Project based on raspberry pi

Not an 'expert' like what #-Link-Snipped-# says, But I can help you bit.

ganesh ghumare

I want to do a project based on raspberry pi in which I want interface lcd, fingureprint scanner,printer,

- Raspberry Pi doesn't comes with Plug N Play support for printing, you have to install cups & configure it . It is very much easy. (CUPS : Common Unix Printing System)

- Why just interface LCD, when you can interface entire goddamn monitor 😛

- Furonic FS80 & FS88 Fingerprint scanners works fine. Source : <a href="https://elinux.org/RPi_VerifiedPeripherals#Fingerprint_Scanners" target="_blank" rel="nofollow noopener noreferrer">RPi VerifiedPeripherals - eLinux.org</a>

ganesh ghumare

plz help me where I get ckt diagram

You won't get anywhere, you have to make it on your own. (PS : Just block diagram would do, no need of circuit diagram. RPi's ckt diagram alone is complex to freak you out)

ganesh ghumare

how I program raspberry pi

By default you can use Python scripting language to control gpio. However, if you're well versed with Python than C, you can use C library & control hardware with it. Infact, you can talk with hardware in any language if you know how to.

ganesh ghumare

wat is cost of all

You should google this on your own. We don't know the specific details of the component you need.