I have a question regarding Fingerprint Scanner - TTL (GT-511C3). Here is a link.

Is this fingerprint scanner compatible with Raspberry Pi Zero?

1 Answer 1


This Fingerprint Scanner is compatible with the Raspberry Pi Zero. As it uses UART to interface.

Amazon.com says the fingerprint scanner uses, "Simple UART protocol (Default 9600 baud)". Since the Raspberry Pi Zero does have UART pins it is compatible.

Note: this fingerprint scanner is also compatible with all other versions of Raspberry Pi, as they all come standard with UART pins.

Here is a tutorial on getting started using UART on the Raspberry Pi Zero.


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