Recent content by domls

I have exactly the same mixer. Just some initial thoughts, but have you tried muting the effects? What about the power supply coming from the wall...is it dirty? Did you try on a different circuit? domls

Thanks derekleffew. domls

Hello to all, First, I'd like to thank those who responded to my post back in September concerning writing my own software for DMX control. I've learned quite a bit since then, though I am far from an 'expert' in the industry. Thanks go out to derekleffew, TimMiller, SHARYNF, STEVETERRY...

Hi waynehoskins, I totally understand where you're coming from. Heck, I used to program Apple II computers in assembly language in 1983 to create video games! I don't even own any "regular" par cans, and when I do buy some in the future, I'm sure they'll be the LED type with many DMX...

:) Hi N1ist, That sounds like a good idea. I actually want to build my own "box" as it were that is dedicated to sending the data via DMX protocol. Sounds like I need to buffer the incoming data in the box and just have the program worry about sending data via a protocol that I create for...

Here's what I've learned today: It appears that the only real solution to writing my own program for controlling DMX lighting fixtures is to either A) Build my own converter box that does 2 things: 1) converts the signal from say, USB, to RS 485, and (most importantly) 2) ALSO ESTABLISHES A...

On the B&B site, I found this converter box: Isolated Inline USB to RS-232, RS_422, RS-485, isolated, in-line, high retention, high-retention It offers baud rates up to 921Kbps, but on the downside, it's $120.00 (non-isolated version). OK, so that should take care of the hardware...from...

Hi Soundman, Thanks for the input. I checked out the ENTEC site. It looks like they have a USB to serial converter. B&B Electronics (Industrial Serial Communications - B&B Electronics) also has several USB to serial converters that support RS 232 & RS 485 serial comm. In addition, they...

OK, thanks. Perhaps I should start at the beginning, then. There certainly are software controllers on the market today (like MyDMX from American DJ). It appears that it comes with a "box" to convert the signal (I would imagine) from RS 232 to DMX. So, first question, what is the box...

Yes, that sounds like a GREAT idea! Thanks! domls

Allow me to give a real-world example. I have a "COLORpalette" from Chauvet which can be set up to be a 6, 9, 15, or 27 channel DMX LED light. The first channel determines the function. If I set the first channel with a value of between 060 and 079 (decimal), then it is set to 6 Channel mode...

Thanks, fredthe, I'm not sure that the B&B 232 to 485 converter box handles 250,000 bps, or that there is a 1 to 1 correlation between bps in 232 and 485. I'll have to look at the specs of the box, and see what it says. It might have a limit of 115200 on the 232 side. Baud rate in RS 232...

OK, no problem creating the sending of all 513 bytes of data (START + 512). rmarston: Thanks for the link. I checked it out briefly and, like many (or most) other web sites with DMX info, it really gives very detailed information about hardware, timing, etc... But it seems that nobody ever...

Hello to all! I'm writing a DMX software controller program and have found a lot of useful information already at this site! Just doing a little minor lighting at live sound gigs, and, since I'm a programmer (25 years of programming), I thought perhaps I could design and build and DMX...

Hello to all, first post here! I am writing a DMX software program to control lighting gear from my laptop at live sound gigs. I'm a very experienced RS 232 programmer (VB.NET VS 2005), so I bought an RS 232 to RS 485 Converter box from B&B electronics. I've wired up my own DMX connector...