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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 48 products · 12 unavailable products hidden
SparkFun Qwiic OLED Display (0.91 in., 128x32)
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The SparkFun Qwiic OLED Display is a compact 0.91″ (diagonal) monochrome OLED screen with 128 × 32 pixel resolution, capable of displaying up to four lines of text. As an OLED, it has no backlight layer — resulting in a thinner profile, lower power consumption, and higher contrast compared to LCD...
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...
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...
SparkFun Qwiic Kit for Raspberry Pi
The SparkFun Qwiic Kit for Raspberry Pi provides everything you need to start using I2C sensors and displays with your Raspberry Pi via the Qwiic connector system. The kit includes a Qwiic HAT that adds four Qwiic connectors to your Pi's GPIO header, along with three sensor/display breakouts and ...
SparkFun High Precision Temperature Sensor - TMP117 (Qwiic)
The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1°C across the temperature range of -20°C to +50°Cs with no calibration and a maximum range from -55°C to 150°C. The SparkFun High Pr...
SparkFun Qwiic Starter Kit for Raspberry Pi
The SparkFun Qwiic Starter Kit for Raspberry Pi provides everything you need to get started with I²C sensors on your Raspberry Pi using the Qwiic connect system. The kit includes the Qwiic pHAT v2.0, which adds four Qwiic connectors to your Pi's GPIO header, plus three sensor breakouts and connec...
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...
SparkFun Qwiic Twist - RGB Rotary Encoder Breakout
The SparkFun Qwiic Twist is a digital RGB rotary encoder breakout with built-in I²C interface. It handles all interrupt management, switch debouncing, and LED PWM internally, presenting encoder position, button state, and RGB colour control over a simple I²C connection via Qwiic connectors. The ...
SparkFun Qwiic 5V Boost - AP3012K - SparkFun Electronics
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The SparkFun Qwiic 5V Boost simplifies interfacing 5V I2C devices with the 3.3V Qwiic ecosystem. It takes the 3.3V I2C signals and power from its Qwiic connectors and boosts them to 5V, available on the PTH pins. This is perfect for powering peripherals like RGB LEDs or DC fans commonl...
SparkFun Micro Triple Axis Accelerometer Breakout - BMA400 (Qwiic)
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The SparkFun Qwiic BMA400 Micro Triple Axis Accelerometer Breakout offers a 3-axis acceleration sensor perfect for ultra-low-power applications on an easy-to-use Micro Qwiic format breakout board. Dubbed the first "real" ultra-low power acceleration sensor, the BMA400 is perfect when used in both...
SparkFun Qwiic Mini dToF Imager - TMF8821
The SparkFun Qwiic Mini dToF TMF8821 Imager is a direct time-of-flight (dToF) sensor that includes a single modular package with an associated Vertical Cavity Surface Emitting Laser (VCSEL) from AMS. The dToF device is based on Single Photon Avalanche Photodiode (SPAD), time-to-digital converter ...
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...
JST SH 4-pin Right Angle Connector (10-pack) - Qwiic Compatible
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A 10-pack of JST SH 4-pin right-angle connectors with 1 mm pitch through-hole mounting tabs. These are the standard connectors used with the Qwiic and STEMMA QT ecosystems, making it easy to add I2C connectivity to your own PCB designs. The solid plastic housing accepts standard Qwiic cables, an...
SparkFun Qwiic Shield for Teensy - Extended
An extended Qwiic shield that adds four Qwiic connectors to Teensy 4.1, Teensy 3.6, and Teensy 3.5 boards. Connects the I²C bus (GND, 3.3 V, SDA, SCL) to two horizontal and two vertical Qwiic ports for easy daisy-chaining of I²C sensors and actuators. Includes a PROG button that mirrors the Teen...
SparkFun Qwiic Keypad - 12 Button
Keypads are very handy input devices, but who wants to tie up seven GPIO pins, wire up a handful of pull-up resistors, and write firmware that wastes valuable processing time scanning the keys for inputs? The SparkFun Qwiic Keypad comes fully assembled and makes the development process for adding...
SparkFun Qwiic OpenLog
The SparkFun Qwiic OpenLog is an I²C-based data logger that stores serial data to a microSD card. Based on the popular OpenLog, this version replaces the serial interface with I²C and Qwiic connectors, allowing you to daisy-chain multiple sensors and log data without occupying your serial port. ...
SparkFun Qwiic Micro - SAMD21 Development Board
Looking for a super small microcontroller to use with the Qwiic eco-system? The SparkFun Qwiic Micro is molded to fit our standard 1"x1" Qwiic standard size which makes it one of our smallest micro-controller offerings to date. At it's core is the powerful and versatile ATSAMD21E18, which is an A...
SparkFun Qwiic GPIO
The SparkFun Qwiic GPIO adds eight additional digital I/O pins to your project via I2C, based on the TCA9534 I/O Expander from Texas Instruments. Read and write pins just like standard Arduino digital pins using the included library — functions mirror familiar pinMode and digitalWrite calls. All...
SparkFun Capacitive Touch Slider - CAP1203 (Qwiic)
Do you want to replace a slider or a button on your art project or science experiment with a more interesting interface? This Capacitive Touch Slider is a "Qwiic" and easy way to add capacitive touch to your next project. With the board's built in touch pads, you can immediately start playing wit...
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...
