SparkFun STEMMA QT / Qwiic Breadboard Breakout Adapter

Product ID: 4527


The SparkFun Qwiic Adapter can make any old I2C board or sensor a STEMMA QT / Qwiic-enabled one. This adapter breaks out the I2C pins from the JST SH connectors to pins that you can easily solder with your favorite I2C-enabled device.

The Qwiic Adapter has two JST SH connection ports, all on the same I2C bus. Four plated through holes are broken out for SCL, SDA, 3.3V and GND. Simple? Yes, and very effective!


  • 2 x JST SH (Qwiic / STEMMA QT) Connection Ports
  • Broken-out I2C Pins

Please note, no header is included, some light soldering is required!

Play video: What is Stemma QT? #adafruit #stemma

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Technical Details

  • Dimensions: 23.4mm x 8.2mm x 4.7mm
  • GitHub
RoHS 2 2011 65 EU Compliant
RoHS 2 2015 863 EU Compliant


Son of Pianocade, it's a joystick and arcade button arpeggiator synth and MIDI controller!