Power Pins

This breakout requires between 2.3V and 5.5V, and can be easily used with most microcontrollers from an Arduino to a Feather or something else. Power is connected through to both sides - this board is not a power isolator.

  • VCC - this is the power pin.  To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V micro like Arduino, use 5V
  • GND - common ground for power and logic

Logic Pins

  • SCL - I2C clock pin, connect to your microcontrollers I2C clock line. The logic level is the same as VCC.
  • SDA - I2C data pin, connect to your microcontrollers I2C data line. The logic level is the same as VCC.
  • STEMMA QT - These connectors allow you to connect to dev boards with STEMMA QT connectors or to other things with various associated accessories.

Other Pins

  • EN - This is the Enable input pin. Allows you to disconnect the in and out sides when pulled low
  • RDY - This is the Ready output pin. It will let you know if the peripheral is buffer-connected to the controller (and is safe to attempt communication).

This guide was first published on Jul 17, 2021. It was last updated on Mar 08, 2024.

This page (Pinouts) was last updated on Mar 08, 2024.

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