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Dear All
After my previous experiences I think you are my last chance to find sollution in my topic:
ubuntuforums.org/showthread.php
" href= "darkblue.homeip.net/.../topic.php darkblue.homeip.net/.../topic.php
or please contact me here or directly.
Thank you very much. Best regards
Mariusz Ciszewski
This relates to Keil how exactly?
It strange but as I experienced - to find programist knowing fingerprint issues for linux is almost impossible.
I suspect the pay/benefits you're offering to staff your project are simply inadequate.
There are ready-to-connect fingerprint sensors that has a memory for multiple fingerprints integrated in the sensor.
So you connect the sensor to a computer or microcontroller and the sensors says "no match" or "user 1" or "user 2" or "user 3"...
So hardly any programming needed - well suited even for hobbyists or medium grade school projects.
You are right but you are talking about proffesional and hi cost devices. I'm talking about integration low cost USB fingerprints for hobbyst / private use or non commercial project (like my RaSp485berry (based on my devices (room drivers connected together via RS485) and Raspberry as a central unit (AVR and linux based computer) low cost USB cameras (motion application for motion detection) and I hope, low cost fingerprints readers (to identify persons caming from outdoor inside a flat).
It exist a ready to use package: fprintd-verify
linux.die.net/.../fprintd
fprintd-verify [-f finger] [usename]
and it's result can be used in bash scripts, for example:
#!/bin/sh
res='timeout 5 fprintd-verify | grep result'
if [ "$res" = "" ] then echo "'date +%Y.%m.%d-%T' - rescan to fast, please wait a few seconds..." fi
if [ "$res" = "Verify result: verify-match (done)" ] then echo "'date +%Y.%m.%d-%T' - acces confirmed" fi
if [ "$res" = "Verify result: verify-not-match (done)" ] then echo "'date +%Y.%m.%d-%T' - acces dennied"
But as we can see username have to be given first, then fingerprint scan is checked.
I need some equivalent for fprintd-verify that will be able to give me as output name of user just passed the verification. And fprintd-verify cannot to do it. It needs username at first.
Maybe I should contact Bastien Nocera and Daniel Drake (authors of fprintd). How do you think?
"hardly any programming needed"
The programming is in how to associate a finger (or fingers) with a system "user" - and then how to pass that on to the system as a login or whatever.
www.antronics.co.uk/.../
No, I'm not talking about professional, costly devices.
I'm talking about existing fingerprint readers costing maybe $10 to $20 that might be able to store 10 fingerprints in the device.
So the programming needed is to decide when it should be in 'learn' mode, and which memory slot the programming will fill and which user that memory slot should represent.
And later the programming needs to react to 'invalid' scans or to scans that tells you what memory slot the scan matched. You translate the memory slot to mother, father, little sister, big brother, gardener, ... and decide what to do. But no involvement of actual fingerprints.
Could you please give me an example of such existing and low cost devices? I'm curiuos if their equivalents are also available here in my country.
Thank you very much and best regards!
Did you try to just google for cheap fingerprint scanner?
fleabay has a large number of different fingerprint scanners around $10 to $20, and several of them has memory storage for multiple fingerprints and do all the fingerprinting on their own.
A bit of googling would also find a couple of school projects.
Maybe:
www.agreetao.com/.../22292879344 www.alsotao.com/.../tfs-s64