Fingerprint Sensor Problem

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neonlimb
 
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Fingerprint Sensor Problem

Post by neonlimb »

Hello,
I am having problems with my fingerprint sensor that I purchased recently. I am able to run the enroll script using my arduino (duemilanove atmega328) and enter fingerprints with IDs but am unable to recall saved fingerprints using the fingerprint code. The only recognized fingerprint I get is the last one that I registered but it reads as ID #0, not the id I assigned it.
I am also unable to recognize the sensor using the windows software. It says error message: open device fail, please check the password and the device address.
I've run the software as admin and get the same problem. I've used both my arduino and a serial to usb adapter, with no luck.
I've looked through the forums and tried all the suggestions. I've also gone though the tutorial multiple times but am still getting the same problems.

Do you have any advice?

Thank you!
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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

neonlimb wrote: The only recognized fingerprint I get is the last one that I registered but it reads as ID #0, not the id I assigned it.
That is very strange, but this is the second time I've heard of this exact problem in the past week. I'm going to have to do some research on this.

As for SFGDemo, I have the same problem with it. It appears to be a bug in the program, and I don't know of any fix for it.

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faysal_hossain
 
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Re: Fingerprint Sensor Problem

Post by faysal_hossain »

i have faced the same problems.only last fingerprint is saved and it returns 0.
i dont understand what to do ...........

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

I'm wondering if this is an effect of the enroll sketch. Can you try changing the Serial Monitor to send a newline only:
newline.png
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faysal_hossain
 
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Re: Fingerprint Sensor Problem

Post by faysal_hossain »

Sir,
i hv changed it to newline in serial monitor but same problem.......:-(

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

I will get a new fingerprint sensor and see if this is a problem with the current stock.

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

I've just verified this behavior with a brand-new sensor I ordered. This is something new. We will have to investigate what's going on. Obviously, something has changed with the sensors.

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neonlimb
 
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Re: Fingerprint Sensor Problem

Post by neonlimb »

Great.
Thank you.

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dosarif
 
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Re: Fingerprint Sensor Problem

Post by dosarif »

Hi, same problems here.
1.The SFGdemo software will not find the sensor on any com port.
2. When using the enroll sketch only the last fingerprint is stored and the ID defaults back to 0 when trying to enroll additional fingerprints.

The correct ID gets passed into the getFingerPrintEnroll function, but somewhere in there it gets converted back to 0.

It looks like during the call to the finger.get_image function the id gets changed back to zero

any help would be appreciated.

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

Please post the serial monitor output from the enroll sketch

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dosarif
 
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Re: Fingerprint Sensor Problem

Post by dosarif »

HI, here is typical output, thanks.

Found fingerprint sensor!
Type in the ID # you want to save this finger as...
Enrolling ID #6
Waiting for valid finger to enroll
.
.
Image taken
Image converted
Remove finger
Place same finger again
...........Image taken
Image converted
Prints matched!
ID 0
Stored!
Type in the ID # you want to save this finger as...

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

Please download a new copy of the fingerprint library, and see if it works. If it doesn't work, post the output from Serial Monitor again
https://github.com/adafruit/Adafruit-Fi ... or-Library

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ram16690
 
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Re: Fingerprint Sensor Problem

Post by ram16690 »

Hi Help me out..
I am enrolling using arduino..but it automatically takes id as 0(zero)..
all the templates are stored in id zero..
i tried installing new library too..


here goes my serial monitor below:
fingertest
Found fingerprint sensor!
Type in the ID # you want to save this finger as...
Enrolling ID #0
Waiting for valid finger to enroll

cheers..

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adafruit_support_rick
 
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Re: Fingerprint Sensor Problem

Post by adafruit_support_rick »

What ID number are you trying to set?

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ram16690
 
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Re: Fingerprint Sensor Problem

Post by ram16690 »

5,6 ..

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