You'll figure it out, I'm sure! You can probably continue to piggy-back on the Arduino environment by using inline assembly (the asm("") statement), but it's an

You'll figure it out, I'm sure! You can probably continue to piggy-back on the Arduino environment by using inline assembly (the asm("") statement), but it's annoying since you need to keep the assembly in a C++ string literal. In the meantime, please read the manual or look up some tutorials on Youtube on how to use the oscilloscope. They're complicated for sure, but I think you had a popular hobbyist model and there should be help to be found. Failing that, look for the word "cursor" on the front panel; cursors is usually how you measure things and it's like at the core of scope functionality so it should not be hard.