The purpose of this project was to build a motion detector. The main components used were the Arduino microcontroller and the PIR sensor. The project also used an LED and a Piezo buzzer to indicate when motion was detected. The group sought to demonstrate the workings of each component as well as how they work together to carry out the task. The group also drew up a circuit from which the components were connected. 

The main objective for the project was to practice the skills learnt over the Spring 2016 semester and to creatively show how analog signals can be converted to digital signals. The group started their work by researching briefly o what other people had been able to do on the same issue. They later agreed upon the actual project, the components required and the modulus operandi. 

From the results, it was demonstrated that motion, which is a physical property, can be used to effect changes in a digital device and using the LED and Piezo buzzer, the motion can be announced thereby allowing it to be used as an intruder alarm.