Connecting up the TCA4307 is super simple. Simply include it between your microcontroller and your I2C sensor or breakout as shown below.

Here is how to wire it up using STEMMA QT:

  • Board 3V to TCA4307 in VIN
  • Board GND to TCA4307 in GND
  • Board SCL to TCA4307 in SCL
  • Board SDA to TCA4307 in SDA
  • TCA4307 out VIN to breakout VIN
  • TCA4307 out GND to breakout GND
  • TCA4307 out SCL to breakout SCL
  • TCA4307 out SDA to breakout SDA

Here is how to wire it up using a solderless breadboard:

  • Board 3V to TCA4307 in VIN
  • Board GND to TCA4307 in GND
  • Board SCL to TCA4307 in SCL
  • Board SDA to TCA4307 in SDA
  • TCA4307 out VIN to breakout VIN
  • TCA4307 out GND to breakout GND
  • TCA4307 out SCL to breakout SCL
  • TCA4307 out SDA to breakout SDA

Now you're ready to hot--swap your I2C breakout or sensor!

This guide was first published on Jul 17, 2021. It was last updated on 2021-07-17 16:00:09 -0400.

This page (Wiring) was last updated on Apr 23, 2022.

Text editor powered by tinymce.