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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 1-20 of 80 products · 20 unavailable products hidden
Qwiic MultiStar Constellation Ornament
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Need more Qwiic ports without forcing every board into a single daisy chain? This star-shaped Qwiic MultiStar acts as a hub for the I2C bus, adding four extra usable Qwiic ports to a board that only has one.The board has five Qwiic connectors in total. One connects back to your main board, leavin...
AS7343 Qwiic Spectral Sensor
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Measure visible and near-infrared light with a compact Qwiic breakout based on the AS7343 multi-spectral sensor. It covers approximately 380nm to 1000nm and is suited to reflected, emitted and transmitted light measurements for spectroscopy tasks such as colour matching and spectral signature ana...
GNSS Timing Breakout - ZED-F9T-20B (Qwiic)
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Built around the u-blox ZED-F9T-20B receiver, this breakout is made for projects where precise time matters as much as location. Under clear skies it can provide five nanoseconds of timing accuracy without requiring external GNSS correction data, making it suitable for 5G IoT networks, distribute...
SAM-M8Q GNSS Receiver (Qwiic)
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Built around the u-blox SAM-M8Q module, this compact GNSS receiver is a straightforward way to add location tracking to a project. Plug in USB-C for power and configuration, or use the Qwiic connectors for solder-free I2C integration with compatible boards.The board includes an integrated smart a...
Quadband GNSS RTK Heading Breakout - LG580P (Qwiic)
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This high-precision positioning breakout is built around the Quectel LG580P GNSS module, giving projects centimetre-level RTK positioning plus instantaneous heading when used with two GNSS antennas. Unlike systems that need to move before they can infer direction, the dual-antenna setup can deter...
GPS-RTK Dead Reckoning Breakout - ZED-F9R (Qwiic)
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This high-precision GNSS breakout is built around the u-blox ZED-F9R, combining RTK positioning with Automotive Dead Reckoning (ADR) sensor fusion. It fuses a 3D IMU sensor, wheel ticks, a vehicle dynamics model, correction data and GNSS measurements to provide accurate and continuous positioning...
IN100 NanoBeacon Board with Qwiic
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This board is a low-power 2.4GHz BT beacon breakout built around the InPlay IN100 NanoBeacon. It is designed for fast deployment in wireless sensor monitoring, asset tracking, retail beaconing and real-time location tag projects where long field life and minimal programming are priorities.Power c...
LG290P Quadband GNSS RTK Breakout (Qwiic)
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Built around the Quectel LG290P, this compact RTK GNSS breakout is designed for high-precision positioning projects that need quad-band, multi-constellation reception. It follows the same board dimensions, pin layout and connectors as SparkFun’s GPS-RTK-SMA Breakout - ZED-F9P (Qwiic), making it a...
NEO-F9P GNSS-RTK L1/L5 Breakout with Qwiic
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Bring high-precision GNSS positioning to your project with the u-blox NEO-F9P engine and dual-band L1/L5 reception. L5 signals sit in the protected ARNS band, helping reduce RF interference and improve reliability in challenging environments such as dense city streets.The breakout provides five s...
Qwiic Alphanumeric Display - Blue
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Show numbers, letters, characters and symbols in bright blue with this compact four-character alphanumeric display. Each digit uses fourteen segments, giving you far more flexibility than a standard seven-segment display.It connects through the SparkFun Qwiic system, so setup is simple: plug in a...
Qwiic Soil Moisture Sensor
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This compact breakout board measures moisture in soil and similar materials using two large exposed pads as conductivity probes. As the soil gets wetter, conductivity between the pads increases, resistance drops, and the sensor produces a higher analog SIG output.For quick setup, the board includ...
Qwiic Alphanumeric Display - White
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This compact white alphanumeric display gives you fourteen-segment characters for showing numbers, letters and symbols in your project. It uses the VK16K33 LED driver over I2C, so it is a neat fit for Qwiic-based builds where you want readable text without lots of wiring.With Qwiic, you can plug ...
Qwiic Alphanumeric Display - Red
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Add letters, numbers and symbols to your project with red fourteen-segment digits that are much more flexible than a basic seven-segment display. This Qwiic display connects over I2C, so you can plug it in without soldering, without working out SDA and SCL by hand, and without adding separate vol...
u-blox ZED-X20P Allband GNSS RTK Breakout (Qwiic)
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This GNSS RTK breakout brings the u-blox X20 engine to a maker-friendly board for high-precision positioning projects. It is designed around the ZED-X20P all-band receiver and can process signals from GPS, Galileo, BeiDou, QZSS and NavIC across all GNSS frequency bands, including L-band.The board...
NEO-D9S GNSS Correction Data Receiver with Qwiic
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This NEO-D9S breakout is an L-Band satellite correction data receiver designed to feed correction streams to a compatible multi-band, high-precision GNSS receiver such as the u-blox ZED-F9P. With a clear view of the sky, especially to the south, it can decode L-Band correction broadcasts and help...
ACS37800 Qwiic Power Meter
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Built around the Allegro ACS37800, this Qwiic power meter lets your project monitor voltage and current at the same time over I2C. It is designed for higher-demand loads such as 3D printers, UAVs and solar panels, with voltage monitoring up to 60VDC and current sensing up to 30A.The ACS37800 uses...
Qwiic MCP4725 12-Bit DAC Breakout
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Generate a real analogue output from your microcontroller instead of relying on PWM. This MCP4725 breakout is a 12-bit Digital-to-Analogue Converter (DAC) that outputs precise voltage levels over an I2C/Qwiic connection.It is useful for projects that need smoother control signals, such as sound g...
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...
