Isnt Light and radio (or RF) both electromagnetic radiation, one
visible, one not.?

Justin



On Feb 9, 2008 7:03 AM, Spehro Pefhany <speff@interlog.com> wrote:
> Quoting Jinx <joecolquitt@clear.net.nz>:
>
> >> > http://www.pyroelectro.com/projects/ir_radar/index.html
> >>
> >> Infrared distance sensor, no "radar" at all.  :(
> >
> > I think "radar" suits it. The sensor is swept by a servo and the
> > result is position and distance. infra-red radar. Possibly iRadar
> > (don't tell Jobs)
>
> radar = *ra*dio *d*etection *a*nd *r*anging
>
> .... but there's no radio, eh?
>
> lidar = *li*ght *d*etection *a*nd *r*anging
>
> >
> > Could do with a re-design though. 40 LEDs, PIR sensor, PIC,
> > logic, 7805 and motor runing on a ..... 9V battery. I want to be
> > that man's battery supplier ;-)
>
> Lots of IR diode current too, with no series resistors and 5V supply.
>
> Best regards,
> Spehro Pefhany
> --
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