I just wanted to know that .. Will I be able to interface r305 fingerprint sensor with Arduino ? Plz reply

I googled R305. It seems to be a boat. I don't think you can use a boat to scan fingerprints, or connect a boat to an Arduino.

Perhaps YOU should have supplied a link.

May this couldd be it


It uses 5V, TTL level RS232.

R30X.pdf (635 KB)