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DMX - Append

I have a "Dune" mini DMX controller 54 channel's and a Theatrelight 48 channel lighting board. I have seen some plugins that will merge, 2, 3 or even more DMX controllers on a HTP, LTP and Append. They seem very expensive starting at US$500+ I'm in NZ. It is append that I think I want to do. Say the 48 channel are left as 1 to 48 and the 54 channel as 49 to 102. Is there a cheaper DIY way. OR is it possible to just reprogram the Mini to start from chan. 49. I've attached photos of the circuit board.

Topic by casrotherham90  

Ethercon/ dmx tester

I have this:I have ethercon I have xlr 3 pin male and female 1= ground 2=negative 3= positiveI have dmx 5 pin male and female 1= ground 2=negative 3= positive 4= spare negative 5= spare positiveEthercon to 4 pair dmx/ xlrPinout ethernet to 4 pair dmx/xlr : start with ethernet pin 1-8 and shieldethernet p1= p2 xlr (xlr 2)ethernet p2= p3 xlr (xlr 2)ethernet p3= p2 xlr (xlr 3)ethernet p4= p3 xlr (xlr 1)ethernet p5= p2 xlr (xlr 1)ethernet p6= p3 xlr (xlr 3)ethernet p7= p2 xlr ( xlr 4)ethernet p8= p3 xlr ( xlr 4i like to make this: a tester to test both ends of ethercon, male and female xlr 3 pin, male and female dmx 5 pin.but also ethercon to xlr 3 pin 1, 2, 3 and 4 / dmx 5 pin 1,2,3 and 4xlr 3 pin male to dmx 5 pin femalexlr 3 pin female to dmx 5 pin maledmx 5 pin male to xlr 3 pin femaledmx 5 pin female to xlr 3 pin malethe tester contains 2 times 9 leds 1 side is 8 green leds the other side is 8 red leds, led number 9 on both ends is ground and is color green and red hopefully not too much info but this is what i like to make, a fast en cheap tester.

Question by HectorS76  

Question about DMX controllers.

Hi okay, this may seem like an over complicated question but here goes, Can dmx rgb led controllers that have ethernet connectors be connected to the controller by a ethernet switch?

Question by electroniccrazy    |  last reply

Dim an LED with DMX and Arduino

I need to control a single LED strip from a DMX lighting desk. I'm planning on using an Arduino with a MOSFET and use the analogWrite function to control the brightness (possibly with some capacitors to smooth the dimming process). I want to be able to transfer the 8-bit value from the DMX channel to the 8-bit analogWrite Arduino function. Any tips greatly appreciated as I've struggled to find any tutorials dealing with only one channel and an issue as simple as this. Thanks. UPDATE: I eventually just used an RGB LED strip DMX decoder and used the three different channels for three different LED strips. The project that steveastrouk posted below is now available at: I eventually just used an RGB LED strip DMX decoder and used the three different channels for three different LED strips. If I figure a way of doing this with an Arduio, I'll post it here.

Question by theredbryophyte    |  last reply

4d Cinema using arduino, Pi, DMX?

Hi I am a beginner. I would like to make something that will do the following. press a button - sound clips play. then after a set time interval the power to a socket powering a light switches off. then after a set time interval another socket powering a smoke machine switches on for a short period of time. Then finally the power to the original socket turns on bringing the lights back on. What would be the best way to do this? would it be an arduino with relays? or pic controller? If i then wanted to make the above into a 4d cinema so it powers up a projector and plays a video file would i be better using something like a raspberry pi that can play video files itself? I would want everything to operate with a press of a button though and do not want to load programs up manually etc. Thanks for your help

Topic by phillsmit3    |  last reply

Gadget Gangster

Some time back you offered projects from a GadgetGangster.Com.  That link is no longer valid so I'm wondering if you have any further details how I can get in touch with Nick McClink who was the owner and engineer behind their products. In particular, I'm interested in the 4 Channel DMX Transceiver ( ). If anyone has a photo of the back side of the PCB or a schematic of the design, I think I could recreate this project on my own.  The Raspberry Pi code would of course also be very helpful. Thank you in advance for any help you can provide. --Harvey

Topic by Harvey Mushman  

How to run (and power) 40 16' LED strips with a single controller?

I am working in a room with an exposed beam ceiling.  I am planning on running 16' strips of 12v RGB 5050 (150 LED) up each rafter.  So in total I will end up with around 40 strips.  Each strip is listed to consume ~36w.  Tons of info on the net about controlling and powering 2-4 strips at a time. But 40?  I'm having trouble drawing out how to power the strips (power supplies + amplifiers) at the same time being able to control them from a single controller.  (A simple generic controller that has selectable colors/ blinking/ etc)  Is is possible to control all these with a single RGB controller? I would love to get into a DMX setup. But all the DMX controllers I've seen only show controlling a grid of 300 LED's.  Is there anything remotely feasible for a home setup that could control 6000 LEDs?

Topic by mrlegoman    |  last reply

How to make a Dmx controled led par can light?

I'm trying to make a led par can light that is controlled by a dmx mixer and powered my 110 AC. The application is pro audio and dj'ing. There are plenty of models like this for sale at many retailers but they are far to over priced. Any instruction or reference would be very appreciated, as I am a newbe.

Question by bondo86    |  last reply

How do I connect an RGB LED Strip to an Arduino DMX controller?

I've been working on a project for a few months now and it's getting to the point where people are suggesting DMX as a method to control our RGB LED Strips. The LED Strip I have is 60ppm (LEDs per meter), and each LED is individually addressable. It runs on 5VDC. In the attached images you can see the connection options for this LED Strip. To control color to each of the 60 RGB LEDs, there is only a single data line. Additionally there are two more connections for 5VDC and GND. I've gotten basic animations and interactions programmed with one LED strip and an Arduino using the Fast LED Library. Moving forward though, I want to have more complex animations with many more LED Strips in different locations all being controlled by a master device. When I tell this to people, they recommend I use DMX (you can see some discussion of this from my partner on the vvvv forum - along with videos and other issues we've been having). Since then I've been looking into DMX a lot and trying to figure out how to make it work for what we want. For example: At most, we would want to be able to have 30 identical LED strips to the one I have now, all one meter in length, all with 60 RGB LEDs. We want to be able to control all of these Strips & LEDs individually. I'm fairly certain since there's only one data in line, each RGB LED only requires one channel from the DMX control. To further this, I think that means I need to be able to control 5 DMX Universes, in order to control the amount of LEDs I'm trying for. So here is my problem. In most/all of the tutorials on DMX RGB LED Strips that I've seen, they show you how to hook LED Strips up with three separate r/g/b lines. There was actually a super useful instructable that was just published that shows the same. I was also looking at Arduino's DMX Shield options and it seems the main one they recommend has three lines out that would connect to the typical 3 or 5 pin DMX connector. Since I'm not using the DMX connectors, I'm not sure if any of these shields are a viable option for me. With all of this in mind, I would like to know what the proper method is for hooking up my specific RGB LED strip to a DMX controller (perferrably an Arduino one - specifically the Arduino Shield they show off of their page). Additionally, would that Arduino shield have a full DMX universe that it could control, or how would I get that? Finally, if these questions are not there a better method of doing this? Thank you!

Question by StumpChunkman    |  last reply

How to step down a 12v DMX LED Controller to 5v?

Hey i currently have an "Abstract MFD-10" DMX controller that i want to run 64 LEDs/2meters of "LPD8806 +5v Strips" off of. DMX Controller= Led Strips= How do i step down the 12v supply to 5v while maintaining the flow to keep the strips running effectively? If you give me the formula for it i can work it out myself and will post here with what i worked out as i enjoy doing my own workings but i am a bit lost with this. Also I am willing to simply change a component in the controller itself if this would be easier and cleaner (No external boards/components) Need anymore info just ask.

Question by Pathogenex    |  last reply

Is it possible to use a usb to external hard drive adapter as a port that can be controlled for other things?

Is it possible to use a usb to external hard drive adapter as a port that can be controlled for other things? like you can do with an lpt1 port like . If this could haappen I could interface it with a program such as Dmx light controller to run a relay bank to run things like a halloween display. Any info would be great.?

Question by wirenut1980    |  last reply

Need help with DMX512 to Analog 0-10VDC Decoder

I am looking to *update* some old strobe lights that my theater uses to be able to control them through our DMX control board.  They have 2 analog 0-10V inputs to control the flash rate and the intensity.  I am looking for the simplest solution as we do not have a lot of money to throw at this project.  I have some experience in electronics as well as working with arduino, but not enough to tackle this job by myself.   Any thoughts on this would be appreciated!  Attaching the control spec sheet. Tom

Topic by AJackOfAllTrades    |  last reply

can i use a micro controller to switch audio or will i need to also use relays? Answered

Hi, I'm thinking about making an audio linked house (each room can listen to music playing from another) (for details read my other post) basically all the rooms are going to be linked to a central switcher witch will have a micro prossesor in it, maybe an arduino or pic. my current design uses a whole load of relays connected to the digital pins via a transistor. i was wondering if there was an easier/simpler way to do this, maybe direct onto the micro prossesor?

Question by ljarrald    |  last reply


I'm very new world microcontroller. I am very interested with microcontroller because I thought, I'll be able to do something big with a very small and affordable prices. I had a problem with my knowledge of how to enter the program to the microcontroller. I am very interested in creating a tool to set up the system to light up a stage and I discovered a site through google ( I plan to create a dmx driver by using ftdi breakout and some components are simple and easy to come by (from dfrrobot + max485 ftdibreakout + resistor 100 ohms) and the tool may suggest I make. Then I was stringing a series of electronics like the one in with the main components of an atmega 8515-16 PU as his driver. Maybe anyone can give me a clue in full, how do I get into the program to enter the mine by using atmega8515 avrstudio 4.18 and avrisp mk II. A tool that has been in my possession:   1. dmx Series with atmega 8515 ( which I will use as the recipient of your dmx signal dmx-made me. 2. AVRISPMKII (USB) CLONE with reference to NUE-125 programmers. 3. PC Windows XP who have already installed the avrstudio 4.18 therein. 4. a laptop windows 7 64 bits.   Thank you for any help from you.

Question by triesna    |  last reply


So here's the deal, I am totally stuck. I've been looking all over and can't find what i need.  my church has 3 projectors for one stage, two on the sides and one in the center, we are planning on buying a couple rgb panels and playing some video loops on them, what I need to happen is for a vga or dmi signal to go to the arduino then convert to rgb and then to dmx to control the panel's.  I have little experience in arduino programming so any help would be great.

Topic by evan.stoddard    |  last reply

software to simulate light shows?

is there any free software out there where i can design and setup virtual lights in a virtual room and then sync them to music? or just something i can sync to music yet have room for creativity?

Question by redsuit09    |  last reply

Midi coding, hack apc40

Looking to get my apc40 midi controller to work properly in freestyler dmx lighting software. OK here is my issue the apc has lights that illuminate when you push a button or twist a knob etc, in freestyler the midi signal does not come back and keep the button lit as long as whatever you have it assigned to is on, and off respectively. I know there are 3rd party programs out there like midi ox, and bomes midi translator that will allow you to change the incoming and outgoing midi messages. But frankly I have no idea what they mean or do. I guess I want the apc to work like it does in abelton, in freestyler.    I'm adding a link to the freestyler forum this has been started ideas of how the program sends and receives midi;=2958&p;=11976&hilit;=AKAI#p11968   also I have attached a pdf of how the apc sends and receives signal. thanks 

Topic by redvandan    |  last reply

Turning horizontal linear motion into vertical

Hi guys, I have a dmx controller which is connected to two sunstrip lights which I control with my foot during gigs. It means I have to balance on one foot and slide the fader up and down with the other in order to get a swell/strobe effect. Have you any idea how I could hack it to turn the horizontal linear motion of the fader into a vertical motion (basically a pedal I can stamp on it swell like a wah) Any suggestions helpful. Cheers!

Question by DaveP177    |  last reply

15 steps to starting your own electronic-kit business - ladyada's tips for success

Voices: 15 steps to starting your own electronic-kit businessLadyada, of MintyBoost! fame among others, gives EDN the step-by-step process for building a successful kit-building business. I've seen her operation, and she's a total pro. If you're interested in doing this yourself, this information is gold.After Limor Fried received her master's degree in computer science and electrical engineering from the Massachusetts Institute of Technology in 2004, she started her own business designing and selling electronic kits, targeting customers who want to explore embedded-microcontroller-based designs or create their own GPS (global-positioning-system)-based systems, among others. She has made Adafruit Industries into a successful electronics-kit business, and, based on her own experience, offers these 15 practical steps for engineers who dream of starting their own kit business. Plus Step 7:Put basic documentation of your project online. You can use the or the site. Put the picture at the top of the project page. Below that, place a one-paragraph description of the project with specifications. For example, if you built a DMX-controlled RGB LED light, your paragraph should describe how bright it is, the DMX-control functions, how many LEDs it has, and why it's innovative. People who will give you publicity are busy, and you should make it as easy as possible for them to copy and paste your photo and description to their blog posts. Repeat this step for each project.Check out her site at

Topic by ewilhelm    |  last reply

6'x10' Light Box

Hi We are building a 6' x 10' light box and need to evenly spread RGB Led's throughout. They need to be very bright and produce an even glow of RGB colors. We have a 6' x 10' ...1/4" diffuserAnd focus ( space between diffuser and Led's can be adjusted). Additional we need a separate bright white led circuit. Output ( view angle ) should be as wide as possible. What RGB LED's would you recommened ?What xtra bright WHITE LED's would you recommened ? What should the spacing be, in order to produce an even light output ?Where could I find wiring plans ? All LED's should be controllable by DMX ? Any help and advise is very much appreciated. thanks bodo 

Topic by 1dingo    |  last reply

LED Board Control

Hi there.  I salvaged 2 boards of LEDs from an old LED can at work.  They were previously DMX, and have an array of red, green, and blue LEDs.  There are four leads coming from the board, +, -, a dashed line, and an unmarked line.  I am looking to integrate these with another project, but am unsure how to go about finding how to control them electrically.  I was thinking it might be digitally controlled right on the board, but I see no IC.   All I am looking to do is figure out where voltage needs to be applied in order to have different RGB levels.  If I helps, the number printed on the board is FT140PCB GS.  I am able to attach an image if that would be helpful. Any ideas of how to go about this?  Thanks a lot, anything would help!

Topic by chamberlain2007    |  last reply

Looking for some clarity on 1w led power

I am having a hard time working the math and figuring out exactly what I need so I thought a question to others might help. I am trying to determine the best way to power a led light.  Here is what I am trying to accomplish.   I have 12"x12" box that will hold 4 round circuit boards.  Each board has positions for 9 1w leds.  3 for red, 3 for green, and 3 for blue.  Each color is in series.  My goal is to use a 12v power supply for each box.  So we are talking about trying to power 36 1w leds all together but they may or may not be all on at the same time.  The box will be dmx controlled by a computer so that I can adjust the 3 leds in each color on each board.  So its possible that I might only have 1 color on 1 board on for example.  Or I could have one color on all 4 boards on (12 leds) at any given time.  Or they could all be on. My led specs Red (610-630nm):DC Forward Voltage:2.2V~2.6V  Forward Current: 350mA green (510-530nm):DC Forward Voltage:3.2V~3.6V Forward Current: 350mA blue (460-465nm):DC Forward Voltage:3.2V~3.6V Forward Current: 350mA  So a couple things that I am having trouble with.  I know that I can power this with 12v using a high amp (15) source but then I need different resistors with high wattage ratings for different colors I would think?  That seems like a lot of power wasted.  So then I can go with a constant current driver but I can't seem to find one that would apower that many leds at once.  Do I need to do two constant current drivers?  Is there a better way?  and what about the fact that each color on each board may be on or off at various times?  Basically using the dmx controller to colorwash the different corners of the 12 x 12 box.  Will that affect the power drawn and change the supply that I need? Thanks

Topic by joecolafrancesco    |  last reply

How can I get a ventilator to suck air from a smoke machine and trap the smoke?

 Hi, I`m making a 2meter laser etched cardboard dinamic sculpture face of a girl inhaling smoke with a smoke machine on the mouth, and I want to imitate this inhaling effect!:  2 Q> what can I use to get the "nose" to absorb the smoke? :  {"A fan or blower can be used to suck the vapor in. Then if you have a long enough duct or large enough chamber let the vapor evaporate/dissipate. You can also run it through a furnace filter to help condense the water vapor faster. "} I got the fog machine 2.1 Q> -I am looking for a strong fan or blower that sucks the air in like a nose (and some machine that traps the smoke particles coming from the smoke machine), but What am I looking for more specifically?  

Topic by DIAGONALLIS    |  last reply

How do I connect several Arduinos through RS485 with the SN75176 chip? Answered

Hello, I want to connect several Arduinos together in a star network (1 Master, several Slaves), but they're too far apart, so I can't use I2C. I researched a bit and found that I can use the serial protocol RS485 and that I can use the SN75176 or the MAX485 chips to do it. Being the MAX485 more expensive than the SN75176, I bought the latter. My problem is: now that I have the SN75176 (I have two, actually), what do I do? I have no clue whatsoever. I found some circuits for the MAX485, but I don't quite get how I should connect them to the Arduino.. Anyway, the chip I have is the SN75176... The only thing I find with Google is about DMX - for lights and stuff like that -, but I'm not interested in that. I just want several Arduinos to send data gathered from temperature and humidity sensors to another Arduino... Thank you very much. :)

Question by pedrotome    |  last reply

How to make bells light-chime for Cathedral art exhibition?

Hello, My girlfreind is making some bell shaped sculptures out of string (seven in total) that are to be hung in the local cathedral, and she would like to make them 'Chime' by lighting up. I say she would like to make them do this, but as I'm slightly more practical (though not a great deal) I've been charged with the job. I've done some reaserch into variouse methods but these either seem unapropriate or are too technically demanding. I've looked at DMX style theater light controllers- too expensive and bulky, and using a programable circuit board controller- over my head. Ideally, she would like a bell to light up for a second or so before dimming, and then have a different bell do likewise and so on. The pattern can be comlpetely random and does not need to represent a piece of music. I thought I may be able to do this with pendant lights and timer plugs, but the timer fragments on these represent fifteen minutes- too long for the lights to be on to read as being struck and chiming. Is there anyway to shorten these time fragments? Would consider using lower voltage lights a transformer and some clever electronics, as I can solder. I just need some idiot-proof advice. I can PAT test it too before using so dont worry, I promise not to sue if I blow myself up. Help! Best wishes, Chris

Question by Chriscarter    |  last reply

Outdoor RGB LED Strip Failure

Hi all,  I've had quite a modest installation of RGB LED tape (45 meters ish, split into more manageable circuits) around the perimeter of my decking. This uses the commonly available 5050 RGB LED Strip light, the type with the epoxy covering the tape and also an outer sheath to protect it from water ingress.  I had heat shrinked the ends and also applied multiple layers of liquid electrical tape where a connection to a 4-core cable was needed. This has held up well for some time.  After about 2 years, I noticed that some of my RGB LED tape runs were sort of 'corrupting' where a small amount of moisture had got in, and shorted the RGB channels so that no matter what I feed into the tape, it always output white (or some other combinations or colours). Still, I ignored this, as it didn;t bother me too much.  These ran back to a central controller, which did the DMX control and amplification of the 12v single.  Anyway, to cut a long story short: Yesterday I smelt smoke.  I was walking around the garden and I noticed that one of the strips had caught fire, at a single point in the middle, and was burning a hole through my decking!  Again, long story cut short, I put this fire out and looked closer. The strip was so badly burnt that I can't determine what went wrong here.  I'm thinking maybe a resistor burnt out and caught fire? The tape has been running 'on' for quite some time (weeks) so this is a possibility.  Another possibility is that there could have been a short between 12v and ground, which caused heat. Now, there aren't any fuses on the 12v rail (fuse and circuit breaker protecting the 240v side) but I wouldn't have thought that this would protect me from a fire anyway!  I'm interested whether anyone else has had a similar experience or has any suggestions as to why this has happened.  I love these RGB LED strips, use them a lot in my house, but after seeing this, I'm not a little more dubious to keep using them.  I'm an electrical engineer (in the making, at University) and this has stumped me!  Thanks Joe

Topic by joearkay    |  last reply

Know how to program a 8' x 30' RGB LED light wall? Answered

I have a unique LED lighting application that I need some help with. Attached are photos to aid my explanation. I have a custom-built light wall that is 30 feet long and 8 feet tall. It consists of 8 individual wooden panels that are approximately 4' x 8' in size. Each panel contains 16 strips of RGB LEDs that are arranged in a pattern that resembles a 16-segment digital clock matrix. Within this matrix it is possible to spell all letters and numbers. Each of these 16 individual strips of light within each panel are referred to as vectors or channels. The exact LED product currently in the boards: In order to spell out what I want to say, up until this point it has required manual blacking out of each vector with individual black plastic strips. As for color changing, each of the 8 panels is controlled by a remote that allows for 7 different individual colors or a handful of preset color changing sequences. Each of the 8 panels is controlled completely independent of the others. This was never the original vision behind the light board, however. The goal has always been to program the board to allow it to function as one dynamic unit. I need live control, perhaps through a MIDI controller, as well as the ability to run pre-set scenes and sequences. Sound reactive would be nice too. With each panel containing 16 channels, in total there are 128 channels across the entire wall. If I am not mistaken, this number seems likely to fit in well with DMX programming. As it stands now, all the channels are wired together in each board to create only one color at a time, and I am aware that the boards need to be rewired so that each vector/channel can be controlled separately. I know there are some RGB strips that allow for control of each individual diode within the strip, but I am fine with having each whole strip being capable of just one color at a time. I imagine this simplifies the programming quite a bit. In terms of the computer program, I have a couple of features that would be ideal. First is the ability to type words and have them appear live on the board, possibly even scrolling across. Being RBGs, the ability to control live color changing/blending is also a must. I am searching for both the hardware and software needed to fulfill this vision. I am capable of rewiring the boards myself, but am uncertain what specific style of plugs/connectors would be needed to connect each of the 8 panels to the master board/controller. I am also uncertain what type of board/controller is required. If you have any leads on products that are capable of fulfilling this application, please let me know. If you are capable of programming a custom program (if only a custom program would be suitable for this project) or know someone who is, again, please let me know. I'm also interested in what you think the budget would be. If there are any details I have left out that are essential to your determination process, contact me and I'll fill in whatever blanks may exist. Hope to hear from you soon, and thank you for your help.

Question by montejenkins    |  last reply