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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 100 products
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...
INA228 Qwiic Current Sensor Breakout
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This compact Qwiic breakout uses the Texas Instruments INA228 digital power monitor to measure DC current and power with high precision over I2C. The onboard 20-bit delta-sigma ADC supports readings for current, voltage, power, temperature, energy and charge accumulation.For quick wiring, the boa...
INA237 Qwiic Current Sensor
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Monitor DC current and power over I2C with this Qwiic breakout based on the Texas Instruments INA237 digital power monitor. It measures current, bus voltage, internal temperature and power for an in-line DC input using a 16-bit delta-sigma ADC.The board is set up for flexible wiring: use the pair...
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...
LIS3DH Micro Triple Axis Accelerometer Breakout (Qwiic)
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This ultra-small Qwiic-enabled breakout adds three-axis acceleration sensing to compact projects using the LIS3DH, a smart, low-power capacitive micro-machined accelerometer with 12-bit resolution. It can be used for translation detection and is classified as a 3DoF, or 3 Degrees of Freedom, sens...
Qwiic 24-Bit 4-Channel ADC Breakout - ADS1219
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When the ADC built into your microcontroller is not precise enough, this Qwiic breakout adds a high-resolution Texas Instruments ADS1219 for measuring very small analogue voltage changes.The board provides four channels of 24-bit analogue input, which can be used as four single-ended inputs or co...
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 Relay - 1x1A DPDT
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Control higher-power loads from a microcontroller over I2C with this Qwiic relay board. It is built around the Omron G6K-2F-Y DC3 dual-pole/dual-throw relay, letting a low-voltage logic system switch loads up to 1A at 30VDC or 0.3A at 125VAC at 40°C.The board offers both software and hardware con...
Qwiic OLED Display - 1.5in 128x128
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This compact OLED board gives your project a crisp monochrome white-on-black interface in a 1.5-inch square form factor. With 128x128 pixels and a 1:1 aspect ratio, it suits custom graphics, menus, status screens and data plotting.The display uses Chip-on-Glass (COG) OLED technology, so each pixe...
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 Power Switch
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This compact Qwiic board lets you switch power to downstream Qwiic devices so high-current modules can be turned off when they are not needed. That can help conserve energy in battery-powered builds using GNSS and other power-hungry Qwiic boards.It also provides I2C bus isolation, so slower 100kH...
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...
