方案文档下载：

R5F21331CDFPU0.pdf    

方案设计图：

方案关键器件表：

类型	型号	厂商	说明
MCU	R5F21331CDFP#U0	Renesas	Timer, 5 V operation, and small package

方案描述：

Renesas' range of 8/16-bit microcontrollers that are equipped with the necessary functions such as A/D converter for use in sensors and LCD controller for setting display is ideally suited for these applications. Electronic blind control optimizes the quality of light in a building. It controls the positions or movements of blinds for different lighting conditions, for example day and night, summer and winter, and sun and cloud. The blind control may be linked with the air conditioning system for further energy savings. Equipped with additional sensors, the risk of damage by high winds can be avoided. Manual control of the blinds may be achieved via infrared remote control.