| 摘要 |
PURPOSE:To provide a data display device for a bicycle which is constituted to have a function to hold necessary data, such as a running integrated distance, even when a battery is exchanged. CONSTITUTION:A data display device for a bicycle is provided with a microcomputer 22 calculates a physical amount based on a wheel size stored at an internal RAM and a pulse signal from a number of revolutions of wheel sensor 15, stores the calculated running physical amount at the internal RAM, and displays various states, stored at the internal RAM, by a liquid crystal display part 14. A non-volatile memory means 17 to electrically erase is provided. Specified data of various data stored at the internal RAM is transferred and stored and meanwhile, after data during exchange of a battery is cleared, data stored at the non-volatile memory means 17 is transferred and stored at the internal RAM of the microcomputer 22. |
