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Probably not going to be replacing spice simulation anytime soon haha
I'm supposed to be getting a clean sine wave on the scope and the only time i get a clean sine wave on the scope is when the simulation frequency is at 300hz...
That being said, it's still a nice little program for the money. As a tool to teach digital electronics that don't require so much accuracy it would be fine. Which I'm thinking is the point since there is no way, which I could find, to get a negative voltage source and the lm741 is the only truly analog IC in the kit so far. It does have inductors and caps I think so maybe you could build some passive filter circuits, but everything else seems to be there for the purpose of the digital computing. If someone had a book on digital ICs they could follow the path of flip-flops, basic clock circuits, down counters, etc. And for those purposes it's accurate enough.
As of this comment it's been out for a few days so maybe over time it will get better, but for the price it's pretty fair just understand, if my findings are correct, you wont be getting valuable output from oscillator circuits, active filters, or op-amps in general. It's also worth noting that I'm not an Electrical Engineer and my calculations could be off, or there may be something the sim accounts for that I didn't or that wasn't apparent in the circuits I built. I will say I haven't bunked it up in my linear circuits class that bad so there is some credibility backing my opinions and findings. In short: take this with a grain of salt.
What little I've done with it though, it's generally accurate. I didn't see any tolerance variation in the parts though so I'm guessing the values are pretty rigid.
I got valuable enough data from the in game scope to know the sims frequency to be working for a simple RC Phase Shift Oscillator circuit. Any other frequency and the scope wasn't able to produce an 'expected' sine wave. IDK why you need an IC to check the sim accuracy.
Just explaining what I'd done based off of a lab I was doing in school at the time. So I just happened to have the exact same parts on my breadboard and the measured values written down. Made it fairly quick to check my results IRL against the simulation.