The BlueFlys are shipped as a completed circuit board with the components listed in the product page. Shipping in this form is much cheaper as it makes the package less than 20mm thick, and I can use the saved time to focus on making more circuit boards.

Bluetooth_USB and USB Model Assembly

See this blog post for detailed instructions: BlueFlyVario_Bluetooth_USB_v12 Assembly

Also see this post for instructions on how you can add a GPS to the USB model (also applies to the Bluetooth_USB model):

TTL_GPS Model Assembly

See BlueFlyVario_TTL_GPS_v11 Assembly with the Kobo Glo for an example and links to many other blog posts for other models.

Also see Nev’s page for much more information: