Re: LED DMX512 controller?

[Marc_F_Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Thu, 21 Dec 2006 09:46:15 -0500, Marc_F_Hult
<MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote in message
<2e4lo290evcc5di9tu7sud743861lmbmfe@xxxxxxx>:

>On 20 Dec 2006 16:26:01 -0800, "gypsy.calling@xxxxxxxxxxxxxx"
><gypsy.calling@xxxxxxxxxxxxxx> wrote in message
><1166660761.299238.302160@xxxxxxxxxxxxxxxxxxxxxxxxxxx>:
>
>>
>>Thanks you all for your input, the open source enttec solution sounds a
>>good starting point and appears to have solid documentation and the
>>hardware is available in the UK, forgot to mention im in the UK so
>>needed something local as Xmas is but a few days away!
>>
>>Thanks again and Merry Xmas to all!
>
>I suggested the Enttec open soure for the price and the other reasons you
>cite. That said, you might want to review the issues that this simple
US$55
>device has. It  consists in  a FT232BM USB to RS-232 ,  SP485CN RS-485
>driver and  93C46 serial eprom chips.
>
>The PC itself generates the DMX signal which can lead to flickering with
>some devices/lights.
>
>More sophisticated  DMX512 interfaces have microcontrollers that generate
>the signal independednt of the PC timing.
>
>But who knows, maybe yet more twinkling and flickering lights would add to
>the holiday spirit ;-)
>
>... Marc
>Marc_F_Hult
>www.ECOntrol.org

Since the OP is in UK, here's a link to the UK Free DMX Community Forum.

http://www.nextec.co.uk/opendmx.htm

They have free programs, drivers, code, help with coding, and bare pcb's,
complete kits, and fully-built Version 2 interfaces  based on a USM2 module
which carries the  FT232BL  chip.

I kinda like this UK company's USB DMX Cable 5-Pin
commercial product which is built entirely inside a proper 5-pin XLR
connector (not isolated and output-only, though).

http://www.dj-online.co.uk/acatalog/Afterglow_PX_DMX_Interfaces.html

Apparently these folks haven't discovered DMX512 input yet ;-).

HTH ... Marc
Marc_F_Hult
www.ECOntrol.org