Stap 8: De definitieve Code
Hieronder is een Arduino-programma dat ik heb geschreven voor dit project de FPS en LCD-bibliotheken gebruiken. Ik heb mijn best gedaan om te schrijven van de opmerkingen in de code om te beschrijven wat elk onderdeel doet, maar als u vragen hebt, voel je vrij om te vragen!
Nadat deze code is geüpload, zou alles moeten werken. Nu alles wat moet worden gedaan om te integreren!
Code:
Code voor ATmega238:
/** *FPSGarageDoorOpenner by Nodcah *Opens a garage door if the scanned fingerprint is in *the FPS' database of prints. * *FPS_GT511C3 library created by Josh Hawley, July 23rd 2013 *Licensed for non-commercial use, must include this license message *basically, Feel free to hack away at it, but just give me credit for my work =) *TLDR; Wil Wheaton's Law * * Version 1.00: Initial release * Version 1.01: Fixed bug with openning the garage door on boot and Attiny timing * Version 1.02: + Made transmission between ATtiny and ATmega timing more reliable (line 115) + Names are now associated with an ID */ #include "LiquidCrystal.h" //for the screen #include "FPS_GT511C3.h" //the fps (fingerprint scanner) library #include "SoftwareSerial.h" //used by fps library //Setting up the pins for the LCD and the fps LiquidCrystal lcd(2, 3, 4, 5, 6, 7, 8); //pinouts for LCD FPS_GT511C3 fps(10, 11); //RX, TX boolean isFinger = false; //true if the fps detects a finger on the scanner //output pins const int buzzerPin = 13; const int backlightPin = 9; const int attinyPin = 12; const String idNames[] = { "self","Bro", "Ryan", "Mom", "Dad", "Auntie", "Grandma", "Zeide", "Person", "person", "Thumb"}; void setup(){ //set outputs pinMode(buzzerPin, OUTPUT); pinMode(backlightPin, OUTPUT); pinMode(attinyPin, OUTPUT); //for debugging //Serial.begin(9600); fps.UseSerialDebug = false; //set to true for fps debugging through serial //initializing the libraries lcd.begin(16,2); digitalWrite(backlightPin, HIGH); //the LCD backlight fps.Open(); fps.SetLED(true); //the fps LED //boot up sound for(int i=0; i<30; i++){ tone(buzzerPin, 50+10*i, 30); delay(30); } tone(buzzerPin, 350); //print starting message lcd.print("Put your finger "); //the command to print to the LCD lcd.setCursor(0, 1); //sets the cursor to the 0th column in the 1st row lcd.print(" on the scanner "); delay(150); noTone(buzzerPin); //stops the startup sound } void loop(){ //scan and identify the finger when one is put on it waitForFinger(); lcd.clear(); //clears the screen and sets the cursor to 0,0 fps.CaptureFinger(false); //captures the finger for identification int id = fps.Identify1_N(); //identifies print and stores the id if(id <= 10){ lcd.print(" Access granted "); //success message lcd.setCursor(0,1); //prints name when the garage is opening String message = " Hey " + idNames[id] + "!"; lcd.print(message); tone(buzzerPin, 262, 1000); delay(1500); //sends a signal to open the garage door digitalWrite(attinyPin, HIGH); //first pulse syncs the delays (10ms) delay(5); digitalWrite(attinyPin, LOW); delay(3); digitalWrite(attinyPin, HIGH); //next two open the garage delay(15); digitalWrite(attinyPin, LOW); delay(5); digitalWrite(attinyPin, HIGH); delay(10); digitalWrite(attinyPin, LOW); delay(1000); lcd.clear(); lcd.print("Don't forget to "); lcd.setCursor(0,1); lcd.print(" shut me off! "); delay(2000); waitForFinger(); //tap to continue to enroll while(true){ //save a new fingerprint //prints message to lcd lcd.clear(); lcd.print(centerText("So you want to")); lcd.setCursor(0,1); lcd.print(centerText("scan a new one?")); delay(2000); //Copied and slightly modified from the enroll example: int enrollid = 11; //choosing which id to overwrite/create //release your finger when you want to write to the id/name printed on the screen waitForFinger(); //waits for the fps to be pressed while(enrollid==11){ for (int i = 1; i<=10; i++){ if((fps.IsPressFinger() == true)){ lcd.clear(); String str = "ID " + String(i) + ": " + idNames[i]; //concats a string w/the id lcd.print(centerText(str)); delay(1000); } else if(i>1){ lcd.print(i); enrollid = i-1; break; } } } //warning if there is already data in this id slot if(fps.CheckEnrolled(enrollid)){ lcd.clear(); lcd.print(" Warning! ID #"); lcd.print(enrollid); lcd.setCursor(0,1); lcd.print(" has data. OK? "); delay(2500); waitForFinger(); //waits for the fps to be pressed fps.DeleteID(enrollid); //delete data delay(100); } //Enroll fps.EnrollStart(enrollid); lcd.clear(); lcd.print("Place finger to "); lcd.setCursor(0,1); lcd.print("enroll #"); lcd.print(enrollid); //prints id that is being enrolled waitForFinger(); //waits for the fps to be pressed //captures the finger and saves to memory three times for accurate data bool bret = fps.CaptureFinger(true); //high quality pic for enrollment int iret = 0; //error stuff if (bret != false){ //first enroll lcd.clear(); lcd.print(" Remove finger "); fps.Enroll1(); while(fps.IsPressFinger() == true) delay(100); //waits until no finger lcd.clear(); lcd.print(" Press again "); waitForFinger(); //waits for the fps to be pressed bret = fps.CaptureFinger(true); if (bret != false){ //second enroll lcd.clear(); lcd.print(" Remove finger "); fps.Enroll2(); while(fps.IsPressFinger() == true) delay(100); lcd.clear(); lcd.print("Press yet again "); waitForFinger(); bret = fps.CaptureFinger(true); if (bret != false){ //third enroll iret = fps.Enroll3(); if (iret == 0){ //checks to see if there are any errors lcd.clear(); lcd.print(" Success! "); delay(2000); beep(); //shuts arduino off } else{ //if the enrollment fails in any way lcd.clear(); lcd.print("Fail. Try again "); delay(1000); } } lcd.clear(); lcd.print(" Failed 3rd "); //error on 3rd delay(1000); } lcd.clear(); lcd.print(" Failed 2nd "); //error on 2nd delay(1000); } lcd.clear(); lcd.print(" Failed 1st "); //error on 1st delay(1000); } } else{ lcd.print("Fingerprint is"); //if print isn't recognized lcd.setCursor(0,1); lcd.print(" unverified "); delay(2000); lcd.clear(); lcd.print("Please try again"); lcd.setCursor(0,1); lcd.print("Use your pointer"); //I scanned everyone's pointer finger delay(500); } delay(250); } void beep(){ //beeps in hopes of someone closing the case lcd.clear(); lcd.print("Please close the"); lcd.setCursor(0,1); lcd.print(" case! "); for(int i=0;i<8;i++){ tone(buzzerPin, 262, 500); delay(1000); } delay(5000); //wait for someone to close the case //if no one does, shut everything off lcd.clear(); digitalWrite(backlightPin, LOW); fps.SetLED(LOW); while(true) delay(10000); } void waitForFinger(){ static int timer; //contains timeout counter timer = 0; //resets the timer everytime this function starts while(!fps.IsPressFinger()){ //timeout of eight seconds timer++; delay(100); if (timer>=80 && !fps.IsPressFinger()){ beep(); } } timer = 0; //resets the timer everytime this function ends } String centerText(String s) { //centers text on the LCD to look better while(16-s.length()>1){ //if the text needs to be centered s = " " + s + " "; //creates space on both sides evenly } return s; }
