Stap 2: De Code
I 'm gonna delen van de code meteen tevoren - kopie en plak deze in uw Arduino IDE. Als u niet over de Arduino Software beschikt nog, u kunt het hier downloaden: https://www.arduino.cc/en/Main/Software
#include <Liquid.Crystal.h> #include <EEPROM.h>#include <Servo.h>int address = 0;static unsigned long SaveTimer; static unsigned long SaveDelay = (30 * 1000); char CODE[10] = "123142E"; //change password here char Str[10]; char CodeLength = 6;int Pos = 0;bool Unlocked;static unsigned long DisplayTimer; static unsigned long DisplayDelay = 200;LiquidCrystal lcd(12, 11, 9, 8, 7, 6); int buttonPin1 = 2; int buttonPin2 = 3;int buttonPin3 = 4;int buttonPin4 = 5;int enterbutton = 10; int clearlockbutton = 13;Servo myServo; void setup() { myServo.attach(A1); Lock(); int EEPROMCodeOK = true; for (Pos = 0; Pos <= (CodeLength); Pos++) { Str[Pos] = EEPROM.read(Pos); if (!(strrchr("1123456789", Str[Pos]))) { // not a valid code EEPROMCodeOK = false; } } Pos++; Str[Pos] = EEPROM.read(Pos); if (Str[CodeLength + 1] != 'E') EEPROMCodeOK = false; if (EEPROMCodeOK) { Str[CodeLength + 2] = '\0'; strncpy(CODE, Str, CodeLength + 1); } ClearCode(); pinMode(buttonPin1, INPUT_PULLUP); pinMode(buttonPin2, INPUT_PULLUP); pinMode(buttonPin3, INPUT_PULLUP); pinMode(buttonPin4, INPUT_PULLUP); pinMode(enterbutton, INPUT_PULLUP); pinMode(clearlockbutton, INPUT_PULLUP); lcd.begin(16, 2); lcd.setCursor(0, 0); lcd.print("Hello."); delay(2000); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Password:"); DisplayTimer = millis() + 200;}void loop() { Lock(); Pos = constrain(Pos, 0, CodeLength); int buttonState1 = digitalRead(buttonPin1); int buttonState2 = digitalRead(buttonPin2); int buttonState3 = digitalRead(buttonPin3); int buttonState4 = digitalRead(buttonPin4); int clButtonState = digitalRead(clearlockbutton); int enterButtonState = digitalRead(enterbutton); lcd.setCursor(9, 0); if (buttonState1 == LOW) { Str[Pos] = '1'; Pos++; Str[Pos] = '\0'; delay(250); while (digitalRead(buttonPin1) == LOW); } else if (buttonState2 == LOW) { Str[Pos] = '2'; Pos++; Str[Pos] = '\0'; delay(250); while (digitalRead(buttonPin2) == LOW); } else if (buttonState3 == LOW) { Str[Pos] = '3'; Pos++; Str[Pos] = '\0'; delay(250); while (digitalRead(buttonPin3) == LOW); } else if (buttonState4 == LOW) { Str[Pos] = '4'; Pos++; Str[Pos] = '\0'; delay(250); while (digitalRead(buttonPin4) == LOW); } else if (enterButtonState == LOW) { Str[Pos] = 'E'; Pos++; Str[Pos] = '\0'; delay(250); lcd.setCursor(15, 0); lcd.print("E"); delay(400); lcd.setCursor(15, 0); lcd.print(" "); while (digitalRead(buttonPin1) == LOW); if (strcmp (Str,CODE) == 0) { Unlocked = true; lcd.setCursor(0, 0); lcd.print(" Access Granted"); delay(2000); lcd.clear(); lcd.print(" Unlocked"); } else { lcd.clear(); lcd.print(" Access Denied."); delay(2000); lcd.clear(); lcd.print("Password:"); } while (Unlocked) { Unlock(); if (digitalRead(clearlockbutton) == LOW) { delay(200); lcd.clear(); lcd.print(" Locked"); delay(2000); lcd.clear(); Unlocked = false; SaveTimer = millis() + 30000; } } ClearCode(); } else if (clButtonState == LOW) { delay(500); while (clearlockbutton == LOW); if ((millis() - SaveTimer) > 4500) { } ClearCode(); } if ( (long)( millis() - DisplayTimer ) >= 0) { DisplayTimer += DisplayDelay; lcd.setCursor(9, 0); lcd.print(Str); lcd.setCursor(15, 0); lcd.print(" "); if (clButtonState == LOW) { lcd.clear(); lcd.print("Password:"); } }}void ClearCode() { Pos = 0; Str[Pos] = '\0'; lcd.setCursor(0, 0); lcd.print("Password:"); lcd.setCursor(0, 1); lcd.print(" ");}void Unlock() { myServo.write(117);}void Lock() { myServo.write(26);}
