We don’t really know of a practical use for this, but it would make a nice practical joke tool. If you want some more complicated oscilloscope effects, check out Tennis for Two.

Rohde & Schwarz Oscilloscope Days 2025 provides expert knowledge for day-to-day testing challenges. Source: GTY/Westend61 ...

Even so, we can still think of plenty of practical uses for a ~$7 oscilloscope. If you do decide to add some front-end circuitry to change to voltage range, you can set them in the app ...