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Racechrono - Android

gps lap timer android phone

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#41 Sticky

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Posted 24 May 2014 - 08:45 AM

Racechrono finally went Pro yesterday and now has built-in video recording, dash/gauge overlays and OBD support. I've had a beta version for a while and it seems to work very well (though I've only tested it with the Audi which doesn't barf when asked to output OBD data unlike the NA's ecu). 

What camera can you use for the video or do you have to record separately and overlay?

#42 Jason

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Posted 24 May 2014 - 09:17 AM

It does everything in one device for you. So once recorded you can view everything at the same time. Only issue I can see at the moment is this is not yet a solution to uploading to YouTube etc as the video recorded is raw is no overlays, which is better from a flexibility point of view anyway. I have a gopro so prob won't use video feature as phone battery probably won't last like the gopro will, plus need my phone to receive calls... My NA does not barf with the OBD connected..

#43 Jason

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Posted 24 May 2014 - 09:24 AM

Correction his video says you can export directly to YouTube

#44 Sticky

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Posted 24 May 2014 - 09:36 AM

It does everything in one device for you. So once recorded you can view everything at the same time. ..

But I'll need an android device with a good enough camera in order to get the best out of it? My phone camera is rubbish :(

#45 techieboy

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Posted 24 May 2014 - 09:50 AM

But I'll need an android device with a good enough camera in order to get the best out of it? My phone camera is rubbish :(

 

Yup, afraid so. Time to get something vaguely modern. The application is quite heavy (though not as bad as Harrys Lap Timer is on Android) on the phone, especially if you're using external GPS and OBD for data acquisition. Chances are, if you had something from the last couple of years it would have a plenty good enough camera for HD video of one form or another. You can probably pick up a capable enough PAYG mobile from any of the mobile networks for <£100.

 

My NA does not barf with the OBD connected..

 

I bet it will at some point. I don't bother with OBD at all any more as I have a proper datalogger but even just trying to log throttle position via OBD and nothing else at all, I'd get the occasional misfire as the ECU chokes.



#46 Sticky

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Posted 24 May 2014 - 10:21 AM

But I'll need an android device with a good enough camera in order to get the best out of it? My phone camera is rubbish :(

  Yup, afraid so. Time to get something vaguely modern. The application is quite heavy (though not as bad as Harrys Lap Timer is on Android) on the phone, especially if you're using external GPS and OBD for data acquisition. Chances are, if you had something from the last couple of years it would have a plenty good enough camera for HD video of one form or another. You can probably pick up a capable enough PAYG mobile from any of the mobile networks for <£100.  

My NA does not barf with the OBD connected..

  I bet it will at some point. I don't bother with OBD at all any more as I have a proper datalogger but even just trying to log throttle position via OBD and nothing else at all, I'd get the occasional misfire as the ECU chokes.
Don't think the alpha ecu for the iTBs will support the data input :( Video and timing will be better than what I have at the mo.

#47 techieboy

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Posted 24 May 2014 - 10:28 AM

Indeed, it won't. With RaceChrono or Harry's Lap Timer you'll just get video, lat/long G, position and a speedo. :(

 

You need my old Performance Box and Micro Input Module (MIM supports hard wired sensors and an RPM pickup) for some data logging. 



#48 Sticky

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Posted 24 May 2014 - 11:50 AM

Indeed, it won't. With RaceChrono or Harry's Lap Timer you'll just get video, lat/long G, position and a speedo. :(   You need my old Performance Box and Micro Input Module (MIM supports hard wired sensors and an RPM pickup) for some data logging. 

Are you selling?



#49 Kieran McC

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Posted 24 May 2014 - 03:16 PM

I use the new Harrys lap timer petrol head edition for andriod, I use a Dual gps blue tooth with it for more accurate logging ,They seem to work quite well as does the video .

#50 turbotoaster

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Posted 24 May 2014 - 10:09 PM

kieran(or anybody else), can you direct me to where to get a external gps receiver from, im running a samsung galaxy s3 and would like to record as much reasonably accurate data as possible from the first time my race car is on track, i tried looking on ebay but I dont really know what im looking for



#51 techieboy

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Posted 24 May 2014 - 10:22 PM

Cheap and sometimes flakey 10Hz option (think of it more like 5Hz) http://www.amazon.co...r/dp/B005GDIPMG Much better stable 10Hz option http://www.expansys....gps-160-252679/ Stupidly expensive 20hz option http://www.vboxmotor...ters/vbox-sport

#52 Sticky

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Posted 25 May 2014 - 07:37 AM

Indeed, it won't. With RaceChrono or Harry's Lap Timer you'll just get video, position and a speedo. :(   You need my old Performance Box and Micro Input Module (MIM supports hard wired sensors and an RPM pickup) for some data logging. 

Are you selling?
Soooo................?

#53 Kieran McC

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Posted 25 May 2014 - 08:35 AM

kieran(or anybody else), can you direct me to where to get a external gps receiver from, im running a samsung galaxy s3 and would like to record as much reasonably accurate data as possible from the first time my race car is on track, i tried looking on ebay but I dont really know what im looking for

 

I use mine with a Samsung Galaxy S4 The Dual is the one Harrys lap timer recommended so I  went with that . Dual do two options one for £90 or the newer version for £130 ish . Amazon seem as cheap as most places.  



#54 techieboy

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Posted 25 May 2014 - 08:46 AM

Dual do two options one for £90 or the newer version for £130 ish . Amazon seem as cheap as most places.

The Dual XGPS160 is the new one and is what I linked to above at £92 from Expansys. You got mugged. :lol:

#55 techieboy

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Posted 25 May 2014 - 08:49 AM

Are you selling?


Soooo................?

Missed that. You probably wouldn't want it as it's bit beaten up from the way I mounted it, inside the dash.

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#56 Kieran McC

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Posted 25 May 2014 - 10:18 AM

Dual do two options one for £90 or the newer version for £130 ish . Amazon seem as cheap as most places.

The Dual XGPS160 is the new one and is what I linked to above at £92 from Expansys. You got mugged. :lol:
I did even than that I have one on long term loan FOC , My mate iis working on a contract abroad,I tried to get the car as well but no joy there.LoL

Edited by kieranmcc, 25 May 2014 - 10:19 AM.


#57 Sticky

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Posted 25 May 2014 - 10:58 AM

Are you selling? Soooo................?

Missed that. You probably wouldn't want it as it's bit beaten up from the way I mounted it, inside the dash. ]
Not too bothered about looks.

#58 WrightStuff

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Posted 03 June 2014 - 11:46 AM

Am I right in thinking that, purely for lap time purposes, a phones built in GPS (Sammy S3) would be reasonably accurate enough ?

Not really bothered about analysing my line, just the time difference lap on lap.

 



#59 techieboy

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Posted 03 June 2014 - 11:53 AM

As long as your happy with +/-1 second accuracy (and probably a bit better than that with some software interpolation), the built-in GPS is fine, as long as you can mount it somewhere that gets a good reliable GPS signal.



#60 WrightStuff

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Posted 03 June 2014 - 12:03 PM

As long as your happy with +/-1 second accuracy (and probably a bit better than that with some software interpolation), the built-in GPS is fine, as long as you can mount it somewhere that gets a good reliable GPS signal.

 

In my pocket ?  :o

I have 2 roundabouts next to each other connected by a short straight where I live I might go out later and do some testing  :D







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