What is the purpose of connector J1 and J3, can I use any of them instead of J2 to interface with Control unit if my connector J2 is damaged.

hello i have this kind of model and was wondering if this device has drivers ... can this device work without using arduino??? plsss do reply

So I just got this and wondered about the conditions necessary for the device to determine if a finger is present 'enough' to enroll. Here's what I'm getting at; if I draw a little image on a piece of paper and substitute that for a finger, I can get a raw image but the device times out for both enrolling and 'get image' meaning I suppose the image did not meet some requirement of the device to do what it does. Any ideas on this criteria? Oh and two things might be of interest, the software will run on XP fine and I've removed the cameras enclosure and it's just that, an image sensor with LEDs surrounding it (removing that did not allow for 'get image' or enroll).

HI, What is the average time to IsFingerprintPressed->Capture id fast mode->Identity->CloseLed->Close. For me with Windows IOT It take 3 seconds to capture an print in fast low quality mode. It is normal? I test at 9600 ou 115200 baud.

how i feel when i use this fingerprint for my school project : https://www.youtube.com/watch?v=FwksVc30GuI

Hi everyone! I try to make a .net lib to use it with Windows IOT on a PI3. Just in case, anyone already does this king of lib? I see nothing on the Internet about that. I try to adapt the python lib but I got some problem communicating with the GT511C3. I currently use 2 USB->Serial adaptor to try to see what kind of data I send. What kind of program do you use to read Hex serial data? I try to work with the C++ sample on this site (I don't know how to run the Python script on windows). But when I select the right COM port and click connect, nothing append. Loaded the source in VS2015 and compiling generate 2 errors. I am in the dark now! Any suggestion? Thanks

Could someone post an example of 498 byte data template?

excuse me i'm new here. my project is about access control system. i just want to know if i want to scan some fingers from this devices and then store it in the database in my server. when someone scan them finger let it compare the finger with any finger in the database is it possible? and what method i have to use. i already read the library it not support with the arduino and what OS or board i have to use. linux isn't it and what programming language that can i develop.

Hi, I'm using this module with a Mega 2560 and I ran into the same problem as some of the other users. I wired it in the same fashion as described in http://wordpress.hawleyhosting.com/ramblings/?p=375 . When I run the blink sketch I get this in the serial monitor FPS - Open FPS - SEND: “55 AA 01 00 00 00 00 00 01 00 01 01" and the LED fails to turn on. However I get a green light on the light directly above pin 1.

Additionally I can't seem to get the module to interface with the given SDK demo program.

Images of wiring and code: http://imgur.com/a/ZQutq

Finally got this working on arduino! I'll post some stuff when I've got a sketch working perfectly, but in the meantime here's what I did:

byte highbyte = 0;
byte lowbyte = 0;
byte command = 1;
word checksum = 0;
byte highcheck = 0;
byte lowcheck = 0;

//Here comes the part you want to put in void loop that sends the command to the device

  command = 0x12; //The command goes here. This is the command for the LED.
  valueToWORD(0); //This value is the parameter being send to the device. 0 will turn the LED off, while 1 will turn it on.
  calcChecksum(command, highbyte, lowbyte); //This function will calculate the checksum which tells the device that it received all the data
  Serial2.write(0x55); //Command start code 1
  Serial2.write(0xaa); //Command start code 2
  Serial2.write(0x01); // This is the first byte for the device ID. It is the word 0x0001
  Serial2.write(0x00); // Second byte of Device ID. Notice the larger byte is first. I'm assuming this is because the datasheet says "Multi-byte item is represented as Little Endian"
  Serial2.write(lowbyte); //writing the largest byte of the Parameter
  Serial2.write(highbyte); //Writing the second largest byte of the Parameter
  Serial2.write(0x00); //The datasheet says the parameter is a DWORD, but it never seems to go over the value of a word
  Serial2.write(0x00); //so I'm just sending it a word of data. These are the 2 remaining bytes of the Dword
  Serial2.write(command); //write the command byte
  Serial2.write(0x00); //again, the commands don't go over a byte, but it is sent as a word, so I'm only sending a byte
  Serial2.write(lowcheck); //Writes the largest byte of the checksum
  Serial2.write(highcheck); //writes the smallest byte of the checksum

//Now for the functions

void valueToWORD(int v){ //turns the word you put into it (the paramter in the code above) to two bytes
  highbyte = highByte(v); //the high byte is the first byte in the word
  lowbyte = lowByte(v); //the low byte is the last byte in the word (there are only 2 in a word)
}

void calcChecksum(byte c, byte h, byte l){
  checksum = 256 + c + h + l; //adds up all the bytes sent
  highcheck = highByte(checksum); //then turns this checksum which is a word into 2 bytes
  lowcheck = lowByte(checksum);
}

It's pretty rough, but I hope this helps someone who was struggling with this as much as I was.

If you're not familiar with some of this:

A byte stores 256 values. A word consists of 2 bytes, and a Dword consists of 4 bytes. The bytes to be sent here were represented in hexadecimal, which is base 16. A word can be split into 2 bytes to be sent. For example: 0x1234 is made up by the bytes 0x12 and 0x34. highByte(0x1234) = 0x12 and lowByte(0x1234) = 0x34.

Hope this helps!

Hi need to some help! I need this for my final year project and I was just wondering if this device would work with an android application for an android device like a tablet. Would this device connect directly to the tablets micro usb port? or do i need some sort of circuit to bridge the connection?

This is a Python driver for FPS GT511C3, enjoy!

http://quickgroup.github.io/pyGT511C3/

Does it work with raspberry pi?

Any arduino code, I'm struggling with this one.

I had problems with the previous version C2 ( could also be user related :) but this C3 works great . The speed is around 550ms , quite fast . Works for me !

I've been unable to get the Blink sketch to work on an Arduino Yun and a 2560 Mega. I'm using the bidirectional line converter from Sparkfun and I've verified the scanner is sending and receiving 3.3V and the Arduino is sending and receiving 5V.

When I run the blink sketch I see this in the serial monitor FPS - Open FPS - SEND: "55 AA 01 00 00 00 00 00 01 00 01 01"

In the FPS_GT511C3.cpp file in the library I added a line at the end of the Open() function to do a serial print and it doesn't show up so it's getting hung somewhere in the Open() function.

I also moved to pins 10 and 11 because the Mega doesn't support interrupts on 4 and 5. I'm completely out of ideas at this point. Could it be a bad unit?

This is a Python driver for FPS GT511C3, enjoy!

http://quickgroup.github.io/pyGT511C3/

im selling this & my customer is having hard time. can someone from sparkfun release a manual to follow?

Does anybody know if the templates are repeatable?

For example, if I use the same finger in the same position, will I be able to create multiple identical templates? (REALLY identical, as in template1 = template2).

To connect with my computer what cables/converters needed. Lets me know

Hi, does anybody know which format has the template? or, is it possible to obtain an svg directly from the scanner? Thanks

Does it come with the wires?

What are those solder pads beside the jst connector?? the video shows an IC soldered to the solder pads? Any information about that.

For anyone curious why they can't get valid images from their GT-511C3 scanner, it's because the device, at the default baud rate of 9600, will not output the correct number of bytes for the image (it sends ~3250 of 52116 and stops).

To grab images from the device, you need to first set the device baud rate to something like 115200.

I spent way too long trying to figure out why images wouldn't download, only to discover this just now. Wish it was mentioned somewhere.

Hi. I just want to use this to turn fingerprints into templates, send the template to my computer and use my software to make the 1:N matching. This way i would be able to have much more fingerprints and have faster comparison times.

IS THIS POSIBLE?

Thank you.

I'm thinking about using this with a raspberry Pi as part of an access control system. putting aside the lack of tutorials to help with that my main question has to do with using a few of these possibly on different doors. Is there anyway to enroll on one and have other devices grab the data so that the same fingerprint can work on more than one device without having to reregister?

I bought 2 fingerprint scanners (C3) and have managed to get the windows software working with my arduino. I am able to execute most of the functions (enroll, verify, get image etc), but I am having trouble setting templates. I can get the template from 1 scanner no problem, but when I try to set the template to the second device, I can see that the scanner is receiving data (through Rx led on arduino), but the software eventually says "communication error". Same issue with set database. Does anyone experienced this issue or have any advice for solving this problem?

Dear,

I bought the Finger Print Scanner (GT-511C3) I am developing a project where I need to store the biometrics on a server. Then need to check the biometrics registered in the database. I want to know how to store biometrics in a string to send to the server. I'm doing this with the Arduino Mega 2560

Thank U

Dear,

I bought the Finger Print Scanner (GT-511C3) I am developing a project where I need to store the biometrics on a server. Then need to check the biometrics registered in the database. I want to know how to store biometrics in a string to send to the server. I'm doing this with the Arduino Mega 2560

Thank U

Hi everyone. I wanna make a project with GT-511C3 and Ethernet Shield.. But i could not make.. If i remove fps or ethernet then project is working correctly.. could you help me?

hi, is generated template unique? and for a finger that use same time the template is same?

I'm a bit confused about the numbers (fingerprints stored and users)... in the description it says it can store up to 200 fingerprints but in the video the software can only store 20 "users" (which I take to mean "one finger"). Assuming that each "user" requires 3 fingerprints, that's only 60 fingerprints. Is the 20 users just a limitation of the software? I looked through the supplied datasheet but couldn't find anything.

Hey guys, I'm trying to interface this fingerprint scanner with an AtMega324pa microcontroller (no arduinos are allowed in our senior design). I'm having a lot of trouble just getting the LED to turn on. I have the baud rate set to 9600 (confirmed with an LSA), data bit length is 8 bit, 1 stop bit, and parity disabled. Could any of you please look at the hex values that I am transmitting just to confirm that they are correct? Also if anyone has code that they used for an Atmel AVR or PIC I would really appreciate it. int main(void) {
USART_init();

while(1)
{   
USART_Transmit(0x55); //Command start code 1
USART_Transmit(0xAA); //Command start code 2
USART_Transmit(0x01); // This is the first byte for the device ID. It is the word 0x0001
USART_Transmit(0x00); // Second byte of Device ID

USART_Transmit(0x01); //1st byte of parameter
USART_Transmit(0x00); //2nd byte of parameter
USART_Transmit(0x00); //3rd byte of parameter
USART_Transmit(0x00); //4th byte of parameter

USART_Transmit(0x01); //1st byte of command
USART_Transmit(0x00); //2nd byte of command (always 00)

USART_Transmit(0x02); //low check byte
USART_Transmit(0x01); //high check byte
////////// Command to turn on LED
USART_Transmit(0x55);
USART_Transmit(0xAA);
USART_Transmit(0x01);
USART_Transmit(0x00);

USART_Transmit(0x01);
USART_Transmit(0x00);
USART_Transmit(0x00);
USART_Transmit(0x00);

USART_Transmit(0x12);
USART_Transmit(0x00);

USART_Transmit(0x13);
USART_Transmit(0x01);
}

}

Good afternoon. Tell me how to solder wire if I do not have a jumper? On the reverse side of the board is the pads are not labeled. Thank you

I want to share with everyone here, it worked perfectly for the Netduino plus 2 (NET Micro Framework v4.2). A code example follows:

    public void Executar()
    {
        ConfigurarRede();            

        EnviarFrequencia Enviar = new EnviarFrequencia();
        Enviar.Send(1,1,DateTime.Now);

        // initialize the serial port for COM1 (using D0 & D1)        
        serial = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);

        // open the serial-port, so we can send & receive data        
        serial.Open();
        //serial.DataReceived += new SerialDataReceivedEventHandler(serial_DataReceived);

        Abrir();
        Thread.Sleep(200);
        LerPortaSerial();

        if (resposta)
        {
            AscenderLedIdentificacao();
            Thread.Sleep(200);
            QtdeIdentificadores();
            Thread.Sleep(200);

            while (true)
            {
                CaptureFinger();
                Thread.Sleep(100);
                IdentificarLeituraBiometrica();
                Thread.Sleep(100);
                LerPortaSerial();
            }

        }

    }

Extremely fast, accurate and easy to use. Fingerprint Scanner - TTL (GT-511C3) exceeded my expectations. I want to congratulate the entire team sparkfun. Thank you very much.

I would like to know if anyone has managed to make this fingerprint scanner work with the raspberry pi, i have been struggling to make it work

hey, what about delete a fingerprint registration already exists? I would appreciate your response

Is it possible to expand the number of fingerprints saved? Can it be configured to access external storage (eg. SD Card)?

Thanks Gabe

Hi, Is anyone succesfull in getting to feed the template data which the device is sending through UART. I have already written my functions for performing most of the operations but struggling with this. The device is giving me a NACK_INVALID_PARAM error. Please help.

What cable to I get with this? Its kinda BS that it doesnt come with one... seriously. Theres no reason to justify that

Has anybody tried to download the fingerprint template from the reader? What format is it in? is it a set of raw 506 bytes that can be stored in an array of bytes?

I'm trying to use the GT-511C3 in pcDuino however gives me an error, it's something related to "SoftwareSerial.h" apparently is not implemented in pcDuino. Could you recommend something? thanks

Guys, I need help Did you try that? I tried gt511c1 . it wasn't same..

Does anybody know if the templates are repeatable?

For example, if I use the same finger in the same position, will I be able to create multiple identical templates? (REALLY identical, as in template1 = template2).

can i get live image of the finger with this sensor??

help: this C3 support get live image ?????

for those interested, I have two arduino scripts that i have written.... one is already listed here and uses an Arduino Mega via Serial2 and the new one has been tested on a Lilypad and an Uno. The difference between the two is that I am using SoftwareSerial on non-mega boards to communicate with the sensor

Mega - https://github.com/cultcreative/fingerprint_gt511c3 SoftwareSerial - https://github.com/cultcreative/krista_purse_proto/blob/master/krista_finger_lilypad/krista_finger_lilypad.ino

• pictures of the connections will be coming soon to the second one, and note that it also has a servo on it. and you can't write 0x00 to softwareserial, it is changed to (byte)0 around line 400

This sensor works with any pic or pic must be a host because it tried to make it work and I have not gotten'm using a 16F887 pic, the only thing I've accomplished so far is to send basic commands like start the device, turn on the LED but when receiving the data sends the fingerprint can not read because all data send 0x55 for me. I hope your help thank you very much

can i use it in EVM

can i use it as fingerprit sensor in electronic voating machine and how can it start with aurdino and can i use alarm

OK, which is the real baud rate for the GT-511C3, 115200 or 9600? The datasheet says 9600, however, in the video application we can see clearly running with 115200.

OK guys, I´ve seen that there is a lot of people out there struggling with this. I´m PIC user, I like it because it´s very cheap where I live. I like it Arduino too. Nonetheless, I wanna run this attached to a PIC.

First of all let´s start understanding the Protocol and how to send it. When I first read I noticed that part that it´s says Multibyte item is represented as Little Endian, according with some research that I did this mean that I have to send the LSB (Least significant Byte) first. Please, correct me if I´m wrong.

Command Packet (Command)

Command Start
0X55----> TYPE: BYTE 1----> Command Start Code1
0XAA----> TYPE: BYTE 2----> Command Start Code1

DEVICE ID (WORD)
0X01----> TYPE: BYTE 3----> Device ID: default is 0x0001, always fixed
0X00----> TYPE: BYTE 4----> Device ID: default is 0x0001, always fixed

PARAMETER (DWORD). In this case is the Parameter Open
0X00----> TYPE: BYTE 5----> PARAMETER
0X00----> TYPE: BYTE 6----> PARAMETER
0X00----> TYPE: BYTE 7----> PARAMETER
0X01----> TYPE: BYTE 8----> PARAMETER

COMMAND (WORD). OPEN
0X01----> TYPE: BYTE 9----> COMMAND OPEN
0X00----> TYPE: BYTE 10----> COMMAND OPEN

CHECKSUM (WORD). BYTE ADDITION, OFFSET 0 +….+ OFFSET 9
0X01----> TYPE: BYTE 11----> COMMAND OPEN
0X01----> TYPE: BYTE 12----> COMMAND OPEN

Guys, please. If I have a mistake, do not hesitate to point it out.

So far, it seems kind of easy. I haven´t try to program it yet. I´ll try this week. However, I do not yet which functions should I use to use with a PIC.

OK, I will be posting my progress. :dance:

has anyone tried this module using PIC? I know that here is a lot of people how has tried? I just got mine and I want to start. Thank you.

Hi everybody!! I have a question here... So, I can only register 20 people on the device, but up, in the Description area says that it can store up to 200 images. Can someone please clarify this for me? I need this for a project that need to register aproximately 50 people...is it possible with just one device? Thanks a lot!!! :D

Wow. Thank you Josh. I was able to convert the lib to C# in a few hours, and it is up and running.

note sure if i am the only one that couldn't get everything consistently working using of the libraries that are available and the comments below, but i pieced together a combination of what I found in the lib and what is in the comments into a script that is working great for me. Hope this helps

https://github.com/cultcreative/fingerprint_gt511c3

I know this has been asked before, but has anyone been able to get this device to work with a Raspberry Pi using the Python programming language? The RPi GPIO supports UART and there is a Serial library for Python so I assume it wouldn't be that difficult to get this working on the RPi using Python.

Hey Guys!! I have started my senior project and it is about clocking machine that will get fingerprints inputs, compare it to the stored data and if there is a match will display the corresponding name clocking the employee in and releasing a hooked up door for the employee to enter. My questions: What kind of arduino microcontroller should I use along with this fingerprint scanner, a lcd display and what kind of camera? Thank you!!

what does "360° recognition" mean?! it's a planar surface so the max detection angle should be 180°,right?

Guys need help. I cannot run the software on my windows 7 with visual studio 2012. Whats the compiler to run demo software?

is there anyway to waterproof this? for instance, if i wanted to use it to open a car door?

I have purchased this sensor and every thing is working perfect with the library from GitHub, but unfortunately I lost a bet.

The bet was that you cannot fool the sensor if you put your finger in the ink-pad, make a mirror copy of that finger print and print in black and withe on a white paper. Unfortunately the sensor detect that finger. Now I search for a rematch, so my questions are the following: Is it possible to make check for a confidence level when detecting a finger print? Is there a new firmware which can avoid this kind of fooling?

Thank you for support.

The Arduino code posted on GitHub, doesn't seem to work with Arduino Uno when changing;

fps (4,5);

to the tx and rx on the uno;

fps(0, 1);

Am I doing something wrong here?

I am new to this whole area, but learn quickly and have some great ideas. One specifically was using a device like this, a fingerprint scanner, to replace the power button on a PC case mod I am working on. Would it be possible to do this? I've been told it can work, but no successful attempts out there to reference :\

Any ideas?

I seem to be having a moment of stupidity here but can anyone tell me where can the pin diagram be found? On the board all I see is a little triangle on the first pin from left to right with the module facing front: sensor up and connector down. Thanks in advance for the help.

I think supply and communication voltages should be better specified. According to the latest version of the datasheet, GT-511C3_datasheet_V1 1_20130411[4].pdf, the module has an "Operating voltage" in the range 3.3-6V. With just this information one could conclude that the supply and communication voltages are equal and in that range, so this module could be used at both 3.3V and 5V without any level converter. But this may not be the case. Please improve the description on this matter.

EDIT: the datasheet specifies on the last pages the pinout and there it also specifies that supply is 3.3-6V while communication is 3.3V. Also, i measured the idle voltage of the TX pin with 5V supply and it was 3.3V. This confirms such data.

I have completed and tested all of the basic functions of the library that I wrote for this device. I posted all of the details on my blog: http://wordpress.hawleyhosting.com/ramblings/?p=375

What if a fingerprint is left behind on the device? How does it handle that?

I have this working on my Arduino! (using a voltage divider and softwareserial) I have a library completed for this, but it needs cleanup and documentation. I will post it once done. Maybe I could get one of the spark fun people to link to it in the documents above? I will post it in a couple of days.

Do I need a logic level converter(https://www.sparkfun.com/products/8745) to use this on an Arduino? or can I just put a resistor on the TX from the arduino?

Why does this not come with the cable? I just got mine, was all excited to mess with it today, and now I cannot /grumpy

Do you have any experience working the C3 along with microcontrollers? Because I have had a hard time sometimes even communicating with the computer through the MAX232 interface; at least there sometimes it does the functions, just gets lost. But with the microcontrollers I haven't had success trying to use the commands (hex) on the datasheet statements.

Hi , the module can be connected directly to an Arduino pro mini 5v or I need a converter from 5V to 3.3V ? At the end of the datasheet it show that the voltage of Tx and Rx is 3.3V and the main from 3,3v to 6v.

Somebody have experience with this module?

Any idea if it can be used with Raspberry Pi? Any library/sdks?

I bought GT-511C3 sensor and i tried with demo software on PC through a FTDI 5V breakout. when i push Get Image button i got fingerprint and i could save it on PC. But when i tried to enroll first id, i got an error (Sensor ask me to put finger 1, then finger 2, then finger 3 and here i got an error "The enrollment is faild !". Why i got such an error ? Cause may be FTDI 5V breakout ? It is working only with FTDI 3.3V breakout ?

can someone please tell me how to connect the scanner to the FTDI Basic Breakout - 3.3V.

i have the jumper 4 wire assembly but dont know how to connect to the basic breakout 3.3. it seems the breakout has 6 conections.

help!

The documentation says that I/O pins are 3.3v can you confirm that 5v logic levels are safe?

Where can I find any box for that?.

Does it work with the arduino?

Does this only work with Windows using their demo software? Can you write your own code on PC? Could you use it to ID with an Arduino?

How fast does this operate? My problem with fingerprint scanners (I use them on a daily basis) is speed. The ones I use have to be swiped, which doesn't always work, and then there's a lag (probably due to windows). ...Before I buy one of these I want to make sure it'll be nearly instantaneous.