This may be a silly question, but is it possible to use a PC as a simple oscilloscope? I was wondering if it's possible to have a cable with a 3.5mm audio jack on one end and two crocodile clips on the other, and then run a piece of software on the PC. Alternatively, could you use a cable with USB-A connector & crocodile clips instead of an audio jack? I'm not at the point where I need an oscilloscope, and may well never be, but it would be cool to have something simple available for the occasional time I might need it.
...like I needed another project for my backlog!
"Hardware eventually fails. Software eventually works." - Michael Hartung
I'm not sure I really want to try this project; I'd probably end up blowing up my wife's laptop! 🤣
The instructable uses the audio input and the oscope would only be good up to 20kHz. That is pretty poor performance. Not sure it would be worth your time to build it.
I found my iRig 2, which I thought I had sold. I wonder if it would work as an input for oscilloscope software? Will investigate, hopefully without blowing up the laptop!