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ZFM-20 fingerprint capture library

ZFM-20 fingerprint capture library
ZFM-20 is optical fingerprint sensor module series developed by Zhiantec. Resolution of this fingerprint modules are 256×288 pixels and depending on the module it can be accessible over UART or USB interfaces. Other than capturing fingerprints this module has inbuilt DSP to process and verify captured fingerprints.

This ZFM-20 fingerprint library is developed to capture and retrieve fingerprint images from the above sensor module. The main purpose of this library is to use ZFM-20 sensor with PC as low cost fingerprint capture unit and because of that, in-module fingerprint processing and verification functions are not implemented in this library.

ZFM-20 fingerprint sensor test setup with CH340G serial to USB converter.

ZFM20-LIB is x86 native shared library and its implemented using Lazarus/FPC. This library is developed to use with most of the programming languages which including C, C++, Delphi, FPC, Microsoft .net framework based languages, etc. Object oriented wrappers for this library are available for both .net framework support languages and for FPC.

This version of ZFM-20 Fingerprint capture library is tested with ZFM-20 series serial fingerprint module with CH340G USB to serial converter. Generally this library is design to work with any USB to serial converter which including FT232, CP2101, etc. 

ZFM-20 fingerprint capture library is an open source shared library project and it’s source code and compiled binaries are available at https://github.com/dilshan/zfm20-lib. This library is released under the terms of MIT License.

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