红外抄表。CPU = LPC921F ，通过检测传统电表的转盘转数记录电度。有防义务停电处理，与抄表终端通过红外通讯。防停电处理是通过不停写Flash实现，而写Flash有防止目标单元损坏而影响结果的优化处理。-Infrared meter reading. CPU = LPC921F, by detecting the traditional meter of the wheel rotation degrees Record electricity. Obligation to deal w

STM32系列基于专为要求高性能、低成本、低功耗的嵌入式应用专门设计的ARM Cortex?-M0，M0+，M3, M4和M7内核（ST's product portfolio contains a comprehensive range of microcontrollers, from robust, low-cost 8-bit MCUs up to 32-bit ARM-based Cortex?-M0 and M0+, Cortex?-M3, Cortex?-M4 Flash micr

利用stm32驱动步进电机的开发程序，STM32系列基于专为要求高性能、低成本、低功耗的嵌入式应用专门设计的ARM Cortex?-M0，M0+，M3, M4和M7内核（ST's product portfolio contains a comprehensive range of microcontrollers, from robust, low-cost 8-bit MCUs up to 32-bit ARM-based Cortex?-M0 and M0+, Cortex?-M3, Co

对于步进电机的相关研究，STM32系列基于专为要求高性能、低成本、低功耗的嵌入式应用专门设计的ARM Cortex?-M0，M0+，M3, M4和M7内核（ST's product portfolio contains a comprehensive range of microcontrollers, from robust, low-cost 8-bit MCUs up to 32-bit ARM-based Cortex?-M0 and M0+, Cortex?-M3, Cortex?-M