How to make Password lock at home

How to make Password lock 

4 digit pin lock making all components list

5x Capacitor 470uf

5x diode 

11x pushing Switch 

1 x transistor bc547

1 x electronic Hummer 

You can make easily at home analog password lock 

You can use this pin lock with your home door

https://youtu.be/1wwi6MGMvjE

How to make password lock Full video 

This is circuit diagram 

Is circut ku banana bohut hi asan q ki usme sara basic sa components use kiya gaya hai 

Aup is circuit ku bana sakte bohut asanise 

Ghar par 

Aur yea lock bhi high protect hai 

Koi bhi asanise tud nahi sakta 

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