For my EE 120B Embedded Systems class, I needed to create a custom lab as my final project. I chose to build a security system. The requirements were to build an embedded system with 3 "build-upons." These build-upons were a concepts that were taught to us through lab and lecture but modified to do something different than shown in lab. The 3 "build-upons" I chose are the following: 1. The use of a PIR sensor, 2. Creating a custom character on an LCD screen, and 3. using UART to implement a bluetooth module.