GPS based speedometer

[supertjeduc]

I think Apple is about the only good thing that's come out of the USA

[Smitty]

check here there is a lot of samples.
(how much you wanna pay)? http://www.thefind.com/electronics/info-gps-speedometer#page=3
You can start at page 1 but here are a few examples. You can seek out speedometer healer, it can correct your current speed O.
 http://www.healtech-electronics.com/

Tim

[Drunken Monkey]

But what happened to the magic thing we were talking about? 

Out of curiousness,  what is the sampling rate on a GPS receiver? Is it enough to get a 1/2 sec accurate reading?

[kopfjäger]

I think Apple is about the only good thing that's come out of the USA

Que? 

[Monsterlover]

Here's what I use.

Garmin on a ram mount on the KTM



Works pretty good, and works well even in sunlight.

Fully gasketed and has survived torrential rain riding and works with gloves on.

It's a 2720 I think.  I got it for $180 about 5 years ago, refurbished.  They're probably $100 now, if that.

[He Man]

But what happened to the magic thing we were talking about? 

Out of curiousness,  what is the sampling rate on a GPS receiver? Is it enough to get a 1/2 sec accurate reading?

The ones posted were all either

5 times a second, or once every second or once every  seconds.