It looks like you mistyped the URL in your address bar or have followed an old bookmark.
A few weeks ago I shared some research on absolute positioning without GPS. Since then I’ve continued digging into the subject, found a few more sources, and tried a few more things.
We have two excellent new products to share with you this week! The SIK gets a new case and a new version and the GNSS Combo Breakout (featuring the ZED-F9P and NEO-D9S) moves from SparkX to SparkFun Red!