You can listen in on a two meter repeater and you can build a GPS module speedometer. That’s what [Jeremy Cook] did with just a few parts, a little 3D design, and some handy zip ties to hold it ...

Q: What would be more accurate, my vehicles speedometer or a GPS I have on my dashboard? A: They both can be accurate and inaccurate. Speedometer: Aftermarket modifications, such as different tire ...

Instead, this build is an analog display for GPS-acquired speed data ... The display itself is a gutted marine speedometer fitted with the movement from a motorcycle tachometer.

Built for simplicity, elegance, and extreme practicality, Speed is a GPS speedometer that uses the iPad’s location data to tell you how fast you’re traveling. It works with iPads that have GPS ...