Adafruit
5-pin (Arduino MKR) to 4-pin JST SH STEMMA QT / Qwiic Cable - 100mm long
This 100mm adapter cable connects STEMMA QT / Qwiic sensors to Arduino MKR boards. It features a 4-pin JST SH (STEMMA QT / Qwiic) connector on one end and a ...
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This 100mm adapter cable connects STEMMA QT / Qwiic sensors to Arduino MKR boards. It features a 4-pin JST SH (STEMMA QT / Qwiic) connector on one end and a 5-pin JST SH (Arduino MKR I2C) connector on the other, with the wiring crossed over for correct pin mapping between the two systems.
Use this cable to connect any Adafruit STEMMA QT sensor or breakout board to Arduino MKR WiFi 1010, MKR Zero, MKR Vidor, and other MKR-family boards without soldering or breadboarding.
Key Features
- STEMMA QT to MKR Adapter – Bridges the 4-pin STEMMA QT / Qwiic ecosystem to 5-pin Arduino MKR I2C
- 100mm Length – Compact cable for close-proximity connections
- JST SH Connectors – 1mm pitch connectors on both ends for secure, reversible connections
- No Soldering Required – Plug-and-play I2C connectivity
Wire Colour Guide
- Black – GND
- Red – V+ (connected to 5V on MKR boards)
- Blue – SDA
- Yellow – SCL
Specifications
- Length: 100mm
- Connector A: 4-pin JST SH (STEMMA QT / Qwiic compatible)
- Connector B: 5-pin JST SH (Arduino MKR I2C)
- Pitch: 1mm (JST SH)
Package Contents
- 1× 5-pin to 4-pin JST SH STEMMA QT / MKR Cable (100mm)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- 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.
- 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.
- SAMD21
- The SAMD21 is a Microchip (formerly Atmel) 32-bit Arm Cortex-M0+ microcontroller used in many Arduino-compatible boards. The exact chip affects which libraries, clock speeds and peripheral features are available, so software needs to support the SAMD21 specifically.
- SDA/SCL
- SDA and SCL are the two signal lines used by an I2C bus: data and clock. Seeing these names helps you identify the correct connections when wiring I2C devices, even though Qwiic cables usually hide that wiring for you.
- 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.
- UPS
- An uninterruptible power supply is a battery-backed power system that keeps a device running when external power is unplugged or fails. For an embedded computer, it helps prevent sudden shutdowns that can corrupt files or interrupt a project.
Find this product in
Prototyping & Wiring
introducing adafruit stemma qt
Document · 1.5 MB · Click any page to view full size
Resources & Downloads
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