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此程序为自行车计附带产品.可以计里程,计速度.清零等功能.采用霍尔传感器传输信号,单片机采用中断扫描.然后用数组的形式在LED上显示.-procedure for bicycles or spin-off products. Total mileage can be up speed. Reset function. Hall sensor used for signal transmission interrupt SCM scan. Then in the form of an array of LED show.
高精度实时时钟-SD2001驱动程序,在要求较高精度的地方可以作为参考资料。-High-precision real-time clock-SD2001 driver in place require a higher accuracy can be used as reference materials.