Photoelectric control weather forecast circuit

On sunny days, the air humidity is low, and hair dries and shrinks. Lift the thin cardboard so that the optical coupler receiving tube receives
the signal , and the LED does not light up. When rain or snow is approaching, the air humidity increases, and the hair absorbs moisture and becomes longer, causing the thin cardboard to Rotate downward so that the receiving tube receives
the signal from the transmitting tube and the LED flashes. From NE555 and R1, R: and C. Makes up a clock pulse generator of approximately 2Hz. Use this to predict whether the weather will be
sunny or rainy or snowy.