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Easy A/D converters? — Parallax Forums

Easy A/D converters?

ArchiverArchiver Posts: 46,084
edited 2003-08-24 15:06 in General Discussion
Hello!

What are some A/D converters that can be easily connected to the basic
stamp? I'm quite new with the basic stamp. In fact, I hadn't
realized that it didn't have built in A/D converters, as does the
OOPic. However, I'm willing to put in the extra work because my
initial tests with the basic stamp have been super and I love the
editor.

I'm looking for a very basic 8-bit A/D converter that doesn't need a
lot of external components. I need, um, I think it's called "4
channel"... One that can measure 4 analog signals.

Thanks a ton!
- Bret

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 00:20
    In a message dated 8/23/2003 4:16:21 PM Pacific Daylight Time,
    clone45@h... writes:
    Hello!

    What are some A/D converters that can be easily connected to the basic
    stamp? I'm quite new with the basic stamp. In fact, I hadn't
    realized that it didn't have built in A/D converters, as does the
    OOPic. However, I'm willing to put in the extra work because my
    initial tests with the basic stamp have been super and I love the
    editor.

    I'm looking for a very basic 8-bit A/D converter that doesn't need a
    lot of external components. I need, um, I think it's called "4
    channel"... One that can measure 4 analog signals.

    Thanks a ton!
    - Bret
    Go to www.maxim-ic.com

    There are literally hundreds of choices. Welcome to the stamp. Probably the
    easiest uP on the planet to use.


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 00:20
    In a message dated 8/23/2003 7:16:20 PM Eastern Standard Time,
    clone45@h... writes:


    > I'm looking for a very basic 8-bit A/D converter that doesn't need a
    > lot of external components. I need, um, I think it's called "4
    > channel"... One that can measure 4 analog signals.
    >
    >

    The TLC2543 12-bit 11-channel is very easy to use. Surprisingly, you will
    find that it is probably a lot cheaper than a 4-channel. Takes 4 pins - channel

    select, datain, dataout and clock.

    Sid Weaver
    W4EKQ
    Port Richey, FL


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 01:02
    I'm a little overwhelmed by the number of A/D converters offered by
    Maxim. Is there one that you've used before that you could recommend?

    --- In basicstamps@yahoogroups.com, smartdim@a... wrote:
    > In a message dated 8/23/2003 4:16:21 PM Pacific Daylight Time,
    > clone45@h... writes:
    > Hello!
    >
    > What are some A/D converters that can be easily connected to the
    basic
    > stamp? I'm quite new with the basic stamp. In fact, I hadn't
    > realized that it didn't have built in A/D converters, as does the
    > OOPic. However, I'm willing to put in the extra work because my
    > initial tests with the basic stamp have been super and I love the
    > editor.
    >
    > I'm looking for a very basic 8-bit A/D converter that doesn't need a
    > lot of external components. I need, um, I think it's called "4
    > channel"... One that can measure 4 analog signals.
    >
    > Thanks a ton!
    > - Bret
    > Go to www.maxim-ic.com
    >
    > There are literally hundreds of choices. Welcome to the stamp.
    Probably the
    > easiest uP on the planet to use.
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 01:04
    Thanks! I had noticed that the TLC2543 was recommended before in a
    previous post. I'll check out the data sheet tonight!

    Cheers!
    - Bret

    --- In basicstamps@yahoogroups.com, Newzed@a... wrote:
    > In a message dated 8/23/2003 7:16:20 PM Eastern Standard Time,
    > clone45@h... writes:
    >
    >
    > > I'm looking for a very basic 8-bit A/D converter that doesn't need
    a
    > > lot of external components. I need, um, I think it's called "4
    > > channel"... One that can measure 4 analog signals.
    > >
    > >
    >
    > The TLC2543 12-bit 11-channel is very easy to use. Surprisingly,
    you will
    > find that it is probably a lot cheaper than a 4-channel. Takes 4
    pins - channel
    > select, datain, dataout and clock.
    >
    > Sid Weaver
    > W4EKQ
    > Port Richey, FL
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 01:15
    At 11:14 PM 8/23/03 +0000, c45a6 wrote:

    >Hello!
    >
    >What are some A/D converters that can be easily connected to the basic
    >stamp? I'm quite new with the basic stamp. In fact, I hadn't
    >realized that it didn't have built in A/D converters, as does the
    >OOPic. However, I'm willing to put in the extra work because my
    >initial tests with the basic stamp have been super and I love the
    >editor.
    >
    >I'm looking for a very basic 8-bit A/D converter that doesn't need a
    >lot of external components. I need, um, I think it's called "4
    >channel"... One that can measure 4 analog signals.
    >
    >Thanks a ton!
    >- Bret

    Hi Bret -

    Here is a relatively simple 4-channel ADC from National which you should be
    able source quite easily:
    http://www.national.com/pf/AD/ADC0834.html

    Bruce Bates




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  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 01:37
    --- In basicstamps@yahoogroups.com, "c45a6" <clone45@h...> wrote:
    >
    > Hello!
    >
    > What are some A/D converters that can be easily connected to the
    basic
    > stamp? I'm quite new with the basic stamp. In fact, I hadn't
    > realized that it didn't have built in A/D converters, as does the
    > OOPic. However, I'm willing to put in the extra work because my
    > initial tests with the basic stamp have been super and I love the
    > editor.
    >
    > I'm looking for a very basic 8-bit A/D converter that doesn't need
    a
    > lot of external components. I need, um, I think it's called "4
    > channel"... One that can measure 4 analog signals.
    >
    > Thanks a ton!
    > - Bret


    Hi Bret,

    the TLC chip is a good bet as it is 11 channel and will offer all
    your ADC inputs needs and offer the excess pins as digital inputs if
    you want.

    Also, there are quite a few sites (Like Tracey's OWL site) that offer
    simple explanations of how to connect it and how to address it in
    software. That particular chip has a lot of people on here to help
    if you need it.

    Dave
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 02:20
    The ADC0831 will get you going and you can find lots of ready-to-run on
    our web site.

    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office


    Original Message
    From: c45a6 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=LMA1CmLAxheh4K-0piUqRx4v1xP7slMzwclJqoOdX2RVqc6Fn5ix8KrmsBmMgoolVTQAiJQioLzZECI]clone45@h...[/url
    Sent: Saturday, August 23, 2003 6:14 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Easy A/D converters?



    Hello!

    What are some A/D converters that can be easily connected to the basic
    stamp? I'm quite new with the basic stamp. In fact, I hadn't
    realized that it didn't have built in A/D converters, as does the
    OOPic. However, I'm willing to put in the extra work because my
    initial tests with the basic stamp have been super and I love the
    editor.

    I'm looking for a very basic 8-bit A/D converter that doesn't need a
    lot of external components. I need, um, I think it's called "4
    channel"... One that can measure 4 analog signals.

    Thanks a ton!
    - Bret


    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject
    and Body of the message will be ignored.


    Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/




    This message has been scanned by WebShield. Please report SPAM to
    abuse@p....
  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 02:46
    IIRC, the ADC0831 is not 4 channels. Just single.

    On Sat, 23 Aug 2003 18:20:06 -0700 "Jon Williams"
    <jwilliams@p...> writes:
    > The ADC0831 will get you going and you can find lots of ready-to-run
    > on our web site.
    >
    > -- Jon Williams
    > -- Applications Engineer, Parallax
    > -- Dallas Office
    >
    >
    Original Message
    > From: c45a6 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=J8p3ucTVCq8UyTChkfcrbE-UYRQn4UZVMjs1ebthu1UCec5HAoR2NZg0KRB6Q9Nd18Ir8Ee7_k-XUxw]clone45@h...[/url
    > Sent: Saturday, August 23, 2003 6:14 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Easy A/D converters?
    >
    > Hello!
    >
    > What are some A/D converters that can be easily connected to the
    > basic stamp? I'm quite new with the basic stamp. In fact, I hadn't
    > realized that it didn't have built in A/D converters, as does the
    > OOPic. However, I'm willing to put in the extra work because my
    > initial tests with the basic stamp have been super and I love the
    > editor.
    >
    > I'm looking for a very basic 8-bit A/D converter that doesn't need a
    >
    > lot of external components. I need, um, I think it's called "4
    > channel"... One that can measure 4 analog signals.
    >
    > Thanks a ton!
    > - Bret

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  • ArchiverArchiver Posts: 46,084
    edited 2003-08-24 15:06
    You want an 'SPI' interfaced device (Data and Clock,
    use the SHIFTIN/SHIFOUT cmds to interface).

    Parallax (and many others) sells the
    Maxim ADC0831 chip (single channel) (8-pins).
    They have interfacing instructions in their
    "Analog and Digital" course (download the manual).

    Having started using the BS2 in Jan '03, I
    sympathize with the huge amount of possible chips
    to be used, and the desire just to have one or two
    to begin with.


    --- In basicstamps@yahoogroups.com, "c45a6" <clone45@h...> wrote:
    >
    > I'm a little overwhelmed by the number of A/D converters offered by
    > Maxim. Is there one that you've used before that you could
    recommend?
    >
    > --- In basicstamps@yahoogroups.com, smartdim@a... wrote:
    > > In a message dated 8/23/2003 4:16:21 PM Pacific Daylight Time,
    > > clone45@h... writes:
    > > Hello!
    > >
    > > What are some A/D converters that can be easily connected to the
    > basic
    > > stamp? I'm quite new with the basic stamp. In fact, I hadn't
    > > realized that it didn't have built in A/D converters, as does the
    > > OOPic. However, I'm willing to put in the extra work because my
    > > initial tests with the basic stamp have been super and I love the
    > > editor.
    > >
    > > I'm looking for a very basic 8-bit A/D converter that doesn't
    need a
    > > lot of external components. I need, um, I think it's called "4
    > > channel"... One that can measure 4 analog signals.
    > >
    > > Thanks a ton!
    > > - Bret
    > > Go to www.maxim-ic.com
    > >
    > > There are literally hundreds of choices. Welcome to the stamp.
    > Probably the
    > > easiest uP on the planet to use.
    > >
    > >
    > > [noparse][[/noparse]Non-text portions of this message have been removed]
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