In the progress of December, we used new code to run micromouse and discovered a problem with micromouse not walking in a straight line. I solved this problem by replacing the wheels with the same size and the motor with the same frequency. I also added wiring to make the micromouse run more consistently. In addition, my team members finished the PCB design and worked on more unique features. We also had an inspection, which gave us more suggestions. I believe we can make better progress in the next year.