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xpd



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#270262 1-May-2020 12:20
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Whats a "cheap" solution for tracking speed of my RC car ?

 

I see a lot of people on YouTube have GPS speedometer units, but they seem to go for $150 each, so was looking for a cheap alternative. (Not willing to spend 1/3 of what I spent on the entire setup :) )

 

I do have a couple of spare old Android phones, however they seem to take time to acquire the GPS signal and give an accurate reading using a speedometer app - and usually by then Ive run out of "road" ;)

 

Any ideas/decent apps I could look at ? :)

 

TIA





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  #2474631 1-May-2020 13:10
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A 3g gps tracker might set you back $40 - $50.  The old 2g ones (ie if you're vodafone) are much cheaper, like a pet one which is battery as well.  And if you can get the resolution hight enough that might be usable.

 

Can't think of anything else....unless you can count the wheel revolutions





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  #2474632 1-May-2020 13:12
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Or if you just want a timed run to see top speed for a one off, mark out 100m or something and time it.

 

 





Previously known as psycik

OpenHAB: Gigabyte AMD A8 BrixOpenHAB with Aeotech ZWave Controller, Raspberry PI, Wemos D1 Mini, Zwave, Xiaomi Humidity and Temperature sensors and Bluetooth LE Sensors
Media:Chromecast v2, ATV4, Roku3, HDHomeRun Dual
Windows 10
Host (Plex Server/Crashplan): 2x2TB, 2x3TB, 1x4TB using DriveBender, Samsung 850 evo 512 GB SSD, Hyper-V Server with 1xW10, 1xW2k8, 2xUbuntu 16.04 LTS, Crashplan, NextPVR channel for Plex,NextPVR Metadata Agent and Scanner for Plex


 
 
 
 


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  #2474674 1-May-2020 13:22
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Android phones shouldn't take more than 10 seconds to get a signal... Suggest you get GPS Status and Toolbox, download A_GPS and leave it open to the sky for a good 10 minutes to get a good lock... once this is done. You should find much faster time (especially if you have wifi and gps turned on).





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