I just received the Fingerprint scanner and I am having trouble setting it up and can't figure out to enroll a fingerprint. I am using an Arduino uno and i have a PC. I tried using the SFG Demo but when I select 'open device' I chose my com port but then an error pops up that says 'open device fail,please check the password and the device address!' I have retried several times and i get the same result. I then tried to enroll with Arduino but when it would ask for an ID # when i sent a number nothing happened.
Thank you,
David
Fingerprint Scanner
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- adafruit_support_bill
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Re: Fingerprint Scanner
Please post a photo showing how you have the device connected to the UNO.
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Re: Fingerprint Scanner
This is how I have it connected when trying to enroll with the SFG Demo.
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- adafruit_support_bill
- Posts: 88093
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Re: Fingerprint Scanner
The wires on the sensor itself are quite thin and do not make reliable connections on a breadboard. We recommend soldering them to header pins or short pieces of 22awg solid-core wire for use in a breadboard.
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Re: Fingerprint Scanner
I have the wires making good connections. When i power up my arduino the sensor flashes to tell me its on but I still cant get it to enroll.
- Franklin97355
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Re: Fingerprint Scanner
how have you modified the wires so they make good connections and how have you tested the connections?I have the wires making good connections.
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Re: Fingerprint Scanner
When I power up the arduino the fingerprint sensor blinks the red light so the ground and 5V wire are making good connections, and the white and green wire have the same length of wire to connect to the breadboard.
- Franklin97355
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Re: Fingerprint Scanner
Could you connect the wires to 22ga solid wire and stick that into the breadboard or directly into the Arduino?
- adafruit_support_bill
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Re: Fingerprint Scanner
A connection that is good enough to flash an LED is not necessarily good enough for high-speed digital communication.When I power up the arduino the fingerprint sensor blinks the red light so the ground and 5V wire are making good connections, and the white and green wire have the same length of wire to connect to the breadboard.
We have worked with thousands of these devices and the #1 problem is poor connectivity due to the thin wires.
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Re: Fingerprint Scanner
Alright. Would soldering the wires to long break away headers work?
- adafruit_support_bill
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Re: Fingerprint Scanner
Yes. Soldering to header pins should work well.
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Re: Fingerprint Scanner
So I soldered header pins to the wires and I retried enrolling, but I am still having the same problem. When i enroll with arduino it finds the fingerprint sensor but i cant type in an ID#. When enrolling with windows I get the same error message.
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- Joined: Thu Feb 27, 2014 12:02 am
Re: Fingerprint Scanner
Friend, what message you receive an error?
Could you post the code that is getting the error?
Could you post the code that is getting the error?
- Tannyveer
- Posts: 2
- Joined: Mon Aug 11, 2014 6:44 am
Re: Fingerprint Scanner
Hello Sir,
I want to buy adafruit fingerprint sensor from your shop. Can you let me this sensor is working for my udoo quad like ardino due boards because all these boards are operating 3.3V TTL.If it is woking perfectly how i orders this sensor.
I want to buy adafruit fingerprint sensor from your shop. Can you let me this sensor is working for my udoo quad like ardino due boards because all these boards are operating 3.3V TTL.If it is woking perfectly how i orders this sensor.
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- Posts: 7
- Joined: Sat Jul 26, 2014 1:44 pm
Re: Fingerprint Scanner
Sorry I was on a 26 day backpacking trip so i didnt have access to my phone or a computer. But what error message do you want to see? The error when I try and enroll with windows?
Please be positive and constructive with your questions and comments.