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Title: Arduino DMX controller and PIC DMX Led slaves Post by: a_lessais on January 16, 2013, 11:45:34 23:45 Hello all!
I'm a newbie from Quebec. Please forgive my "basic" English skills. I'll try the best I can, but sentences will probably sound strange sometimes. Anyway, I'll share with you a project I want to do for a long time: I want to illuminate the front of my house with RGB leds, a led each feet for the 40 feet of facade. I'll put the leds under the soffit, about 6 inches away from the wall. The outside walls of my house are made of flat rocks. I want to give an effect with the shadow of each rocks, enhancing relief. I want each led to be addressable. I want to be able to run animations with the leds. Not something the neighbour across the street will be mad about. Only gentle effects an attentive eye will notice: simulate my house "breathing", react to "presence" around the house like someone tripping a movement detector, etc. I researched quite a few protocols and I think DMX sounds about right for my needs. There are a lot of software already available to create sequences. As I have basic PIC programming skills, I decided to use these microcontrollers for the "slave" units. But as I want the sequences to reside on uSD cards and want to have network connection with the "Master", I choose the arduino as many implementations have these features built-in. It is my first contact with the "other" ecosystem. I'll give a shot at programming the "Master" this week. I just received "3 channels DMX slave" from ebay. I'll try to make them work with the arduino and when it works, I'll program the "Slaves" (PIC + TLC5940). I'll keep you informed of my work. If you have any question, feel free to ask. I'll upload my files (PCB, source code) as I progress. Thanks A Lessais Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: SuperDrive on January 17, 2013, 07:04:48 07:04 Any clue on a DMX variant that can address more then 512 slave?
Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: ZASto on January 17, 2013, 02:38:52 14:38 @a_lessais:
It would be nice if you figure a Master with 'duino+SD, and to be able to "decode" Vixen sequences to another format "chewable" by 'duino @SuperDrive: sACN ( Streaming ACN, E1.31) aka DMX over IP, will post later a link to a project made by Robert P. Martin (RPM) which is sACN-DMX bridge with 4 DMX universes. Links: http://q-services.biz/Share/E131_to_DMX%20Bridge_Source.zip http://q-services.biz/Share/E1.31-Assembly-Pics.zip http://q-services.biz/Share/E1.31%20setup%20and%20operation.pdf Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: ravenfeather on January 17, 2013, 05:53:13 17:53 Just to say - there is some RGB LED stripes ( found that recently) that has some control chips in it - 300 LEDs about 150$ I think. Bad thing is that not every LED is controlled individually - they are grouped by 3 .
Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: solutions on January 17, 2013, 07:35:57 19:35 Thanks for not sharing a link regarding your "found that recently" 300LED strip and making me look for it.
In looking, I found these individually addressable LEDs in a strip, along with instructions for Arduino hookup: http://learn.adafruit.com/digital-led-strip Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: folkeu on January 17, 2013, 08:37:17 20:37 Hi,
You have too this link for the software : http://www.pcdimmer.de/index.php/pcdimmer2012 and the interface USB/DMX512 : http://www.pcdimmer.de/index.php/dmx512-hardware/dmx512-interface In this web site you have too receipter DMX for RGB led : http://www.pcdimmer.de/index.php/dmx512-hardware/dmx512-rgbled @+ Title: Re: Arduino DMX controller and PIC DMX Led slaves Post by: Ichan on January 17, 2013, 09:13:34 21:13 Thanks for not sharing a link regarding your "found that recently" 300LED strip and making me look for it. In looking, I found these individually addressable LEDs in a strip, along with instructions for Arduino hookup: http://learn.adafruit.com/digital-led-strip Google once more: "ws2811 smd5050 rgb led". RGB led + WS2811 chip in a smd5050 package - $0.15/pcs @ 100qty on the cheesy land. -ichan |