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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 61-80 of 80 products · 20 unavailable products hidden
Zio Qwiic OLED Display (1.5inch, 128x128)
The Zio Qwiic OLED Display is a 1.5" (38 mm) monochrome OLED module with a 128×128 pixel resolution, capable of displaying up to 16 lines of text as well as graphics and animations. Two Qwiic (JST-SH) connectors on the back allow solderless daisy-chaining over I2C. The compact form factor and I2...
SparkFun controller:bit - micro:bit Carrier Board (Qwiic)
The SparkFun controller:bit is a fun-filled "carrier" board for the micro:bit that, when combined with the micro:bit, provides you with a fully functional controller system. Designed in a similar form factor to the classic Nintendo controller, the controller:bit is equipped with a four-direction ...
SparkFun Real Time Clock Module - RV-8803 (Qwiic)
The SparkFun RV-8803 Real Time Clock Module is a Qwiic-enabled breakout for the RV-8803 RTC, featuring a factory-calibrated temperature-compensated crystal for extremely precise timekeeping. It tracks hundredths of seconds, seconds, minutes, hours, date, month, year, and weekday, with multiple al...
SparkFun GPS-RTK-SMA Breakout - ZED-F9P (Qwiic)
With GPS you are able to know where you are, where you're going, and how to get there anywhere on Earth within 30 seconds. This means the higher the accuracy the better! GPS Real Time Kinematics (RTK) has mastered dialing in the accuracy of their GPS modules to just millimeters, and that's why we...
SparkFun Qwiic Shield for Thing Plus
The SparkFun Qwiic Shield for Thing Plus adds four Qwiic connectors (two horizontal, two vertical) to any Thing Plus or Adafruit Feather-format development board. It breaks out the I²C bus (GND, 3.3 V, SDA, SCL) to standard 1 mm pitch JST connectors for solderless daisy-chaining of Qwiic-compatib...
SparkFun Qwiic Shield for Arduino Nano
The SparkFun Qwiic Shield for Arduino Nano provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Arduino Nano board. The Qwiic shield connects the I2C bus (GND, 3.3V, SDA and SCL) on your Arduino Nano to four SparkFun Qwiic connectors (two horizontally and two ...
SparkFun GPS Breakout - NEO-M9N, Chip Antenna (Qwiic)
The SparkFun NEO-M9N GPS Breakout with on-board chip antenna is a high quality, GPS board with equally impressive configuration options. The NEO-M9N module is a 92-channel u-blox M9 engine GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations witn...
SparkFun GPS Dead Reckoning Breakout - NEO-M8U (Qwiic)
The SparkFun NEO-M8U GPS Breakout is a high quality, GPS board with equally impressive configuration options. The NEO-M8U takes advantage of u-blox's Untethered Dead Reckoning (UDR) technology. The module provides continuous navigation without needing to make any electrical connection to a vehicl...
Qwiic JST Connector - SMD 4-Pin (Vertical)
A surface-mount 4-pin JST connector in a vertical orientation, designed for the SparkFun Qwiic I2C ecosystem. This 1 mm pitch connector is used on all Qwiic-compatible boards and lets you build your own I2C devices that integrate seamlessly with the Qwiic system. The vertical mount profile is id...
SparkFun Photodetector Breakout - MAX30101 (Qwiic)
The SparkFun Photodetector Breakout is an updated version of the SparkFun Particle Sensor Breakout includes the MAX30101, a highly sensitive optical sensor and successor to the MAX30105 and MAX30102. The MAX30101 Breakout utilizes a photon detector to measure the amount of returning light that is...
SparkFun Humidity Sensor Breakout - SHTC3 (Qwiic)
Looking to keep a log of the climate in your greenhouse, create a humidor control system or want to track temperature and humidity data for a weather station project? The SparkFun SHTC3 Humidity Sensor may be the perfect option for you! The SHTC3 is a low cost, easy-to-use, highly accurate digita...
SparkFun Qwiic Thermocouple Amplifier - MCP9600 (Screw Terminals)
The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 ...
SparkFun Digital Temperature Sensor - TMP102 (Qwiic)
The SparkFun TMP102 Qwiic breakout provides accurate digital temperature readings over I2C with minimal wiring. Based on the Texas Instruments TMP102, the sensor delivers 0.0625 °C resolution and ±0.5 °C accuracy, communicating entirely over the I2C bus — no analogue conversion needed. This vers...
SparkFun Qwiic Thermocouple Amplifier - MCP9600 (PCC Connector)
The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 ...
Adafruit Triple-axis Magnetometer - LIS2MDL - STEMMA QT / Qwiic
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The Adafruit LIS2MDL is a triple-axis magnetometer (compass) breakout from ST, capable of sensing magnetic fields across a wide ±50 gauss (±5000 µT) range with no range configuration required. It's ideal for detecting magnetic north, measuring magnetic fields, or pairing with an accelerometer/gyr...
Adafruit LIS331 Triple-Axis Wide-Range ±24g Accelerometer - STEMMA QT / Qwiic
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The Adafruit LIS331 Accelerometer Breakout features the LIS331HH from ST — a triple-axis accelerometer capable of measuring up to ±24g, well beyond the ±16g limit of most standard accelerometers. It's ideal for high-impact and high-vibration applications where typical sensors would clip. Built i...
Adafruit PMSA003I Air Quality Breakout - STEMMA QT / Qwiic
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The Adafruit PMSA003I Air Quality Breakout is a compact laser-scattering particulate matter sensor with an I2C interface — a significant advantage over the UART-based sensors that dominate this category. Simply connect via STEMMA QT / Qwiic and start reading air quality data with no soldering req...
Adafruit H3LIS331 Ultra High Range Triple-Axis Accelerometer - STEMMA QT / Qwiic
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The Adafruit H3LIS331 is an ultra-high-range triple-axis accelerometer capable of measuring up to ±400g across all three axes. Part of the ST LIS331 family, it's designed for applications where standard ±16g accelerometers aren't enough — from high-impact testing and industrial machinery monitori...
SparkFun Qwiic Button - Green LED
Buttons are an easy and tactile way to interface with your project, but why would you want to deal with debouncing, polling, and wiring up pull-up resistors? The Qwiic Button with built-in green LED simplifies all of those nasty worries away into an easy to use I2C device! Utilizing our Qwiic Con...
SparkFun Qwiic MicroPressure Sensor
The SparkFun Qwiic MicroPressure Sensor is a miniature breakout equipped with Honeywell's MPR Series piezoresistive silicon pressure sensor. This MicroPressure Sensor offers a wide pressure sensing range of 60mbar to 2.5bar, easy to read 24 bit digital I2C output, and can be calibrated and compen...
