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Grove to STEMMA QT / Qwiic / JST SH Cable - 100mm long
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SparkFun Qwiic Ecosystem
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A 100 mm adapter cable that bridges the gap between Grove and STEMMA QT / Qwiic ecosystems. One end features a Grove connector, the other a JST SH (STEMMA QT...
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A 100 mm adapter cable that bridges the gap between Grove and STEMMA QT / Qwiic ecosystems. One end features a Grove connector, the other a JST SH (STEMMA QT / Qwiic compatible) connector — making it easy to mix and match sensors, breakouts, and host boards across different connector standards.
Key Features
- Cross-Ecosystem Compatibility – Connects Grove devices to STEMMA QT / Qwiic boards and vice versa
- 100 mm Length – Compact cable for tidy wiring
- I2C Ready – Pre-wired for I2C communication (SDA, SCL, V+, GND)
Wire Colours
- Black – GND
- Red – V+ (3.3 V for Qwiic, 3–5 V for STEMMA QT)
- Blue – SDA
- Yellow – SCL
Compatibility
- Grove I2C sensor (3–5 V) → STEMMA QT or Qwiic host (3 V)
- STEMMA QT sensor (3–5 V) → Grove or STEMMA host (5 V)
- Qwiic sensor (3 V only) → Grove or STEMMA host — ensure power is set to 3 V
Warning: When connecting a Qwiic board (3 V power only) to a Grove or STEMMA host, make sure the power switch is set to 3 V to avoid damaging the sensor.
Ideal For
- Connecting Grove sensors to Qwiic/STEMMA QT host boards
- Bridging different I2C connector ecosystems
- Quick prototyping with mixed-ecosystem components
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- Grove
- Grove is a standardised 4-pin plug-in connector system for sensors and modules that avoids soldering and jumper wires, with different cable types carrying I2C, UART, analogue or digital signals. When a product is Grove-compatible it can be quicker to connect supported modules, provided the connector type, signal and voltage all match.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- SCL
- The clock line used by the I2C bus to keep data transfers timed between a controller and connected devices. When wiring I2C, SCL must be connected to the SCL pin on every device sharing the bus.
- SDA
- The data line used by the I2C bus to carry information between a controller and connected devices. When wiring I2C, SDA must be connected to the SDA pin on every device sharing the bus.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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introducing adafruit stemma qt
Document · 1.5 MB · Click any page to view full size
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