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