In November, after completing the infrared sensor in the team, I started the PCB project by myself. This project required me to build the circuit board in the software, and then draw the connection design scheme and 3d model. Learning in courseware video allows me to understand the design method, which is relatively simple at first, but more and more devices make it more and more difficult. Even after the completion of the professor’s inspection, there were still many location problems, so I have corrected it twice now. All in all, the project is expected to be completed in November.