I'm trying to install the library for the GT511C3 fingerprint sensor at the link GitHub - sparkfun/Fingerprint_Scanner-TTL: Repository with example code for SEN-14585 & SEN-14585 at SparkFun.com I downloaded it and unzipped the file no problem. But when I go sketch< include library< manage libraries..., and try to search for the file, it doesn't exist. So then I go sketch< include library< Add .Zip library...., find the zip file and open it I get the error message at the bottom of the screen "Specified folder/zip file does not contain a valid library". Noone else has had this problem with this library that I can find. Any help would be appreciated or even a link to another library for the same sensor.
The Sketch > Include Library > Add ZIP Library installation method requires that the library be located in the root of the .zip file. Unfortunately that is not the case here so you will need to do a manual installation:
- Copy the folder FPS_GT511C3 from the downloaded file to the libraries subfolder of your sketchbook folder. You can find/change the location of your sketchbook folder in the Arduino IDE at File > Preferences > Sketchbook location.
- Restart the Arduino IDE if it's running.
I tried exactly what you said, and I managed to open up the library in the arduino IDE. But then I got this error.
C:\Users\Clayton\Documents\Arduino\Fingerprint_Scanner-TTL-master\Fingerprint_Scanner-TTL-master\FPS_GT511C3\Examples\FPS_Blink\FPS_Blink.ino:20:25: fatal error: FPS_GT511C3.h: No such file or directory
#include "FPS_GT511C3.h"
^
compilation terminated.
exit status 1
Error compiling for board Arduino/Genuino Uno.
Works for me. Please verify that the file exists {sketchbook folder}\libraries\FPS_GT511C3\FPS_GT511C3.h. If not you didn't properly follow my instructions.