Re project (Biometric attendance system using FPS)

Hello everyone!

I’m doing a project using the Finger Print Sesnor GT511C3. And I’m facing quite a lot of issues.
Since the TX and RX pins of GT511C3 take in an input voltage of 3.3V and the Arduino Uno only gives an output voltage of 5V, I need to use a voltage divider (for which I thought I’ll use resistors) to reduce the voltage.
But I’m not able to figure out the divider circuit. I’d be really grateful if someone helped me out with this.
Have been stuck with this for many weeks.

Thankyou in advance.

may it help you

Hello Bharati
Have you completed your project. Can you tell me how you did it?

Thank you in advance.