Adafruit STEMMA Modules & Boards & Kits

Plug & play connectivity for educational and DIY electronics is improving. STEMMA is an eco-system of breakout boards and sensors to expand your Feather, Arduino, Microbit, Raspeberry Pi, Adafruit Circuit playground, Adafruit CLUE.

There are three types of STEMMA connectors;

1. STEMMA 4 Pin JST PH - These are larger 2.0mm pitch connectors
2. STEMMA 3 Pin JST PH - These are larger 2.0mm pitch connectors
3. STEMMA QT ('cutie') 4 Pin JST SH - These are smaller 1.0mm pitch connectors

You can read technical specification here.

If you are after comparison of Grove, STEMMA, Gravity, QWIIC look here.