Hi everybody. I am trying to create home made oscilloscope & frequency generator. And I will use a LCD to display the waveforms. Being a newbie in electronics, I have got less ideas about how to start & how to make it. The circuits on the internet have max input of 5V, most of them. I wanna create one so that I can use it as a real one... Both oscilloscope & frequency generator. Can u please help me in this regard??