You’ve got OnStar enabled GM vehicle and don’t use it? How about we told you that you could hack into to GM’s controller area network – which they call GMLAN – and make use of the GPS data?


Yeah we know – a simple USB GPS receiver is cheap and is easy to use; but who wants to do that when you can pull your car apart and access what’s already yours? See this as a way you sticking it to the man!

sprintf(nmea,”%u,N,%03u%02u.”,latminsint,longdeg,longminchar);
printf(“%s”,nmea);
for(k=0;k<8;k++)
{
checksum = checksum ^ nmea[k];
} //end for

If any part of this makes any sense to you follow this link to hackaday and get started!

 

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