I am currently working on R305 Fingerprint Module. I have used this module and some other fingerprint modules like R301T and FPM10A for different projects. But this time I have a new requirement. I want to download fingerprint image (bitmap) from sensor to my PC. So I used pyFingerprint, a Python library to interact with R305 fingerprint module using UART protocol.

Now problem is UART (TTL) communication is very slow when it comes to transfer fingerprint image to PC, a lot of bits, and max baudrate for UART of R305 module is 115200 bps. So it takes about 4 to 5 seconds to transfer fingerprint image from sensor to my computer (e.g. on Desktop). It is way too slow for real-time applications where you want fingerprint image within no time.


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I want to interface this R305 fingerprint module directly with USB interface without any USB to TTL converter attached on UART (Tx, Rx) of the module. So that I can download/transfer fingerprint image at faster transfer speed (using USB). I read the documentation of this Module and it says that this module supports two types of communication protocols (USB and UART). See this image . So I solder one end of a simple USB cable to USB port of the module (VCC D- D+ GND) and plug the USB cable's other end to PC. Now the module is showing as CD-ROM in PC. In Device Manager it is showing name as "Finger Module". Now How can I interface with the module??? I have searched a lot and there is no Software available for this USB interface. Please help me about this..

My fingerprint scanner also stopped working. No issues with the passcodes. Custer support was no help because its beyond the warranty date. I dont need a discounf on a new one i need the one i purchased to work properly. If so many people are having the same issue it must be some sort of defect. Has anyone been able to fix theirs?

If your fingerprint sensor light was off when pressing your finger on it, please check the wire and carefully reconnect the connector between the Interior Assembly and the Exterior Assembly. Guide to Disconnect/Reconnect the Keypad Wire

Hello, i just bought this fingerprint module. I'm using arduino uno and library from adafruit fingerprint and uploaded the example enroll sketch. But my problem is my fingerprint module doesn't detected in program.

Do you know how much current draw your fingerprint module requires? The 3.3vdc on your Arduino comes from a built in regulator in the FTDI chip and is pretty limited in current, 40-50ma I think. If would be pretty simple to wire up an external 3.3vdc regulator chip and feed it +5vdc from the Arduino board, that should give you a couple of hundred ma or so.

Do you a link to a datasheet for the fingerprint module? It may work with two 1.5v batteries, but would have to see it's specifications. You would also have to wire the module and batteries ground to the Arduino ground. Then you would have to find out if the module was '5 volt tolerant" or not as the Arduino serial output is a 5vdc logic signal.

As I read the .pdf about the device, it says that the interface to whatever is "talking" to the device is happy with TTL, so I wouldn't mind connecting 5v THERE (to the input). And I'd expect it to "drive" a 5v input on something the fingerprint reader's output was "feeding".... BUT that's very DIFFERENT from saying that the device will be happy with 5v for Vcc, i.e. attached to pin 1... isn't it, experts?

Do you need to do EVERYTHING via Arduino? Unless you have frequent changes of authorized users, it might pay you to use the vendor supplied app (is there one?) for registering fingerprints, setting security options, etc, and have the Arduino just capable of basic things like "pass/fail" checks of access attempts.

Fingerprint scanners are awesome! Why use a key when you have one right at the tip of your finger? Unfortunately, they're often unreliable or difficult to implement. Well not anymore! This great GT-521F32 fingerprint module from ADH-Tech communicates over TTL Serial so you can easily embed it into your next project. The module itself does all of the heavy lifting behind reading and identifying the fingerprints with an onboard optical sensor and 32-bit ARM Cortex M3 processor.

To get started, just register each fingerprint that you want to store by sending the corresponding command and pressing your finger against the reader three times. The fingerprint scanner can store different fingerprints, and the database of prints can even be downloaded from the unit and distributed to other modules. In addition to the fingerprint "template," the analyzed version of the print, you can retrieve the image of a fingerprint and even pull raw images from the optical sensor!

This module is the economical version of the GT-521F52 and can store up to 200 different fingerprints. It is capable of 360 fingerprint recognition and download/upload templates using serial interface. Additionally, the GT-521Fxx series features a resolution of 450dpi, with a false acceptance rate of

The module is small and easy to mount using four mounting holes surrounding the sensor. The onboard JST-SH connector has four signals: Vcc, GND, Tx and Rx. A compatible JST-SH pigtail can be found in the Hookup Accessories section below.

Note: Please be aware that even though this fingerprint scanner is equipped with the same connector we use on all of our Qwiic boards, it is NOT Qwiic or I2C compatible. That being said, all of our Qwiic cables, like our 100mm version, will work for this board.

I probably missed it or it's assumed and stupid to ask, but ... what memory type stores fingerprints? Do I need to re-enroll all the fingerprints after power shutdown? ThanksUPDATE: It does ... found it on your great youtube video :) =PPNoO5uaUhM

Clarification, in case the following is an issue for anyone: First- YES, it remembers the "fingerprints" you asked it to, even across the power going off and then on again. BUT: It is NOT storing images of the fingerprint. It does a mathematical thing when you show it a fingerprint, and it remember the result of that. When you later show it a new fingerprint scan, and ask "do you know this?", it does the mathematical thing again, and checks the answer obtained from the new scan to the answers from old scans. It only stores the answer from the "thing".... BUT, BUT.... Yes: It CAN "give you" a copy of a scan, a copy of the raw image, as captured. (Being able to see the raw images is very useful when you are learning how to "do it".) And you can save that. But the device is not storing the fingerprints, in their raw form.

My son just started 7th grade STEM. In the second week of school, they were asked to redesign a product to make it simpler or better. He chose to make a fingerprint ID padlock. Without much experience in electronics, he was able to follow the tutorial for this fingerprint scanner and connect it to his Redboard that he got last Christmas. He added a servo and within a couple of hours he was able to make a working prototype that would automatically lock the shackle and unlock only with a recognized print - A+ all the way!

The fingerprint scanner works great! I am using it with the 5 volt pro micro with a level translator and an extra power supply to convert 5 volt to 3.3 volts. I would recommend getting the 3.3 volt pro micro and you wouldn't have to do any level translation that way.

I started building a Nerf gun armory that was fingerprint locked for my boys with the Adafruit scanner and results were very spotty. It worked okay, but sometimes took a frustrating amount of scans before working. Nothing against that product, I probably don't have the coding clout to really dive in and tweak it. I switched over to this and it seems much more reliable (or at least simplified). Only difference between the two is that this one required the logic level converter where as the other did not.

I'm trying to use Adafruit fingerprint sensor with CC3200 LaunchPad. But i'm not sure how to connect and communicate over TTL communication. I checked UART_Demo application and noticed it has configured pin 55 and 57 as Tx and Rx(Even though it is not using in the demo program), My question is, can i use the same pin configuration? If so how can i set the baud rate for the serial communication and send commands to operate? Btw i'm using CCS to work with this.

I got it working with Arduino by sending serial commands to fingerprint module and successfully operated it. And I must say i'm totally noob to CC3200 LaunchPad and i'm coming from Arduino and PIC programming background.

Hi Markel, Thanks for the response. You are right, I can't use pin 55 and 57 if i wish to debug the code via Teraterm at the same time. Also I just figured out that there's a tool to configure UART pins called "TI PinMux", I can configure any available two pins as UART1 from that tool. But my question is how to set the baud rate to match my fingerprint sensor? at the moment it is 57600.

This capacitive fingerprint sensor supports fingerprint capture, image processing, fingerprint storage, fingerprint comparison, and so on. Taking ID809 high-performance processor and semiconductor fingerprint sensor as the core, the sensor adopts built-in IDfinger6.0 algorithm, which can complete all fingerprint identification work independently. The product supports UART communication. When working with the Arduino library, it can easily realize functions like fingerprint registration, fingerprint deletion, etc. Also, we provide upper computer software that helps users to operate this sensor.

Fingerprint sensor modules, like the one in the following figure, made fingerprint recognition more accessible and easy to add to your projects. This means that is is super easy to make fingerprint collection, registration, comparison and search. 17dc91bb1f

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