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iPhone app: GTech measures speed (Km/h, mph), acceleration (0-100Km) etc Check it out here it is in greek: http://www.iphonehellas.gr/909/iphon...-iphonehellas/ This is the source: http://promentor.no/demo . You have to have Jiggy
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  1. #1
    My iPhone is a Part of Me iBlade's Avatar
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    Default GTech for the iPhone it's here!
    iPhone app: GTech measures speed (Km/h, mph), acceleration (0-100Km) etc
    Check it out here it is in greek:
    http://www.iphonehellas.gr/909/iphon...-iphonehellas/
    This is the source: http://promentor.no/demo.
    You have to have Jiggy Runtime installed first.
    I have not tried it yet. Here it is plus screenshots. Enjoy
    Attached Thumbnails Attached Thumbnails GTech for the iPhone it's here!-gtech.png   GTech for the iPhone it's here!-gtech_5.png  
    Attached Files Attached Files
    Last edited by iBlade; 04-30-2008 at 01:00 PM.
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    Livin the iPhone Life laz305's Avatar
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    can ya tell us in english what this does plz? that link is in another language.

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    Yeah man, an english translation please
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    My iPhone is a Part of Me iBlade's Avatar
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    Yo man I just found it, and passing it along. I do not speak greek. GTech is normaly a device for cars to measure acceleration and g-forces. And this is a app for the phone using the built in accelerometer.
    Last edited by iBlade; 04-30-2008 at 12:22 PM.
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    My iPhone is a Part of Me stocis's Avatar
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    i do..

    GTech is an app made by irafaS that can measure speed (Km/h mph) but as well acceleration ( 0 - 100Km) of a moving vehicle and give direct results to the iphone screen.

    This is made using iPhone's accelerometer

    In order to install GTech:

    Add this source to Installer: http://promentor.no/demo.
    *(Jiggy Runtime from Devolopment category should be installed first)
    Last edited by stocis; 04-30-2008 at 01:18 PM.
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    My iPhone is a Part of Me iBlade's Avatar
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    Thanks Stocis.
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    kool concept, but not working porperly for me.
    Getting negative KM's and low #'s, even when stopped my KM's seem to increase this is on 1.1.2 firmware

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    My iPhone is a Part of Me iBlade's Avatar
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    Quote Originally Posted by theguyz View Post
    kool concept, but not working porperly for me.
    Getting negative KM's and low #'s, even when stopped my KM's seem to increase this is on 1.1.2 firmware
    I will try it tomorrow. There is also an app called GForce, will try that too.
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    is this really possible, i mean for it to be able to tell speed?.. i know it can sense, up down and etc, but speed

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    Green Apple
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    i downloaded it but then u get like a broken app image and it doesnt open and the permissions are at 0755! any help?
    iPhonehacker123- please thank me

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    Developer NetMage's Avatar
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    It is theoretically possible.

    Using the accelerometer, you can measure acceleration if the iphone is horizontal (maybe in any orientation if you go straight for the low-level stuff). Then, you just integrate acceleration to get speed.
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    I doubt it'll measure the speed at which, for example, a car is moving when the iphone is in the car. However, it'll measure the speed of how fast you can move the iphone in your hand (i.e. waive it left to right). It converts an acceleration into "speed", but the acceleration is just of the device. Even if you mounted it on the hood of your car, i'm not sure it'll give you any acurate speed. Though, this is just my opinion based on what an accelerometer is. I have not tried it myself.

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    lws
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    Since the sensor isn't able to distinct which direction the acceleration has got, it's impossible to make it realise that you actually getting slower and not faster when braking.
    All those attempts to use this accelerometer as a speed measurement tool are bound to fail, sorry guys. It's just measuring the acceleration that is also known as gravity, to tell the device where it is facing to. It's impossible to register any movement other than tilting or dropping/lifting.

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    That's not at all true. G forces come in both positive and negative dimensions. By measuring the change, you can determine both acceleration and deceleration.

    I've used an accelerometer-based datalogger for cars before, they work on exactly the same principle as this software.

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    Will there be a 2.0 port?
    I wanted to code the same thing but found yours.

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    Quote Originally Posted by lws View Post
    Since the sensor isn't able to distinct which direction the acceleration has got, it's impossible to make it realise that you actually getting slower and not faster when braking.
    All those attempts to use this accelerometer as a speed measurement tool are bound to fail, sorry guys. It's just measuring the acceleration that is also known as gravity, to tell the device where it is facing to. It's impossible to register any movement other than tilting or dropping/lifting.
    You are so ******* full of fail. If you've even used any force meter application for the iPhone, you'd realise that the accelerometer can sense in two directions on each axis, totalling 6 directions. It is possible to measure the speed as an integral of acceleration, but this acceleration must obviously be from a standstill, otherwise the speed calculated would be in addition to the baseline speed.

    Try harder next time, troll.

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    And if you have an iPhone 3G you can use the GPS for measuring the speed for an even greater GTech on iPhone experience.
    So where is the source for a 2.0 migration?
    The original url can't be accessed any more.

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