Need Help w/ Polaroid 6500 sonar to BS2?

Archiver

Anyone with information attaching the sonar device to the BS2...
I want to make sure that my curcuit is correct. I have attached as
follows from the 9-pin connection of the sonar to the BS2... Pin-1
to Gnd-23, Pin-9(+5) to Pin 20 (+5), Pin-7(Echo) to Pin-15, and
Pin-4 (Init) to Pin-14. Stamp and programming seem to be
working fine yet my debug readings are constant...
22,22,22,22,403... repeat. If you have any knowlegde or
experience it would be much appreciated.

MH

Archiver

At 05:19 AM 4/12/2002 +0000, you wrote:
>Anyone with information attaching the sonar device to the BS2...
>I want to make sure that my curcuit is correct. I have attached as
>follows from the 9-pin connection of the sonar to the BS2... Pin-1
>to Gnd-23, Pin-9(+5) to Pin 20 (+5), Pin-7(Echo) to Pin-15, and
>Pin-4 (Init) to Pin-14. Stamp and programming seem to be
>working fine yet my debug readings are constant...
>22,22,22,22,403... repeat. If you have any knowlegde or
>experience it would be much appreciated.
>
>MH
MH -

A copy of your program would be most helpful in diagnosing the problem.
Please send it as
in-line text, as this list does not permit attachments.

Regards,

Bruce Bates

Archiver

Here is the program and thanks for the time...

Ml


TIMEOFFLIGHT var word
DISTANCE var word
ECHO con 15
INIT con 14
SETTLETIME con 1
CYCLE_DELAY con 300

loop:

high INIT

pause SETTLETIME

rctime ECHO, 0, TIMEOFFLIGHT

gosub ECHORECEIVED

low INIT

pause CYCLE_DELAY

goto loop:

ECHORECEIVED:

DISTANCE + TIMEOFFLIGHT * 7 / 200 +22

debug dec? DISTANCE

return



--- In basicstamps@y..., Bruce Bates <bvbates@u...> wrote:
> At 05:19 AM 4/12/2002 +0000, you wrote:
> >Anyone with information attaching the sonar device to the BS2...
> >I want to make sure that my curcuit is correct. I have attached as
> >follows from the 9-pin connection of the sonar to the BS2... Pin-1
> >to Gnd-23, Pin-9(+5) to Pin 20 (+5), Pin-7(Echo) to Pin-15, and
> >Pin-4 (Init) to Pin-14. Stamp and programming seem to be
> >working fine yet my debug readings are constant...
> >22,22,22,22,403... repeat. If you have any knowlegde or
> >experience it would be much appreciated.
> >
> >MH
> MH -
>
> A copy of your program would be most helpful in diagnosing the
problem.
> Please send it as
> in-line text, as this list does not permit attachments.
>
> Regards,
>
> Bruce Bates