Rachel Williams has been an editor for nearly two decades. She has spent the last five years working on small business content to help entrepreneurs start and grow their businesses. She’s well-versed ...

Who knew it could be this fun building a photo frame?

现在，我们将每根导线的自由端缠绕在传感器各自的引脚上。传感器应该有两个引脚，所以将GND线缠绕在一个引脚上，将A0线缠绕在另一个引脚上。确保两根导线的金属丝没有任何部分相互接触。