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Using the VTI SCP1000 Pressure Sensor and Stamps — Parallax Forums

Using the VTI SCP1000 Pressure Sensor and Stamps

JoeJoe Posts: 184
edited 2011-06-08 20:06 in BASIC Stamp
Hi,

Only to know how can I use the VTI SCP1000 Pressure Sensor
with basic stamp.

I found the code but I don't know how to join
it with a Basic Stamp.

Do you know if I have to add a volt. divider or something
like this ?

Thanks. Joe

Comments

  • dandreaedandreae Posts: 1,375
    edited 2010-08-12 12:49
    You can use a 1K resistor from the BASIC Stamp's 5v to the 3.3v line on the VTI sensor and you should be up and running.

    Dave
  • JoeJoe Posts: 184
    edited 2010-08-13 08:02
    OK

    I have attached a picture.
    Could you confirm please if I have to add the 1 K resistors
    like the picture?


    Thanks, Joe
    diagram.jpg
    800 x 369 - 48K
  • SlowpilotSlowpilot Posts: 3
    edited 2010-08-13 10:38
    Hi Joe!

    Thanks for posting the diagram. I had the same question. I bought a 5v - 3.3v board so I could power the SCP1000 from the Stamp board, but your diagram may just be the last piece of the puzzle.

    Have you tried this? Did it work?

    Again, many thanks!!!

    Slowpilot
  • SlowpilotSlowpilot Posts: 3
    edited 2010-08-13 11:14
    Hi again Joe,

    Looking at your diagram, I'm thinking you only need the 1K resistor on the power line to drop the 5v to 3.3v.

    ...but, I could be wrong! HA!

    Slowpilot
  • JoeJoe Posts: 184
    edited 2010-08-17 12:38
    Hi , Dave Andreae or other people from Parallax


    I have attached the same picture again in order to
    know if this is the way to add the resistors
    or if I have to change the resistors.

    Thanks, Joe
    diagram.jpg
    800 x 369 - 48K
  • JaimeJaime Posts: 16
    edited 2010-09-10 07:59
    Dear Sirs: Could you post where is the VTISCP1000 code for the Basic Stamp that you are talking about?

    Appreciate your kind response

    microwaveteach@hotmail.com
  • FranklinFranklin Posts: 4,747
    edited 2010-09-10 13:23
    Jaime, It does not appear anyone was talking about the software, just connecting the hardware. The datasheet and the parallax OBEX have some code but none of that is for the stamp. Perhaps someone has some though.
  • bmperreabmperrea Posts: 4
    edited 2011-02-21 08:53
    Hey Jaime,

    I just posted some basic stamp code for the SCP100 at this link:

    http://forums.parallax.com/showthread.php?122100-VTI-SCP1000-Pressure-Sensor&p=979025#post979025

    Brent
    bmperrea@cord.edu
  • markustermarkuster Posts: 184
    edited 2011-06-08 16:10
    Hi,

    Just to know if the people from Parallax read this posts.
    I want to use the VTI SCP1000 Pressure Sensor but I am not sure if the
    picture shown with 1K resistors is a safe way or not .

    I am not sure if the 1K resistor is the solution because at Parallax web site I
    read that the VTI SCP1000 sensor could be used with the propeller but nothing about B.Stamps.

    Could you help please?
  • FranklinFranklin Posts: 4,747
    edited 2011-06-08 20:06
    The scp1000 is a 3v device and does not take well to 5v but with the resistor you linit the current to a point where you won't blow the chip up.
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