To test the sensor before sewing it into a project, use alligator clips to hook up the 3.3v, SDA, SCL, and GND pins.

Stitching the sensor into a project is easy-- just line up the sensor so its adjacent to the SDA/SCL pins on Flora or another I2C sensor, and stitch the four connections with conductive thread. This is covered in more detail in the Flora Accelerometer guide and our Conductive Thread guide.