Javelin stamp and RF dimmers
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Well after alot of research I'm back.
So far the wireless and stamp dimming(PWM) end look good. The one
area that might be a problem is the lighting board to stamp interface.
The board uses a DMX protocol that runs at 250k. The suggestions so
far are to use an UART device to stamp combo then one of Parallaxs'
transmitters. The Javelin specs say that it has a UART onboard. Will
it be fast enough?
Ian Phillips
Shaw Festival
Ontario, Canada
So far the wireless and stamp dimming(PWM) end look good. The one
area that might be a problem is the lighting board to stamp interface.
The board uses a DMX protocol that runs at 250k. The suggestions so
far are to use an UART device to stamp combo then one of Parallaxs'
transmitters. The Javelin specs say that it has a UART onboard. Will
it be fast enough?
Ian Phillips
Shaw Festival
Ontario, Canada
Comments
Peripherals, so the upper end speed of the UART is 32K. You'll need a
hardware UART for your project if you want to control it with a BASIC Stamp
or a Javelin Stamp ... or for that matter, any other similar micro.
-- Jon Williams
-- Parallax
In a message dated 4/26/02 3:47:50 PM Central Daylight Time,
iphillips@s... writes:
> Well after alot of research I'm back.
> So far the wireless and stamp dimming(PWM) end look good. The one
> area that might be a problem is the lighting board to stamp interface.
> The board uses a DMX protocol that runs at 250k. The suggestions so
> far are to use an UART device to stamp combo then one of Parallaxs'
> transmitters. The Javelin specs say that it has a UART onboard. Will
>
[noparse][[/noparse]Non-text portions of this message have been removed]
the same question. One thing you might answer for me is how the UART
chip slows things down for the stamp. If it would help there is a
great description of how DMX works [url=at-http://www.dmx512-]at-http://www.dmx512-[/url]
online.com/packt.html-
Ian Phillips
- In basicstamps@y..., jonwms@a... wrote:
> The Javelin uses a time-slicing technique for its Virtual
(software)
> Peripherals, so the upper end speed of the UART is 32K. You'll
need a
> hardware UART for your project if you want to control it with a
BASIC Stamp
> or a Javelin Stamp ... or for that matter, any other similar micro.
>
> -- Jon Williams
> -- Parallax
>
> In a message dated 4/26/02 3:47:50 PM Central Daylight Time,
> iphillips@s... writes:
>
>
> > Well after alot of research I'm back.
> > So far the wireless and stamp dimming(PWM) end look good. The one
> > area that might be a problem is the lighting board to stamp
interface.
> > The board uses a DMX protocol that runs at 250k. The suggestions
so
> > far are to use an UART device to stamp combo then one of
Parallaxs'
> > transmitters. The Javelin specs say that it has a UART onboard.
Will
> >
>
>
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]