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 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
Warning: The power pin supplies 5V from the MKR board. SparkFun Qwiic boards expect 3.3V — do not use this cable with Qwiic boards unless you have confirmed they are 5V-safe. Adafruit STEMMA QT boards have 10K pull-ups to the 5V Vin pin. For reliable I2C with SAMD21 MKR boards, consider adding 2× external 2K resistors from SDA/SCL to 3.3V to bring down the pull-up voltage.
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
The 5-pin (Arduino MKR) to 4-pin JST SH STEMMA QT / Qwiic Cable - 100mm long appears in the following collections:
SKU AF-4483
by Adafruit
