gt-usb

GT5F-js

Nodejs, Python & Header Only C++ library for the GT-521F52, GT-521F32 and GT-511C3(R) fingerprint scanners

It uses the Linux SCSI Driver so no OSX support. It probably also doesn't work on Windows (MinGW), but it could be ported.

It can be installed with yarn add gt-usb or npm install gt-usb.

Note that due to the usage of Generic SCSI GT-* over USB always requires CAP_SYS_RAWIO (e.g. setcap cap_sys_rawio=ep a.out or root)

Features

• Support for the entire GT-521F52 API
• SCSI-over-USB; so no adapter required.
• Node.js, Python & C++ support
• Flexible interface so all SCSI GT-5* fingerprint readers should work.

Usage/Example

Node

const { CMDCodes, RunCommand, Initdevice, ReceiveData, Initialize } = require('gt-usb')
(async () => {
  let deviceInfo = await Initialize('/dev/sr0')
  console.log(deviceInfo)
  // Turn on/off CMOS LED
  let status = await RunCommand(CMDCodes['CmosLed'], 0x00)
  console.log(status)
})()

Python

See bottom of gt5.py

C++

See middle of gt5.py

Header Only Lib

The header only lib is usb_protoc.hpp it will handle the SCSI commands and CRC for you, you only need to provide a file desciptor and the commands/data.

See usb_test.cpp and usb_module.cc for examples.