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wireless dmx flickering
Posted: Wed Feb 03, 2016 4:25 pm
by wcjc99
any one use wireless transmitters? when I use it on my obey 6 and 10 and 3 I have no problem all night long . after about 5 or 10 mins with QLC different story . I get flickers and changing of color of lights on my slim pars and my Chauvet spot duo even when it is off will jump all over the place.
if any one had this problem can you please help thank you
Charles.
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 4:40 pm
by plugz
Hello,
Please state:
- your Operating System
- QLC+ version
- What's the wireless DMX transmitter
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 4:50 pm
by wcjc99
well I started with
windows 7 and had the problem and still having it using windows 10 now
QLC+ 4.10.2
and I'm using
Wonsung 10PCS DMX512 DMX Dfi DJ 2.4G Wireless Receiver & Transmitter
but I have the same problem if I am using only one of them not the whole set.
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 5:01 pm
by plugz
And what do you use to send DMX data to the wireless transmitter ?
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 5:17 pm
by wcjc99
I made a homemade usb to dmx using :
USB to TTL RS485 Serial Converter Adapter FTDI interface FT232RL Module
http://www.ebay.com/itm/321512499456?_t ... EBIDX%3AIT
I did already order this little guy to see if that was the problem but it has not came in yet I think in comes tomorrow:
USB to DMX Interface Adapter LED DMX512 Computer PC Stage Lighting Dimmer R8H4
http://www.ebay.com/itm/LED-DMX512-USB- ... 1826235031
I do not have any problem with my homemade one using dmx cable. works right as it should with no dirty signal
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 5:31 pm
by plugz
I'd say the wireless transmitters do not like what's being sent to them.
Can you:
- Try with freestyler on windows ?
- Try with QLC+ on linux ?
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 5:39 pm
by wcjc99
man im really enjoying qlc it is so easy and I have made lots of scenes and chases so far really did not want to change to freestyler and learn all over was hoping for a quick fix
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 6:49 pm
by janosvitok
You don't need to program the whole show in freestyler. Just a quick tet whther the lights flicker.
Re: wireless dmx flickering
Posted: Wed Feb 03, 2016 7:37 pm
by wcjc99
ok ill try it out thank you .
whats the rate the signal is sent at its like 30hz transmit rate on the output side or something like that I don't have it in front of me so I know im not saying it right, but does that have anything to do with it and can that be changed?
Re: wireless dmx flickering
Posted: Fri Feb 05, 2016 3:16 pm
by blekenbleu
Symptoms are as if wireless transmitter slows FTDI serial output,
which gets updated by USB before DMX frame has completed.
If possible, reducing channels is better than reducing frequency.
I suppose that your FTDI interface is recognized by QLC+ like USB Enttec Open.
Here are QLC+ DMX USB Enttec Open tuning parameters:
http://www.qlcplus.org/docs/parameterstuning.html
FWIW, I forget to look for QLC+'s User Documentation hyperlink on the right side of the main page
instead of at the top..