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> I need to read resistance! HELP!! PLEASE QUICK

ArchiverArchiver Posts: 46,084
edited 2003-04-27 19:52 in General Discussion
This is the same code that i have and it is still not doing anything
execpt for showing 1 and 0. the average resistance is 4k ohms, 5k is
my guess where the number becomes 0



--- In basicstamps@yahoogroups.com, jonwms@a... wrote:
> Assuming you're using the recommended circuit, this code will
measure a
> display your RCTIME value:
>
> RCpin CON 0
>
> rcVal VAR Word
>
> Main:
> HIGH RCpin
> PAUSE 1
> RCTIME RCpin, 1, rcVal
> DEBUG Home, DEC5 rcVal
> PAUSE 100
> GOTO Main
>
>
> -- Jon Williams
> -- Parallax
>
>
> In a message dated 4/27/2003 11:40:51 AM Central Standard Time,
> vea@v... writes:
>
> > I need to be able to read resistance in the debug screen. i am
using
> > a 10k thermisistor and all i see in the screen i a 1. When in
actual
> > it about 9k. i am using rctime. i also have a photocell with a
small
> > resistor which does the same as the thermistor, and the usual
reading
> > is 4k in normal light, and all i see is numbers 1 and 0 for that.
> > Please help as soon as you can please! i need to finish soon.
>
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-04-27 18:47
    Then check your connection. Since the circuit is simple, I'd suggest
    rebuilding (especially if on a breadboard) since unseen bad connections are
    often blamed for software troubles. Trust me, I know this from experience.

    -- Jon Williams
    -- Parallax

    In a message dated 4/27/2003 12:35:56 PM Central Standard Time,
    vea@v... writes:

    > This is the same code that i have and it is still not doing anything
    > execpt for showing 1 and 0. the average resistance is 4k ohms, 5k is
    > my guess where the number becomes 0



    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-04-27 18:54
    oh, i forgot to say, sometimes, which is like 1 out of 100 runs, i
    see numbers go like up to 6000 but then it goes back to 1. i have
    tried that and also i have a bs2 and b.o.e. bread board. also i would
    like to know if i can do a if x > 5000 - 8000 then run1..? and also
    about the 10k thermisitor if i can read it the same in the debug
    screen like the photocell. this will help me alot if i can figure out
    the problem soon: why i just see 1 or 0?

    waiting to recieve more info...


    --- In basicstamps@yahoogroups.com, jonwms@a... wrote:
    > Then check your connection. Since the circuit is simple, I'd
    suggest
    > rebuilding (especially if on a breadboard) since unseen bad
    connections are
    > often blamed for software troubles. Trust me, I know this from
    experience.
    >
    > -- Jon Williams
    > -- Parallax
    >
    > In a message dated 4/27/2003 12:35:56 PM Central Standard Time,
    > vea@v... writes:
    >
    > > This is the same code that i have and it is still not doing
    anything
    > > execpt for showing 1 and 0. the average resistance is 4k ohms, 5k
    is
    > > my guess where the number becomes 0
    >
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-04-27 19:24
    Again ... check your connections and I would suggest changing your capacitor.


    In PBASIC you can jump to an address based on a condition with IF-THEN.

    -- Jon Williams
    -- Parallax


    In a message dated 4/27/2003 12:55:04 PM Central Standard Time,
    vea@v... writes:

    > oh, i forgot to say, sometimes, which is like 1 out of 100 runs, i
    > see numbers go like up to 6000 but then it goes back to 1. i have
    > tried that and also i have a bs2 and b.o.e. bread board. also i would
    > like to know if i can do a if x >5000 - 8000 then run1..? and also
    > about the 10k thermisitor if i can read it the same in the debug
    > screen like the photocell. this will help me alot if i can figure out
    > the problem soon: why i just see 1 or 0?
    >
    > waiting to recieve more info...



    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-04-27 19:52
    And if you find a bad hole on your breadboard, mark it with a permanent
    marker so you won't get burned twice...

    Original Message

    > Then check your connection. Since the circuit is simple, I'd suggest
    > rebuilding (especially if on a breadboard) since unseen bad connections
    are
    > often blamed for software troubles. Trust me, I know this from
    experience.
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