The document summarizes a study on designing an automatic gear transmission mechanism for motorcycles using an embedded system. It aims to make gear shifting faster and less destructive for the driver. The system uses a microcontroller to select transmission gears based on vehicle speed measured by a speed sensor. It also implements automatic headlight control that dims the high beams when opposing vehicles are detected to avoid blinding them. The system is intended to make driving easier and more efficient while being reliable, economical and low maintenance.