Adafruit fingerprint sensor doesn't start up

Other Hardware Sensors
1

Hello everyone,

I am working on a project where I need to scan the fingerprint of people. I have bought the Adafruit fingerprint sensor (Fingerprint sensor : ID 751 : $49.95 : Adafruit Industries, Unique & fun DIY electronics and kits) but after hooking it up and running some example sketches, it doesn't do anything.

A lot of people seem to have problems with it according to this forum but in the situation they discribe the sensor produces a light. When I run the enroll sketch provided by adafruit, the sensor does not light up. After checking the serial monitor I get the message "Did not find fingerprint sensor :(".

I already checked all the wires if they arent broken and replaced them a couple of times just to be sure, so I don't think it is a hardware problem.

Does anyone else know what might be causing the problem?

2

Did you go through procedure to connect the device to Windows to enroll some users ? link . It could be useful to know if the failure shows only on the Arduino. The wiring is different for Windows !

Are you using an Arduino Uno ?

3

Thanks for the reply,

Yes, I have tried to enroll using the SFG demo but it doesnt make any difference as far as i can tell.
I am indeed using the Arduino Uno.