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!