基于STM8L052的水表程序，支持阀门控制，IC卡读写，液晶显示和低功耗，低功耗下小于3uA.-Based STM8L052 water meter that supports the valve control, IC card readers, the liquid crystal display and low power consumption, the low power consumption of less than 3uA.

stm8l052 是一个低功耗单片机， halt低功耗模式可以最大降低功耗(Low power mode of stm8l052 halt)