Raspberry pi and artnet (DMX)
March 10, 2023, 23:01
I have a pi 3 B+ and a 3 A+ and was wondering how I could connect them to my unreal dmx console using artnet. I would like one of them to emit the solid colour received through the projector that is connected via hdmi.
<@1061458111082270860> basically this https://www.raspberrypi.com/tutorials/raspberry-pi-tv-ambient-lighting/
no, it cannot. But you can do this directly on your PC.
without any capture card
<@148902538119217161> https://github.com/awawa-dev/HyperHDR
that would be very impracticcal to use my PC 😉 but thanks !!
that depends on what is the source. pico defo cannot handle image processing...
No, not like this. This is for a stage lighting project that needs to interface either with my laptop through dmx or using a StageCL lighting board.
so what's gonna be the source?
something sending to E1.31 ?
<@1061458111082270860>
so basically you want e1.31 receiver that drives LEDs ?
easiest is https://github.com/Aircoookie/WLED/
i will look further into it on monday when I can play with the soundboard again. Possibly what I am looking for. My laptop is being serviced right now so i cant really work on it.
yes. Except instead of driving led is emits the colour through the hdmi port on a pi
aaaaaaaah now i understand. Visualiser.
if i may ask, why would you utilize HDMI ?
so it interfaces with the projector to emit a solid colour
but... wouldn't it be easier to get proper light beam ?
easier and cheaper
you know, those rotating effect heads
that are specifically made for this exact purpose
Yeah, we have some of those but we need it to interface with a projector because our budget is stretched to the limit and we can't afford ore lights
does not projector cost more?
The school already has like 50 just sitting in a closet
that are owned by the district
oh wow
in that case sure 🙂
JFYI since it is single color (so you do not care about resolution), you might use composite out
easily splitttable to multiple projectors
we could. I only have an hdmi cable thoguh. I have a vga adapter and the projectors are daisy chainabke through vga. (I am on my phone so sorry for my bad grammer)
VGA... hmm... not sure pi supports usb2vga adapters
i mean like an hdmi to vga adapter
well, that could in theory work.
as for software, i am affraid you would have to write your own code
what language would I write it in. I am fluent in c# but not great at python
then do so in C# 🙂
how would i run it on a pi though
Okay. then is there a simple library for hdmi out? is the a library that could be used for both a pi and a normal windows pc?
hdmi out? that's just graphical output
Okay, would I be able to run like raspbian lite and it still work. My Pi is sort of slow.
how come?
I don't know. I have a class 10 microsd card.
I have a 3b+ a 3a+ a Zero and a pico
well...
zero is only singlecore.
pico is slightly™️ more powerful arduino
I also have an arduino but I like the form factor of the pico a bit better.