IR project with VCR

Archiver

Hi Stampologists,

I have a project to implement, using a Stamp to "control"
a VCR, via its IR port.
Can anyone point me to a URL that may have the comms
protocol standard that VCR's use. Also an IR Tx for
interface to the Stamp.
I simply wish to control the "record" function on
the VCR with the Stamp, depending if an input is
triggered, then start a timer for say 10 minutes
recording, then stop the VCR with a stop signal
from the Stamp.
Hope I am not re-inventing the wheel :-)

Jack Chomley
Australia

Archiver

hook a ir detector up to your scope
look at the signal for "record" or any other function
program stamp to reproduce that timing sequence
hook up ir emitter to pin on stamp


richard

---

Original Message

---

From: "Gary Chung" <gary.chung@d...>
To: <basicstamps@egroups.com>
Sent: Monday, August 14, 2000 10:28 AM
Subject: Re: [noparse][[/noparse]basicstamps] IR project with VCR


> Jack, if you got the answer, would appreciate if you could share it with
the
> list.
>
> Regards
> Gary
>
> DIY Electronic
> Website : http://www.diyelectronics.com
> Email : Gary.Chung@d...
>
> > Hi Stampologists,
> >
> > I have a project to implement, using a Stamp to "control"
> > a VCR, via its IR port.
> > Can anyone point me to a URL that may have the comms
> > protocol standard that VCR's use. Also an IR Tx for
> > interface to the Stamp.
> > I simply wish to control the "record" function on
> > the VCR with the Stamp, depending if an input is
> > triggered, then start a timer for say 10 minutes
> > recording, then stop the VCR with a stop signal
> > from the Stamp.
> > Hope I am not re-inventing the wheel :-)
> >
> > Jack Chomley
> > Australia
> >
> >
> >
> >
>
>
>
>

Archiver

Jack, if you got the answer, would appreciate if you could share it with the
list.

Regards
Gary

DIY Electronic
Website : http://www.diyelectronics.com
Email : Gary.Chung@d...

> Hi Stampologists,
>
> I have a project to implement, using a Stamp to "control"
> a VCR, via its IR port.
> Can anyone point me to a URL that may have the comms
> protocol standard that VCR's use. Also an IR Tx for
> interface to the Stamp.
> I simply wish to control the "record" function on
> the VCR with the Stamp, depending if an input is
> triggered, then start a timer for say 10 minutes
> recording, then stop the VCR with a stop signal
> from the Stamp.
> Hope I am not re-inventing the wheel :-)
>
> Jack Chomley
> Australia
>
>
>
>

Archiver

Don't know how relevant this is, but what you want to do can easily be
done with a palm pilot or other handheld. There are several programs out
there that use the IR functions on handhelds as intelligent, programmable
remotes with timers and such. You can even implement 'macro' buttons that
will attach several functions (even on different devices) to a single
button press. The best one for palm is called Omniremote. Let me know if
you're interested in this...

HTH, Duncan

Archiver

This might be way to simple to consider. Several years ago (pre-Stamp era)
I designed a poor man's time lapse video recorder. It was a box that took
the output of a passive motion detector and put a VCR in record mode for a
specified interval and then turn it off.
I just used the guts from on of the el cheapo universal remote controls, I
think it cost around $10US at the time. I wired a couple of FETs in
parallel with the record and stop switch contacts. You can use the Stamp
to control the FET gates directly.
It worked very well and with the multiple device universal remotes available
today, you could easily control any IR enabled appliance, from your VCR to
air conditioner, etc.
The box doesn't even have to be in the same room as the appliance. Just
remove the IRLEDs from the remote board and extend them to other rooms.
Many of the remotes use two LED's in parallel for high power, so you can
have at least as many of the remotely positioned IRLEDs
As you suggest, why reinvent the wheel?
Pat

> Hi Stampologists,
>
> I have a project to implement, using a Stamp to "control"
> a VCR, via its IR port.
> Can anyone point me to a URL that may have the comms
> protocol standard that VCR's use. Also an IR Tx for
> interface to the Stamp.
> I simply wish to control the "record" function on
> the VCR with the Stamp, depending if an input is
> triggered, then start a timer for say 10 minutes
> recording, then stop the VCR with a stop signal
> from the Stamp.
> Hope I am not re-inventing the wheel :-)
>
> Jack Chomley
> Australia
>
>
>
>
>