My topic is about, as you can tell by the title, a Raspberry Pi Motion Sensor using a PIR Sensor. First of all you’ll need a PIR sensor, 100 ohm resistor, breadboard wire, and a piezo buzzer. GPIO allows you to interact with the pins and the time allows you to pull in our script. Some benefits of building a Raspberry Pi Motion Sensor are you conserve a lot of money since you don’t buy it pre-built, you learn about the assembly of Raspberry Pi Motion Sensor. The different wire colors don’t mean anything, they are just for reference, because the material is the same inside each wire. It relates to engineering in the way that in engineering you need to think carefully about what you do when you constructing something or putting something together when putting the wires in different places on the raspberry pi where you put each wire matters.