This 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 curtain opener circuit is used for domestic purpose especially for small doors and windows.
Same circuit is used for closing and opening of curtain automatically. 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.
Fig. 1: Prototype Of Curtain Opener Circuit On Bredaboard
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 output Q and . CD 4013 comes in 14 pin dual inline package. To understand the working of circuit first we have to understand its pin out of CD4013.
Fig. 2: Pin Diagram OF CD4013 IC
1. Pin no1, 2, 13 and 12 are called as complimentary outputs hence both are available as the output means both output stages (high and low) are available. This set of output changes stage while setting and resetting the IC producing opposite logic level at any instant when operated in bistable mode.
Fig. 3: Pin Diagram Of ULN2003 IC