[aprssig] Bluetooth integration

[scott at opentrac.org]

Has anyone out there experimented with Bluetooth/UART adapter chips?  I'm
still thinking about the possibility of building a bidirectional tracker
with integrated GPS that'd talk to a PDA via Bluetooth and pretend to be a
GPS itself.  The idea is to give SAR teams a PDA for mapping that'll do the
usual handheld GPS mapping functions, plus showing the locations of other
teams, allowing the teams to set waypoints to mark tracks and sign, and
allowing the command post to set waypoints indicating search assignments and
things.

I don't mind doing USB from scratch, but Bluetooth looks like it'd be too
much of a pain, especially when it's only UART functions you're after.

Scott
N1VG