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;
- 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
You can read technical specification here.
|
Controller/Device |
STEMMA |
STEMMA QT |
Grove |
Qwiic |
Gravity |
|
Connector |
JST PH 3 or 4 Pin (2.0mm pitch) |
JST SH 4 Pin (1.0mm pitch) |
Proprietary 4 Pin (2.0mm pitch) |
JST SH 4 Pin (1.0mm pitch) |
JST PH 3 or 4 Pin (2.0mm pitch) |
|
Power Pin Voltage |
3-5V DC |
3-5V DC |
3-5VDC |
3V DC |
3-5V DC |
|
Logic Pins Voltage |
3-5V DC |
3-5V DC |
3-5V DC |
3V DC |
3-5V DC |
|
Data Protocol |
I2C only on 4 pin. Analog/Digital/PWM on 3 pin. |
I2C only |
I2C/Analog/Digital/PWM on 4 pin |
I2C only |
I2C or UART on 4 pin. Analog/Digital/PWM on 3 pin. |
If you are after comparison of Grove, STEMMA, Gravity, QWIIC look here.
