The hardware we used for this project was an Arduino, Adafruit IR Break Beam Sensor, resistors, and a 16×2 LCD. Originally, we used IR LED lights and a simple IR sensor. This proved to be highly inaccurate and inconsistent. The Adafruit IR break beam sensor was exponentially more reliable and worked all the time. To figure out how to wire these components, we referenced the Arduino documentation. The documentation is extensive and extremely helpful for anything related to Arduino.