Diagram SOlution

This Flashing LEDs uses a clean Astable multivibrator built around the general timer IC NE555. Resistors R1,R2 and capacitor C1 determines the output frequency. what time the output becomes excessive, Red LEDs light basic. When the capacitor C3 charges fully, Yellow LEDs light. The delay occasion relating this depends on the denomination of C3. while the output of Astable turns low leafy LEDs light using the current stored here the capacitor. Since this cycle is very fast, several levels of Flashing can come to pass obtained. If the light from Green LEDs is low, reduce the numeral to lone.

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