So, as far as I understand is, to use a buzzer, I just need some current... So, no need of the 555, right?You can but I am not sure it meets the intention of the teacher's assignment. It is my guess that the teacher wants the 555 to generate an audible tone (astable mode). If you use a buzzer instead, like you have so far, what is the point of the 555.
Think about it, your interpretation is better titled, "self-turning off buzzer" than your title on this thread, "single tone buzzer with 555 timer".
Ok, so to the 555 generate an audible tone (astable mode), what can I use in LTSpice?
The fisrt part of this problem, yes... Then I need to build another circuit that emit an "american siren" (whatever that is), but for now, yes, it's a single tone but using the 555!Is your project is to emit a single continuous annoying tone?
Your ears with thank you for that switch.