it is always "Open Device Fail! Please check the password and device address!". We will first design a code in Lab View for successfully running of finger print attendance system. now after that i also tried a simple "enroll" sample code from Adafruit Github Fingerprint Library, i uploaded it to my both Arduino Uno, and it works, i can enroll and match.īut the SFG Demo is NOT working.i wonder what should i do to work it. The R307 fingerprint module has interface TTL UART and USB2.0, USB2.0 interface can be connected to the computer RS232 interface is a TTL stage, the default baud rate is 57600, can be modified. again my com is COM8 and i even try my other arduino and usb port(COM 6) also error. the huge decrease in the Sfg Demo Fingerprint Software - DOWNLOAD - urllio. now this is where the problem comes in-there is an error that i should check the device address. Here is an implementation of fingerprint sensor interface with Arduino Uno. but it is starting to get lag for 2-3seconds then a pop up "Open Device Fail! please check the password and device address!". The easiest way to enroll a new fingerprint is to use the Windows software. in the first tutorial, i should first upload a Blank Sketch, then open SFG Demo software, then click Open Device and find the correct COM.which in my case is COM8. Scenario: According to a Udemy Lesson, i can use SFG Demo and use Arduino Uno to enroll a fingerprint with R307.
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