Choose this model of the BlueFly if you want to connect to Android or iOS devices. Android devices connect using Bluetooth SPP. iOS devices connect using BLE. You can connect it to a Windows PC via USB to adjust settings.
This blog post provides more information on assembly and technical design: http://blueflyvario.blogspot.com.au/2017/01/blueflyvariobluetoothusbv12-released.html
The package includes:
- BlueFlyVario_Bluetooth_USB_v12 main board programmed with the latest firmware, and with a small piece of neoprene protecting the sensor.
- 750 mAh Lithium Polymer battery.
- 4 x 5mm nylon M3 hex standoffs and 4 x 5mm M3 nylon screws.
- The skyblue BlueFly case.