First, we made the decision to build the electric circuit for infrared sensors. We chose to start collecting all of the components in bags in order to prevent losing any of them or having replace them with new ones because of how many there are. Subsequently, we started connecting it using the electrical circuit sketch that was located in Canvas. It was a little challenging due to the large number of components, as we had to use an additional small breadboard and we connected it later to the main board. We discovered the unexpectedly large current after completing the electrical circuit and turning on the power supply. After much searching, we were able to determine that the LED was not infrared. We also finished the PCB design of the IR circuit after many attempts and finally Alex did it well. It was complicated connecting the components together and finding the best location for them.