Unleashed: Bluetooth GPS for Nikon Cameras | WIRED
Tutorial Electronics and Programming: Geotagging Nikon DSLR with Vectornav VN-200 GPS (Lattitude & Longitude) + IMU (Compass Heading)
Nikon D810 36.3MP DSLR Full Frame Camera + Built in Flash + 1080P + 3.2 LCD + Built in Flash + Wi-Fi & GPS Ready Kit - Walmart.com
Build a DIY Bluetooth GPS Unit for Your Nikon DSLR | PetaPixel
Sevenoak GPS N Camera GPS Tracker Receiver Navigation Remote Controller for Nikon DSLR Record Latitude Longitude Altitude UTC|camera gps receiver|for nikon d90gps camera nikon - AliExpress
Solmeta N3 geotagging module for Nikon DSLR review: fast GPS locks, minimal battery drain | Engadget