Using a LCD, Keypad, and Adafruit fingerprint sensor together

Projects General Guidance
1

Hello all. I know this program has come up multiple times, but I have not found the answer I need yet. I am trying to do the whole "attendance" thing. I can get the keypad and LCD screen to work together, but I cannot get the FP sensor to initialize after the correct codes have been input on the keypad. Each code is supposed to correspond with one fingerprint. I'm not sure what to do, but attached is the code I have so far that will verify. I appreciate any help that I can receive. Thanks for your time.

Capstone1.ino (3.83 KB)

2 
    if (count==9)
    {
      Serial.print(ident);
      Serial.print("\t count=");
      Serial.println(count);

If 9 keys have been pressed, BUT ONLY IF A KEY IS PRESSED, execute the rest of the code in loop(). Does that make sense?

}


  
}
}

That certainly doesn't.

Use Tools + Auto Format BEFORE posting code.

3

I will remember to auto format next time, my apologies. The code is supposed to be specific to the GUID. After inputting your 8 numbers, i.e. "12345678", you then press #. Those are the 9 keys. And yes, I only want the code to continue if a key is pressed. The system will otherwise stay in an "idle" state if you will, waiting for someone to begin inputting their GUID. If it doesn't make sense, again I apologize. Do you know how to have the fingerprint sensor initialize after the 9th key is pressed? I've tried a lot of different methods, but have not been successful, unfortunately. I reattached the code, formatted this time. Thanks.

Capstone1.ino (3.74 KB)