I have seen these expensive things that you can put in a moving box while moving, to keep track of your stuff in case the moving people drive away with their truck and steal it. I also see expensive cat collars with GPS senders, allowing you to violate your cat's privacy by knowing exactly where it is.
Both of these things require the customer to create an account at some centralized company website and then pay a hefty "subscription fee" just to get to actually view this GPS data.
I don't wanna do that.
I want something which allows me to (somehow) capture the GPS signals as raw data, which I can then store in my own database, and/or plot onto my own map system, without any third party extracting money from me and knowing exactly what I'm tracking.
Is this possible at all? The part where the tracking device fetches GPS signals from the GPS satellites is easily understood, but the part where they then wirelessly transfer this back to me (and only me) is very foggy. And if the device only stores the GPS coordinates locally on some kind of micro flash memory, it's pretty useless as I would require physical access to the moving box or cat which may be stolen or trapped somewhere.
how to communicate with the cat collar?
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