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SFG demo error: open device failed, please check the passwor
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SFG demo error: open device failed, please check the passwor

by dkanday on Tue Jun 15, 2021 2:43 pm

Hi There, I am using Audrino Uno and have tried connecting R305 and AS608 fingerprint sensor. When I open the SFGDemo v2 on my windows 10 laptop as an admin. I keep getting the error: open device failed, please check the password and the device address. This is a brand new fingerprint sensors and I have never changed the passwords on them
I have connected the wiring based on the page: https://learn.adafruit.com/adafruit-opt ... th-windows and have also loaded the code to the uno: // this sketch will allow you to bypass the Atmega chip
// and connect the fingerprint sensor directly to the USB/Serial
// chip converter.

// Red connects to +5V
// Black connects to Ground
// White goes to Digital 0
// Green goes to Digital 1

void setup() {}
void loop() {}

I have also checked that I am using the correct com port from the device manager and that is what I selected on the app. also I tried interchnaging the TX and RX pin but none of it helped. Is there anything that I am missing?
How do I fix this issue? Is there a way I can change the passport to the default one?

dkanday
 
Posts: 41
Joined: Mon Jun 07, 2021 4:49 pm

Re: SFG demo error: open device failed, please check the pas

by adafruit_support_carter on Tue Jun 15, 2021 4:38 pm

Please post a photo showing your setup and how all the wiring connections are made.

adafruit_support_carter
 
Posts: 20625
Joined: Tue Nov 29, 2016 2:45 pm

Please be positive and constructive with your questions and comments.