The most significant risk at this point is that we might not have enough time to finish, integrate, and test all of the different systems. We are trying to mitigate this by spending more time on the project for the remainder of the semester. We want to at least have a somewhat working system by the end, so if need be we have the contingency plan of relaxing some of the use case requirements to at least have some of the systems working together and integrated. There has also been the difficulty of various components breaking at different points over the course of the semester.
The main design change since last week is that we will be using a Raspberry Pi 4 instead of a Raspberry Pi 5. This is as a result of the RPi 5 breaking as a result of a short circuit caused when we were setting up the motors. The switch to an RPi 4 was necessary because there were only RPi 4s available in the ECE inventory and not RPi 5s. This also changes the powering system that we will be using, since the RPi 4 requires less current. The one benefit of this is that the RPi 4 powering system is simpler since the RPi 4 requires less power than the RPi 5.