I like the error margin on resistors. Feels like any number without one is kind of incomplete!
Nice job! You may want to add a manifest so it’s easily added as an app on mobile (add to Home Screen)
This is a situation where rote memorization will make your life easier.
I love this! It looks simple and nice for embedding, instantly obvious how to use it.
I love the rendering of the metallic colors as real gradients!
The one thing I'd change is maybe slightly less blur radius on the text shadows, just for a little bit cleaner look.