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 2021-07-17 16:00:09 -0400.

This page (Pinouts) was last updated on Aug 27, 2021.

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