Title: **Project 12 / Knock Lock**

Post by:**eligijusjuodagalvis** on **Jan 18, 2017, 10:31 am**

Post by:

Good morning,

I have one question about this project. How the piezo element responds to 5 kHz frequency waves ? We know that this project have:

// variables for the high and low limits of the knock value

const int quietKnock = 30;

const int loudKnock = 100;

So... how can we know how much we need kHz to reach like this 30 - 100 value ?

I have one question about this project. How the piezo element responds to 5 kHz frequency waves ? We know that this project have:

// variables for the high and low limits of the knock value

const int quietKnock = 30;

const int loudKnock = 100;

So... how can we know how much we need kHz to reach like this 30 - 100 value ?