“Here we use PIR sensor and Arduino to detect the motion of a hand. This detection can be used to operate electronic equipment.
In this article, we’ll show you how to make a gesture detector by simple components like PIR sensor and Arduino Nano. At the end of this article you can:
Explain PIR sensor applications and how it works
Run an 8-Pixel PIR sensor named TPA81
Use PIR sensor to detect motion and gesture by Arduino
Make a cool detector to increase or decrease your speaker volume”