I wonder if anyone can help (asking for a friend LoLz) ? I am looking at this page here: https://braintoblueprinttobuild.wordpress.com/2016/04/17/diy-laser-projector-part-5-building-it/ and wondering if rather than using an arduino to generate the signal if the output from a PC soundcard could be used in a similar way to this: https://www.youtube.com/channel/UCECl4aNz5hvuRzW5fgCOHKQ is that possible? My friend is interested in projecting Lisserjoos figures and that sort of thing using lasers. It would be great if it could be driven by a PC soundcard output as he could use the output from VCVrack.
Sorry if I am asking this in the wrong place? If so, sorry, is there another forum or another place that you know of that would be a better place to ask this question?