Curtain opener will open and close the curtain of your home just by pressing a switch. With the help of this circuit you did not need to move from your place to open and close the curtain. This circuit is used for domestic purpose especially for small doors and windows.Same circuit is used for closing and opening of curtain. Due to its small size it can be easily fitted with curtain. You can also power the circuit with the help of adapter readily available in market.  Curtain opener circuit comprises of two IC namely CD4013 and ULN2003 with few more components. CD4013 IC contain two independent D type flip flop which exists in one of two states and can store information. Each module is further equipped with a group of  pin outs assigned as data, set, reset, clock input and a couple complementary outputs.