Position the header

Trim the header to length if necessary and insert it (long pins down) into your breadboard.

Position the Breakout

Place the breakout over the exposed short end of the header pins.

And Solder!

Solder all pins to ensure good electrical contact.

Flora Wiring:

Connect from:

• 3.3v -> 3v (red wire)
  
• GND -> GND (black wire)
  
• SDA -> SDA (white wire)
  
• SCL -> SCL (green wire)
  

Arduino Wiring:

Connect jumpers from:

• 5v -> VIN (red wire)
  
• GND -> GND (black wire)
  
• SDA -> SDA (orange wire)
  
• SCL -> SCL (white wire)
  

Note: On older Arduinos such as the Duemilanove and pre R3 UNOs, SDA is on Analog 4 and SCL is on Analog 5.

On pre-R2 Megas, SDA is on Digtital 20 and SCL is on digital 21.

For the Leonardo, SDA is digital pin 2 and SCL is digital pin 3.