太阳能草坪灯控制系统研究与设计

AbstractA low power consumption and high performance solar lawn lamp control systemwith STM32 as the core is designed.The system has the functions of antiovercharge,anti -discharge,automatic opening and closing of lawn lamp.Thesignal collected by the photosensor is sent to STM32,and the ADC of STM32realizes multi-channel synchronous analog-to-digital conversion of the inputsignal,and the lighting circuit is controlled according to the illuminationintensity.The battery is the only power source of the solar lawn lamp.Bylimiting the voltage at both ends of the battery,the battery can be preventedfrom being overcharged or overdischarged,effectively protecting the batteryand extending its service life.Key words:STM32;Lawn lamp;The ADC.battery