ok, please don’t kill me for this. we have a project going on, with long streams of rgb pixels, but where as i personally like to put my own stuff together, this project is with built for purpose parts.
the outcome is to have 6 sets of 80 pixels, with all pixels individually controlled by showcad
the purchaser has managed to purchase a dmx-spi decoder, not a driver. now i recognise spi, and type in spi led controller and first in the google search is the fastspi yay!
now i see that the dmx-spi decoder is now deprecated, but i wonder if someone can help with a little instruction.
we only want to use one universe for the leds, so 2 screens of 13*6 leds in rgb is 234 channels, * 2 gives us 2 screen in one universe.
is using say a teensy/arduino with fastspi the best option?
is there a simpler paid for option?
i effectively want zero input from the user, plug the leds into the controller, plug the controller into the decoder… whatever comes out of showcad is sent as dmx, dmx converted to spi, spi is then converted to led colours
Do you have a link for the DMX-SPI decoder they have? Some of the DMX-SPI controllers don’t mix with the rgb strips that are the bulk of what the library controls these days - SPI could mean any number of things. It could mean pushing RGB data out like the strips we generally use do. It could also mean pushing out just simple on/off commands through shift registers.
You could also have the teensy receive the DMX and drive from there.
http://www.alibaba.com/product-gs/910484558/Chuanshi_DMX512_SPI_LED_Decoder.html
this is the one that we have currently.
but we have just found a new one for 23.99 each, which has direct dmx support to ws2801 output
Ok - i’m tempted to say you should go with that - the decoder that you linked to is very vague about what it supports - it may support the chipsets directly, it may not : /
You know - I wonder if I should write code/build something such that you could have an arduino/teensy that took DMX in and wrote out everything that FastLED supported…
this is actually one of my future projects. the display world will live with dmx forever, and i need to link into it.
there’s such a market for it. the artnet system is thousands, and the simple system we are planning (170 leds rgb) is a universe. a universe costs £250 for the box and then the coding… to run the system that we WANT, would cost £2500 just for the controller boxes… and to think that it could be replaced with a 19$ teensy!