@dcmp
Hi,
Yes, those are the right modules to use.
As identified, you will require a way to take the linear stream of numbers from the Matrix Value Receive across to the LanBox Channels inputs. To achieve that, in the Matrix Value Receive actor, I have specified a comma to separate the values (as in CSV), a script can then be prepared to return each value individually. Isadora offers a range of ways to implement scripts to parse data including with a Javascript.
The Matrix Value Receive actor has an assignment mapping when you double click on it. It is there where you will correlate the channel input to the output stream.
The Matrix Color Send has a video input and I have used the Get Video Size actor to return the pixel dimensions of the video stream (in my case 650 x 650 pixels). I am then using that information to determine the inputs for 'repetition' and 'spacing' of the 1 pixel rows indicating where the video is sampled for its intensity as an input 'grey', greyscale image.
I have prepared an example that resolves what you are doing with the Matrix Color Send module... here.
best wishes
Russell