I'm sure it would be, but we are not doing the course, you are. If you at least try we will be only too willing to help, but few if any people will write it for you. If you are lucky someone may paste some existing code that's close and let you modify it to suite.
But really you should be doing the work. How did you get to T-3 days in a final and have nothing to show?
Also if you interrupt on the start bit there will be nothing to read because the byte is still in transit, and as we said the serial port is already interrupt driven, so you are not constantly polling it.
Yeah he's probably a prepper, but just in case he's not I wouldn't ask too many questions
I'm not a prepper as such but we're mostly off grid and I do like to be as independent of the official infrastructure as possible. Our stocks are low at present but normally we should be able to last for 3 months, no fresh fruit and veggies of course, but overall we'd be pretty comfortable.