFun Qwiic MultiPort ($5.05)
- Star-style hub with 4 extra Qwiic ports: Qwiic MultiStar Constellation Ornament ($11.05)
- Compact splitter for up to 5 ports (Qwiic/STEMMA QT): Adafruit Qwiic / Stemma QT 5 Port Hub ($5.30)
Bridge to other connector ecosystems
- Qwiic to Grove adapter cable: Qwiic Cable - Grove Adapter (150mm) ($4.95)
- Grove/STEMMA to Qwiic/STEMMA QT JST-SH adapter: 4-pin JST PH to JST SH Cable - STEMMA / Grove to QT / Qwiic - 200mm long ($2.15)
- Another Grove-to-Qwiic cable option: Grove to STEMMA QT / Qwiic / JST SH Cable - 100mm long ($4.15)
- Longer Qwiic-to-STEMMA cable: Flexible Qwiic to STEMMA Cable - 500mm ($7.10)
Add Qwiic to Raspberry Pi / Arduino / Feather-style boards
- Raspberry Pi add-on with Qwiic ports: SparkFun Qwiic HAT for Raspberry Pi ($13.35)
- Minimal Pi option to add a single connector: SparkFun Qwiic SHIM for Raspberry Pi ($3.55)
- Arduino shield for Qwiic I2C: SparkFun Qwiic Shield for Arduino ($16.50)
- Feather/Thing Plus connector add-on: SparkFun Qwiic / Stemma QT FeatherWing (Shield for Thing Plus) ($14.15)
- Pi starter bundle: SparkFun Qwiic Kit for Raspberry Pi ($121.35)
Popular Qwiic devices (examples)
- Sensor for gardening/projects: Qwiic Soil Moisture Sensor ($12.90)
- Easy numeric/text output: Qwiic Alphanumeric Display - Blue ($20.20)
- Sharp 128x128 OLED UI: Qwiic OLED Display - 1.5in 128x128 ($58.90)
- Environmental sensing: SparkFun Atmospheric Sensor Breakout - BME280 (Qwiic) ($34.25) or SparkFun Environmental Sensor Breakout - BME680 (Qwiic) ($46.50)
- Advanced colour/light measurement: AS7343 Qwiic Spectral Sensor ($43.20)
Control / logging / input over I2C
- Switch loads via I2C relay: Qwiic Relay - 1x1A DPDT ($18.35)
- Log data to microSD over I2C: SparkFun Qwiic OpenLog ($42.30)
- Rotary encoder input with RGB: SparkFun Qwiic Twist - RGB Rotary Encoder Breakout ($51.60)
- I2C motor control: SparkFun Qwiic Motor Driver ($48.10)
What are you looking for in the Qwiic ecosystem?
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Showing 21-40 of 80 products · 20 unavailable products hidden
Qwiic WAV Trigger Pro
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This compact audio trigger board is a high-fidelity polyphonic WAV player for interactive installations, instruments, exhibits and embedded sound projects. It plays uncompressed 16-bit, 44.1kHz mono and stereo WAV files from a microSD card, with CD-quality audio and very low trigger-to-sound late...
Indoor Air Quality Combo Sensor - SCD41/SEN55 (Qwiic)
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Build a detailed indoor air monitor with this Qwiic combo board, pairing Sensirion’s SCD41 CO2 sensor with the SEN55 environmental sensor node. Together they measure CO2, volatile organic compounds (VOCs), particulate matter across PM1.0, PM2.5, PM4 and PM10, temperature and relative humidity.The...
Qwiic Alphanumeric Display - Pink
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Add bright pink letters, numbers and symbols to your project with this Qwiic alphanumeric display. Its fourteen-segment digits give you far more flexibility than a standard seven-segment display, making it useful for status readouts, short labels, timers and compact user interfaces.The board uses...
FPC2534 Qwiic Fingerprint Sensor
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This breakout brings secure fingerprint authentication to embedded projects while keeping the complex biometric work on the sensor itself. Built around the FPC2534 from Fingerprint Cards AB, it handles enrolment, encryption, internal storage and authentication without requiring your host microcon...
Qwiic Directional Pad (PRT-26851)
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Add five-way navigation input to an I2C project without building a button matrix from scratch. Press up, down, left, right or centre on the low-profile directional pad to send button input to your microcontroller.The board uses a PCA9554 8-bit I2C I/O expander to read the momentary buttons, with ...
GPS-RTK Board - NEO-M8P-2 (Qwiic)
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Built around the u-blox NEO-M8P-2, this breakout brings high-accuracy GNSS and GPS positioning with RTK support to the Qwiic ecosystem. It’s designed for applications where standard GPS accuracy isn’t enough, with RTK positioning down to 25mm so you can track the location of a device, robot or ve...
MCP3421 18-Bit ADC Breakout - STEMMA QT / Qwiic
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This compact breakout adds a high-resolution, single-channel ADC to your I2C bus, making it a handy choice for precision differential measurements. It is built around the MCP3421, a simple and low-cost 18-bit ΔΣ converter with adjustable gain, a built-in precision reference voltage, and support f...
SparkFun Qwiic Pro Micro - USB-C (ATmega32U4)
This compact Arduino-compatible microcontroller board updates the classic Pro Micro format with handy modern additions while keeping the same overall footprint. It uses the ATmega32U4, giving you full USB functionality in a small board that can fit into tight builds.The board breaks out the famil...
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
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This compact breakout provides electrical isolation between two sides of an I2C bus, helping separate earth-grounded circuits, reduce noise, or protect sensitive low-voltage monitoring equipment from faults cascading across the bus.The ISO1540 is fully bidirectional, supports clock stretching, an...
SparkFun Micro 6DoF IMU Breakout - LSM6DSV16X (Qwiic)
The SparkFun Micro 6DoF IMU Breakout features the STMicroelectronics LSM6DSV16X — a high-performance, low-power 6-axis IMU with a 3-axis accelerometer and 3-axis gyroscope. Its triple-core architecture processes data on three separate channels (UI, OIS, EIS) with dedicated configuration, processi...
Flexible Qwiic Cable - 50mm
This is a 50mm long 4-conductor cable with 1mm JST termination. It’s designed to connect Qwiic enabled components together but can be used for other applications as well. The cable insulation is made from silicon making it more flexible than our original Qwiic cable particularly in t...
SparkFun Qwiic Adapter
The SparkFun Qwiic Adapter provides the perfect means to make any old I2C board into a Qwiic-enabled board. This adapter breaks out the I2C pins from the Qwiic connectors to pins that you can easily solder with your favorite I2C-enabled device. The Qwiic Adapter has two Qwiic connection ports...
SparkFun Qwiic Cable Kit
The SparkFun Qwiic Connect System is constantly growing in popularity with makers. So to make it even easier to get started, we’ve assembled this Qwiic Cable Kit for everyone. If you aren’t sure which Qwiic cable to use, this handy box includes all of them allowing you to save a little money and ...
Qwiic Cable - Grove Adapter (150mm)
With the SparkFun Qwiic Connect System expanding every day, we want to make sure it becomes as accessible as possible but we understand there are other systems that can compliment it out there. The Qwiic to Grove Adapter Cable allows interoperability between the SparkFun Qwiic Connect System and ...
SparkFun Qwiic Single Relay
Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low powered microcontroller? The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet. The Single Relay board can handle up to 5.5A at 2...
SparkFun Qwiic Joystick
Now, you can easily add an HID/controller to your project! The SparkFun Qwiic Joystick combines the convenience of the Qwiic connection system and an analog joystick that feels reminiscent of the thumbstick from a PlayStation 2 controller and for that reason it's become a favorite of ours. The on...
SparkFun Proximity Sensor Breakout - 20cm, VCNL4040 (Qwiic)
The SparkFun VCNL4040 Proximity Sensor Breakout detects objects qualitatively up to 20 cm away using infrared proximity sensing. It also includes a built-in ambient light sensor, making it a versatile dual-function module. With no dead zone, it can read objects all the way to the face of the sens...
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 giv...
SparkFun GPS Breakout - XA1110 (Qwiic)
The SparkFun XA1110 GPS Breakout is a small I2C-supported module built for easy hookup, thanks to our Qwiic Connect System. Equipped with the XA1110 GPS module from GTOP, this board utilizes the MediaTek MT3333 chipset, loaded with specialized SparkFun firmware that enables both I2C and serial p...
SparkFun IR Array Breakout - 110 Degree FOV, MLX90640 (Qwiic)
It’s time to say hip hip array for this IR Breakout! The MLX90640 SparkFun IR Array Breakout is equipped with a 32x24 array of thermopile sensors creating, in essence, a low resolution thermal imaging camera. With this breakout you can detect surface temperatures from many feet away with an accur...
