基于单片机的自行车里程表设计研究

This thesis presents the design of a multi-functional bicycle odometer based on a Holzer element. The system utilizes the AT89C52 single chip microcontroller core and A44E Holzer sensor to measure the speed and mileage of the bicycle. The system is designed to store mileage information in the AT24C02 EEPROM in case of power failure, and display the physical quantities of the bicycle's mileage and speed using LEDs. The hardware portion of the system uses the Holzer element to transmit the pulse count for each revolution of the bicycle to the single chip microcontroller system, which then processes the signal and sends it to the display device. The software portion of the system is programmed using assembly language and employs a modular design approach. Keywords: Speed; Mileage; Holzer Element; AT89C52 Single Chip Microcontroller. In summary, this thesis describes the design of a multi-functional bicycle odometer using a Holzer element. The system is capable of accurately measuring the speed and mileage of a bicycle, and storing this information in EEPROM for future reference. The hardware and software components of the system work in tandem to provide a reliable and user-friendly solution for cyclists. The design of this system demonstrates the application of microcontroller technology in the field of sports equipment, and showcases the potential for integrating electronic components into everyday devices for enhanced functionality.