pics and bs2sx
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hi gang!
i'n new to this list, so please bear with me in my ignorance.
im a parsons design and tech grad student doing my thesis. for this project my
plan
is to create a collaborative musical interface thats gonna involve three users
interacting with infrared proximity sensors.
each one of this sensor pairs is hooked up to a 16F876 PIC chip, which in turn
talks
to a master BS2SX basic stamp. so the deal is i have 3 of these PIC chips
talking to a
queen BS2SX.
i dont know of anyone who has made PICs talk to Basic Stamps. I'm doing this
because stamps are just too expensive to have 4 of them (3 slaves, 1 master). I
dont
know what kind of problems to expect. baud rate? any kind of data conversion
issues?
any help with this, or any advice, or any links will earn u all my love for
eternity and
your name in the acknowledgment credits of this grand endeavor.
thanks a lot,
federico
i'n new to this list, so please bear with me in my ignorance.
im a parsons design and tech grad student doing my thesis. for this project my
plan
is to create a collaborative musical interface thats gonna involve three users
interacting with infrared proximity sensors.
each one of this sensor pairs is hooked up to a 16F876 PIC chip, which in turn
talks
to a master BS2SX basic stamp. so the deal is i have 3 of these PIC chips
talking to a
queen BS2SX.
i dont know of anyone who has made PICs talk to Basic Stamps. I'm doing this
because stamps are just too expensive to have 4 of them (3 slaves, 1 master). I
dont
know what kind of problems to expect. baud rate? any kind of data conversion
issues?
any help with this, or any advice, or any links will earn u all my love for
eternity and
your name in the acknowledgment credits of this grand endeavor.
thanks a lot,
federico
Comments
ikki9@h... writes:
> i dont know of anyone who has made PICs talk to Basic Stamps. I'm doing
> this
> because stamps are just too expensive to have 4 of them (3 slaves, 1
> master). I dont
> know what kind of problems to expect. baud rate? any kind of data conversion
> issues?
>
There is no problem with PICs talking to Stamps and vice versa. Same baud.
same protocol except Stamp uses serout/serin and PIC uses serout2/serin2.
I have done this many times.
Have at it.
Sid Weaver
W4EKQ
Port Richey, FL
[noparse][[/noparse]Non-text portions of this message have been removed]
installations, then going with the PIC, and
purchasing some kind of development system for
it, is the way to go.
If you're only making one of these, then it
will really be cheaper to go ahead and buy
the Stamps. Any good development system
(assembler, Basic or C, target/programming
board) is going to cost around $350.00
Another possibility is the Ubicom SX processor.
Parallax sells a very nice kit for this,
including board, programming key, and software,
for $230 ($180 on sale).
The price per processor is $8.00, and the
performance is awsome at 50 MIPs.
--- In basicstamps@yahoogroups.com, "ikki9_2000" <ikki9@h...> wrote:
> hi gang!
> i'n new to this list, so please bear with me in my ignorance.
>
> im a parsons design and tech grad student doing my thesis. for
this project my plan
> is to create a collaborative musical interface thats gonna involve
three users
> interacting with infrared proximity sensors.
>
> each one of this sensor pairs is hooked up to a 16F876 PIC chip,
which in turn talks
> to a master BS2SX basic stamp. so the deal is i have 3 of these PIC
chips talking to a
> queen BS2SX.
>
> i dont know of anyone who has made PICs talk to Basic Stamps. I'm
doing this
> because stamps are just too expensive to have 4 of them (3 slaves,
1 master). I dont
> know what kind of problems to expect. baud rate? any kind of data
conversion issues?
>
> any help with this, or any advice, or any links will earn u all my
love for eternity and
> your name in the acknowledgment credits of this grand endeavor.
>
> thanks a lot,
> federico
expecting it. There are no serial input buffers on the Stamp. What
you can do is have the Stamp periodically "ask" the PICs if they have
data. The PIC then always responds - data or not - so the Stamp can
quickly proceed top its other tasks.
The 16F876 has a serial input buffer so there is no problem in that
direction.
Harry
Stamp Robotics to the next level
www.bluebelldesign.com
--- In basicstamps@yahoogroups.com, "ikki9_2000" <ikki9@h...> wrote:
> hi gang!
> i'n new to this list, so please bear with me in my ignorance.
>
> im a parsons design and tech grad student doing my thesis. for
this project my plan
> is to create a collaborative musical interface thats gonna involve
three users
> interacting with infrared proximity sensors.
>
> each one of this sensor pairs is hooked up to a 16F876 PIC chip,
which in turn talks
> to a master BS2SX basic stamp. so the deal is i have 3 of these PIC
chips talking to a
> queen BS2SX.
>
> i dont know of anyone who has made PICs talk to Basic Stamps. I'm
doing this
> because stamps are just too expensive to have 4 of them (3 slaves,
1 master). I dont
> know what kind of problems to expect. baud rate? any kind of data
conversion issues?
>
> any help with this, or any advice, or any links will earn u all my
love for eternity and
> your name in the acknowledgment credits of this grand endeavor.
>
> thanks a lot,
> federico
<harry_w_lewis@h...> wrote:
> A key issue is not to just send data to a BASIC Stamp that is not
> expecting it. There are no serial input buffers on the Stamp. What
> you can do is have the Stamp periodically "ask" the PICs if they
have
> data. The PIC then always responds - data or not - so the Stamp can
> quickly proceed top its other tasks.
>
> The 16F876 has a serial input buffer so there is no problem in that
> direction.
well thought. seems a single common pin that any external unit can
flag would send the Stamp into an interogate mode and communicate if
and when there is something out there to get.
Dave