2024 National Electronic Design Contest, Problem H: Line-Following Car Mainboard

This open-source project is the motherboard for a line-following car from the 2024 National Electronic Engineering Competition, Problem H. It uses the TI MSPG3507 as the main controller. To meet the various requirements of the competition, it adopts an integrated power supply, modular plug-and-play functionality, and multiple voltage conversion schemes. This provides more stable voltage, facilitates module replacement, and features a more customized layout design. For example, to facilitate the DuPont wire connections of the seven-channel line-following modules, we created small slots in the PCB to tidy up messy wiring. Furthermore, to facilitate better debugging during the competition, we used larger buttons and larger LED indicator lights. The overall dimensions strictly adhere to the size requirements of the competition car. Our car can perform line-following functions, navigate through broken lines on the map, and maintain stable speed control.