The latest PCB design files (for Autodesk Eagle) can be found on Github at:
If you use Fritzing, the Fritzing object for this breakout is also available on Github at:
You can download the datasheet for the ADXL343 via the button below:
Full-Features Pedometer Design (Analog Devices)
If you're interested in going one step further with the ADXL34x device family, you may find the following app-note from Analog Devices useful for ideas of technical tips:
This app note details a method of performing 'step detection' with an algorithm using threshold crossing and timing intervals, and may be a useful introduction to correlating sensor data with a specific behaviour model.