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Hi Andrew,<br>
<br>
SD cards have a speed rating, which I presume would affect the read
and/or write performance you saw. What sort of pedigree did the SD
cards you used have?<br>
<br>
I'm still thinking of connecting a Pi to the Video-in on my car's
audio/nav unit (at a whopping 640x480 resolution) and doing an Rx
APRS display that way. Could also connect a USB web-cam to the Pi
for a back-up camera, etc., etc. Once you have a computer on board,
the sky is the limit.<br>
<br>
Greg KO6TH<br>
<br>
<br>
<div class="moz-cite-prefix">Andrew P. via aprssig wrote:<br>
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<div dir="ltr">I hate to bad-mouth my own product, but the Pi's
disk storage (on an SD card) is just too slow for map rendering
in YAAC on a mobile station (it is up to barely tolerable on a
Pi B 2). I've accelerated the rendering code in YAAC about as
far as I can, and on a Pi the load is now mostly reading the
disk files of mapping data, rather than the actual rendering. I
need to conduct some experiments with USB memory sticks to see
if they are any faster than SD cards on the Pi as a storage
device for YAAC map data. And I've looked at those 7" LCD
screens they have for the Pi; nice idea, but how do you
scotch-tape and chewing-gum the Pi to one of those screens so it
will hold together in the mobile environment?<br>
<br>
Andrew, KA2DDO<br>
author of YAAC ("Yet Another APRS Client")<br>
<a moz-do-not-send="true"
href="http://www.ka2ddo.org/ka2ddo/YAAC.html">http://www.ka2ddo.org/ka2ddo/YAAC.html</a><br>
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