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[on:]

Im working on a simple computer for my mitsubishi pajero gen1
I want to have speed monitoring on a lcd screen.
I know there is a pulsesignal from the speedo, but dont know if its possible to use this with my arduino, or how to do it.

So I was thinking to put a GPS module to it to get speed. Then I also can get lat/long and altitude.

Any tips of a cheep and easy to use gps module?
Best if it has external antenna, as my dashboard is metal and arduino is placed under it.
thanks!

[Reply #1 on:]

Lady Ada has a nice GPS module that's 5V compatible and that supports external active antenna:

https://www.adafruit.com/products/746
https://www.adafruit.com/products/960

Don't know if its the cheapest (and you'll also need an adapter cable), but Lady Ada chooses good products in my experience.

[Reply #2 on:]

thank you;)
that one is perfect!

[Reply #3 on:]

@h_vestbo

Just wonder if below one meets your demand as well, they are cheaper than the above mentioned but from China.

http://imall.iteadstudio.com/im120417017.html

http://imall.iteadstudio.com/im120717003.html

Regards,

Wendy

[Reply #4 on:]

I got the gps unit working with an arduino mega;)
But it gives me coordinates like this: 5936.681N, 547.789E

Easy way to get 59.611344,5.796477 ?

[Reply #5 on:]

Divide by 60? (plus appropriate powers of ten)

[Reply #6 on:]

how do I do that i arduino?

[Reply #7 on:]

But it gives me coordinates like this: 5936.681N, 547.789E

Easy way to get 59.611344,5.796477 ?

Well, set out in long-hand:
5936.681 * 1000 = 5936681
5936681 / 100000 = 59
5936681 % 100000 = 36681
36681 / 60000 = 0.61135

[Reply #8 on:]

thank you;)

[Reply #9 on:]

still working on this.. feel kinda noob, and well I guess I still am:P

anyway, have tried to calculate this in arduino but dont know what variables to use etc..

Is this simple to make for anyone wanting to help me?

[Reply #10 on:]

Have you tried using the TinyGPS Library.

I have attached it for your convenience


Cheers Pete.

[Reply #11 on:]

Thanks..
But I figured it out;)