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.
Currently, Google Maps navigation system can display the speed at which the car is moving. However, many people wonder why the speed shown on the map differs from the speed displayed on the car's ...
RP You’re right that GPS is usually more accurate than a speedometer. By law, manufacturers have to make sure that cars’ ...