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On Jan 17, 2016 12:24 AM, "Greg D via aprssig" <<a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>> wrote:<br>
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> Hi folks,<br>
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> Picking up on a thread I started a while back... Not sure if this will lead to something permanent or not, but I tought I'd give it a try.<br>
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> I got access to the back of my car's in-dash unit, and the video input connector. It's meant for use with a back camera, which I currently don't have (though it's on the wish list...). Found a VGA to RCA adapter box, and fired up APRSIS32 which was loaded on a small laptop. Here's the result:<br>
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> <a href="http://home.wavecable.com/~ko6th/aprs_dash_display.jpg">http://home.wavecable.com/~ko6th/aprs_dash_display.jpg</a><br>
> <a href="http://home.wavecable.com/~ko6th/aprs_laptop.jpg">http://home.wavecable.com/~ko6th/aprs_laptop.jpg</a><br>
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> Given the difficulty, if not questionable legality, of controlling a GUI-based laptop while driving, I think the next steps need to include:<br>
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> 1. Replace the laptop and VGA adapter with a Raspberry Pi. VGA output is built-in, also much better power draw and small size. (The car is a sports car, so no room for anything bigger.)</p>
<p dir="ltr">I think you meant RCA is built in, right?</p>
<p dir="ltr">> 2. Replace APRSIS32 with YAAC (for Raspberry Pi compatiblity).<br>
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> 3. Probably still need a keyboard for full control while parked, but add some fixed key switches tied to keyboard shortcuts for the common stuff while driving. During the earlier exchange, Andrew figured it was a "simple" matter of a Java library to bridge the swtiches to keyboard shortcuts... Hope he's right.<br>
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> 4. The Pi will boot itself when the car turns on, but I need a way to automatically safely power down the Pi when I turn the car off. Any ideas on this?<br>
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A lot of vehicles don't shut the radio off immediately - will eventually time out - and many will shut off once you open the door. You could source the power from a source that doesn't shut off right away and buy yourself time to shut down gracefully.</p>
<p dir="ltr">Sounds like fun - my truck has a backup camera that I would not want to be without. :-)</p>
<p dir="ltr">Lee - K5DAT</p>