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r303a fingerprint sensor doesnot responding properly
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_bill on Sun Jun 09, 2013 6:29 am

On the Mega, not all pins are supported for Software Serial. You have to use the pins listed below:

http://arduino.cc/en/Reference/SoftwareSerial
Not all pins on the Mega and Mega 2560 support change interrupts, so only the following can be used for RX: 10, 11, 12, 13, 14, 15, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64), A11 (65), A12 (66), A13 (67), A14 (68), A15 (69).

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Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_rick on Sun Jun 09, 2013 8:40 am

What messages are you seeing in Serial Monitor?
Does the Fingerprint Sensor light up at all?
Is the cable connector seated properly in the sensor?

Post some clear, detailed, focused pictures showing the wiring on the Mega and on the sensor.

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Re: r303a fingerprint sensor doesnot responding properly

by Deserter on Tue Jun 11, 2013 7:49 am

how to view the code for reading the finger print?
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Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_rick on Wed Jun 12, 2013 10:06 am

Deserter wrote:how to view the code for reading the finger print?

Please refer to our tutorial
http://learn.adafruit.com/adafruit-opti ... int-sensor

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Re: r303a fingerprint sensor doesnot responding properly

by Deserter on Mon Jul 14, 2014 4:03 am

Hi I having a problem detecting my fingerprint hardware with my arduino mega 2560 the serial monitor shows "did not find hardware" have read the previous solutions but it does not come ok. what needs to be done now?
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Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_bill on Mon Jul 14, 2014 6:06 am

Post a photo that shows all of your connections between the sensor and the Arduino..

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Re: r303a fingerprint sensor doesnot responding properly

by bywaterbury on Thu Mar 16, 2017 3:49 pm

Hi! I am asking about your fingerprint sensor. My Adafruit order number is: 1361968-3594470212. I purchased it on February 13, 2017. The issue I'm having is that when I input my fingerprint, it consistently fails to match up, saying there is an unknown error. The link for the tutorial I am using is: https://youtu.be/1diFaa5OsFg

This is what shows up on the serial monitor (in quotations):
"Adafruit Fingerprint sensor enrollment
Found fingerprint sensor!
Ready to enroll a fingerprint! Please Type in the ID # you want to save this finger as...
Enrolling ID #1
Waiting for valid finger to enroll as #1
.
.
.
.
Image taken
Image converted
Remove finger
ID 1
Place same finger again
.....Image taken
Image converted
Creating model for #1
Unknown error
Ready to enroll a fingerprint! Please Type in the ID # you want to save this finger as..."

Thank you so much for any valuable advice you have to share!

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Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_rick on Fri Mar 17, 2017 7:46 am

What version of Arduino are you running?
Make sure you have the latest version of the Adafruit Fingerprint library.

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Re: r303a fingerprint sensor doesnot responding properly

by bywaterbury on Fri Mar 17, 2017 11:09 am

I'm using Arduino 1.6.10

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Re: r303a fingerprint sensor doesnot responding properly

by bywaterbury on Fri Mar 17, 2017 11:16 am

I'm using the fingerprint library that the fingerprint scanner came with.

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Re: r303a fingerprint sensor doesnot responding properly

by adafruit_support_rick on Sat Mar 18, 2017 7:52 am

Use this version:
https://github.com/adafruit/Adafruit-Fi ... or-Library
(you can also go into the Arduino Library Manger and grab the latest version there).

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