PIR Sensor Tutorial - With or Without Arduino

Just before creating my next projects tutorial, which will be using a PIR sensor, I thought I might create a separate tutorial explaining the working of a PIR sensor. By doing that I will be able to keep my other tutorial short and to the point. So, without wasting time let’s discuss what is a PIR sensor and how we can use it in our project. Driving a Relay With an Arduino -------------------------------------------------- https://www.instructables.com/id/Driving-a-Relay-With-an-Arduino/