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Visual Basic, DB9 pins — Parallax Forums

Visual Basic, DB9 pins

ArchiverArchiver Posts: 46,084
edited 2003-03-06 00:18 in General Discussion
Colleagues,

I want to use other pins on the DB9 connector (like RTS and DTR). How
can I drive them with (preferably) Visual Basic, or C++?

Thanks,
Nick

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-03-05 00:18
    Original Message
    From: "Nick Alexeev" <kender_a@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Tuesday, March 04, 2003 4:45 PM
    Subject: [noparse][[/noparse]basicstamps] Visual Basic, DB9 pins


    > Colleagues,
    >
    > I want to use other pins on the DB9 connector (like RTS and DTR). How
    > can I drive them with (preferably) Visual Basic, or C++?
    >
    > Thanks,
    > Nick

    Here's a VB project by Jared Hoylman showing how to use the DTR & RTS pins
    to control the Fire-Cracker serial RF transmitter module.

    http://www.rentron.com/FireCracker.htm


    Regards,

    -Bruce
    tech@r...
    http://www.rentron.com
  • ArchiverArchiver Posts: 46,084
    edited 2003-03-05 00:23
    Nick,

    In Visual basic use the DTREnable and RTSEnable properties of the
    MSComm control to set the DTR and RTS lines high or low. For example:

    MSComm1.DTREnable = True ' Set DTR High
    MSComm1.DTREnable = False ' Set DTR Low
    MSComm1.RTSEnable = True ' Set RTS High
    MSComm1.RTSEnable = False ' Set RTS Low

    The following link is to an article I wrote to control the X-10
    Firecracker using the DTR and RTS lines. It should serve as a good
    starting point.

    http://www.rentron.com/FireCracker.htm

    Hope this helps,
    jared Hoylman




    --- In basicstamps@yahoogroups.com, "Nick Alexeev" <kender_a@y...>
    wrote:
    > Colleagues,
    >
    > I want to use other pins on the DB9 connector (like RTS and DTR).
    How
    > can I drive them with (preferably) Visual Basic, or C++?
    >
    > Thanks,
    > Nick
  • ArchiverArchiver Posts: 46,084
    edited 2003-03-05 17:29
    Jared, dude, you have solved three problems for me at once!
    I've had a Firecracker module for some time, and was
    not able on the X10 site to find the communication docs,
    so could not program communication to it from VB -- your
    solution fixes that problem, plus can be easily adapted
    to allow the Stamp to drive it, plus had the link so
    I could find the X10 docs.

    Plus, I could have sworn the RTS and DTR pins were not
    individually controllable from VB -- you demonstrated
    they are. Thanks for publishing an excellent solution.

    --- In basicstamps@yahoogroups.com, "Jared Hoylman"
    <electrolinx@y...> wrote:
    > Nick,
    >
    > In Visual basic use the DTREnable and RTSEnable properties of the
    > MSComm control to set the DTR and RTS lines high or low. For
    example:
    >
    > MSComm1.DTREnable = True ' Set DTR High
    > MSComm1.DTREnable = False ' Set DTR Low
    > MSComm1.RTSEnable = True ' Set RTS High
    > MSComm1.RTSEnable = False ' Set RTS Low
    >
    > The following link is to an article I wrote to control the X-10
    > Firecracker using the DTR and RTS lines. It should serve as a good
    > starting point.
    >
    > http://www.rentron.com/FireCracker.htm
    >
    > Hope this helps,
    > jared Hoylman
    >
    >
    >
    >
    > --- In basicstamps@yahoogroups.com, "Nick Alexeev" <kender_a@y...>
    > wrote:
    > > Colleagues,
    > >
    > > I want to use other pins on the DB9 connector (like RTS and DTR).
    > How
    > > can I drive them with (preferably) Visual Basic, or C++?
    > >
    > > Thanks,
    > > Nick
  • ArchiverArchiver Posts: 46,084
    edited 2003-03-05 18:01
    There is already BS2 code for the Firecracker out there.
    firecrck.bs2 John L. Scarfone 7/31/99

    >
    > Jared, dude, you have solved three problems for me at once!
    > I've had a Firecracker module for some time, and was
    > not able on the X10 site to find the communication docs,
    > so could not program communication to it from VB -- your
    > solution fixes that problem, plus can be easily adapted
    > to allow the Stamp to drive it, plus had the link so
    > I could find the X10 docs.
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-03-06 00:18
    I also did a Stamp to Firecracker as a project of month. We used to have
    it posted on our Wiki (now defunct... Long story). But it has been
    mirrored in a few places:

    http://www.geocities.com/ido_bartana/basicstamp_firecracker.htm


    Al Williams
    AWC
    * Floating point A/D
    http://www.al-williams.com/awce/pak9.htm


    >
    Original Message
    > From: Mike DeMetz [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=eIbeHBsdeJxyLjMxvNIhHOzh2y2LWwWSR8VaH-vnoua5hHECuzKTvS33aPoSRYLTrlvlZOujBkN0nQ]miked@e...[/url
    > Sent: Wednesday, March 05, 2003 12:01 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Re: Visual Basic, DB9 pins
    >
    >
    > There is already BS2 code for the Firecracker out there.
    > firecrck.bs2 John L. Scarfone 7/31/99
    >
    > >
    > > Jared, dude, you have solved three problems for me at once!
    > I've had a
    > > Firecracker module for some time, and was not able on the
    > X10 site to
    > > find the communication docs, so could not program
    > communication to it
    > > from VB -- your solution fixes that problem, plus can be easily
    > > adapted to allow the Stamp to drive it, plus had the link so
    > > I could find the X10 docs.
    > >
    >
    >
    >
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