Hello Everyone; I am working on a project for my theatre,

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1

Hello Everyone;

I am working on a project for my theatre, building a LED matrix, I have been working with Tobias Ebsen’s OpenPixelNode found here: https://github.com/media-architecture/OpenPixelNode/blob/master/Software/OpenPixelNode/OpenPixelNode.ino

Arduino Version: 1.0.1
Board: Arduino Uno R3
FastLED Library version: Current
Build From: Windows

I am getting these errors on compiling for Lines 93-96…
OpenPixelNode:93: error: no matching function for call to ‘SK6812Controller<0u, GRB>::show(CRGB*, unsigned int)’
C:~\Arduino\libraries\FastLED/controller.h:394: note: candidates are: void CPixelLEDController<RGB_ORDER, LANES, MASK>::show(const CRGB*, int, CRGB) [with EOrder RGB_ORDER = GRB, int LANES = 1, long unsigned int MASK = -1ul]

Any help you can provide would be awesome!

Thanks

James

2

That’s because that code was written against an older version of the library - show now takes three values - the CRGB data, the length (in number of leds) and hte brightness. E.g. you need:

        case 0: port1.show((CRGB*)artnet.getDmxData(), artnet.getDmxLength() / 3, 255);break;
3

Thanks for the input Daniel;

I am still getting some issues, I have updated the relevant code to:

case 0:
port1.show((CRGB*)artnet.getDmxData(), artnet.getDmxLength() / 3, 255);
break;

however I am now getting the following error on compile:

C:~\Arduino\libraries\FastLED/controller.h:394: error: ‘void CPixelLEDController<RGB_ORDER, LANES, MASK>::show(const CRGB*, int, CRGB) [with EOrder RGB_ORDER = GRB, int LANES = 1, long unsigned int MASK = -1ul]’ is protected
OpenPixelNode:103: error: within this context

Would it be worth going back to a previous version of FastLED to solve this?

4

Yeah - maybe - this isn’t a very well documented/supported way of using the library (you’re basically using methods meant to be used by the library internally to do things) - and i’m going to be offline for the next day or so - so I can’t chase down what changes you’d need to make to your code or the library to get it to work the way you want/expect.

5

No worries. I’ll try rolling back to V2 and earlier and see if that solves it.

Thanks!

James

6

It compiles with V2 finalrc

Thanks for the help!

James

7

Could the matrix be ARTNET? I’m working on a project that does that