Process

It is very hard to connect two sensors together on the breadboard at first. Because I connected these two as series circuits at first, so it didn't work for a long time, I searched a lot about Arduino circuits to find the solution to achieve this successfully. And I tried to add the piezo but there is not enough space on a single breadboard, so I just tried to write the code to control it and then // them. And I will try after I get another breadboard.