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Control the curtain switch control system research, the overall hardware design system according to the function can be divided into crystals circuit, reset circuit, light collection, motor drive circuit, show circuit, key circuit, dial the code circuit and power supply. The program design according to the function can be divided into full open fully closed the curtains to be automatic control program design, ajar shut partly curtain automatic control program design, manual control curtain program design. This design want to complete the function: system for automatic mode, the light of the day or night acquisition circuit judge, and then sent to the single-chip microcomputer high level/low level, after receipt of the single chip by show circuit of the state that at this time, at the same time single-chip microcomputer control motor through positive &negative so as to realize the curtain away and shut System for manual mode, through the keys to send command circuit chip, microcontro