I've read that's its difficult to build, Just looking at it though I have no problem figureing it out. It doesn't matter if its just a motion detector, I just need something to challange me a little, and to impress the judges.
I am in high school and I am doing an altrasonic circuit for my MITES project. I am using this schematic for it, but I read a lot of complaints about it on this website so I was woundering if there was a better one I could use.
This is the one I am using...