Solder four wires to the I2C pins on the Backpack. The colors I used in the picture above are the same as the ones in the circuit diagram on the previous page.

  • Red: VCC
  • Black: GND
  • Blue: SDA
  • Yellow: SCL

Connect the four wires to the Pro Trinket and PowerBoost as listed below:

  • Red: 5V on the PowerBoost
  • Black: GND on the Pro Trinket
  • Blue: A4 on the Pro Trinket
  • Yellow: A5 on the Pro Trinket

Finally use some super glue to secure the eight magnets to the cavities on the enclosure. Wait for a little bit to allow the glue to dry completely.

The two pieces snap together easily, and we've finally finished the entire assembly process!

This guide was first published on Sep 04, 2014. It was last updated on May 23, 2024.

This page (Interconnection) was last updated on Sep 03, 2014.

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