Laboratorium Digital NR05: Membuat Kunci Kode

// RGB-
// NR05
//-------------------------------------------------------------------
// LiquidCrystalRus
#include <LiquidCrystalRus.h>
#include <LineDriver.h>
#include <LiquidCrystalExt.h>
// RGB-
#define red 5
#define blue 6
#define green 9
#define beep 12
// ,
#define NUM_KEYS 5
// ( )
int adcKeyVal[NUM_KEYS] = {30, 150, 360, 535, 760};
///////////////////////////////////////////////////////////
// ,
#define codeLength 6
// , , . codeLength
const int codeOrigin[codeLength] = {1, 2, 3, 4, 5, 3};
// ,
const int unlockTime = 400;
///////////////////////////////////////////////////////////
//
int codePressed[codeLength];
// ( )
int pressCount;
//
unsigned long oldTime;
unsigned long currentTime;
const int timeout = 5; // , .
//-----------------------------------------------------------------------
// , RS,EN,DB4,DB5,DB6,DB7
LiquidCrystalRus lcd(A1, A2, A3, 2, 4, 7);

//-----------------------------------------------------------------------
// 1 Arduino
void setup()
{
// LCD: 16 2
lcd.begin(16, 2);
// ()
// « »
lcd.print(« »);
//
lcd.setCursor(0,1);
lcd.print(«t.: „);
lcd.print(unlockTime);
lcd.print(“ »);
// 2000 = 2
delay(2000);
//
lcd.clear();
//
pressCount = 0;
// « » RGB-
pinMode(red, OUTPUT);
pinMode(blue, OUTPUT);
pinMode(green, OUTPUT);
pinMode(beep, OUTPUT);
}

//-----------------------------------------------------------------------
// setup .

void loop() {
// ( ),
currentTime = millis();
// ,
if (currentTime — oldTime <= timeout*1000){
// key
int key;
// , get_key
key = get_key();
lcd.setCursor(0, 0);
lcd.print(« :»);
//
digitalWrite(blue, HIGH);
if (key > 0){ //
codePressed[pressCount] = key; //
// (50 )
digitalWrite(beep, HIGH);
delay(50);
digitalWrite(beep, LOW);
// ,
lcd.setCursor(pressCount, 1);
lcd.print('*');
digitalWrite(blue, LOW);
delay(200);
digitalWrite(blue, HIGH);
pressCount++; //
//
oldTime = currentTime;
}
}
// ,
else{
pressCount = 0;
lcd.clear();
oldTime = currentTime;
}
// , : codeOrigin codePressed
if (pressCount == codeLength){
int compareResult = 1;
for (int i = 0; i < codeLength; i++)
if (codeOrigin[i] != codePressed[i])
compareResult = 0; //
//
if (compareResult == 1){ //
digitalWrite(blue, LOW);
digitalWrite(green, HIGH);
lcd.setCursor(0, 0);
lcd.print(« „);
delay(unlockTime);
digitalWrite(green, LOW);
pressCount = 0;
delay(1000);
lcd.clear();
digitalWrite(blue, HIGH);
}
//
else {
lcd.setCursor(0, 1);
lcd.print(“ »);
digitalWrite(blue, LOW);
digitalWrite(red, HIGH);
digitalWrite(beep, HIGH);
delay(2000);
pressCount = 0;
lcd.clear();
digitalWrite(beep, LOW);
digitalWrite(blue, HIGH);
digitalWrite(red, LOW);
}
}
}

//-----------------------------------------------------------------------
//
// ,
// ,
int get_key()
{
int input = analogRead(A6);
int k;
for(k = 0; k < NUM_KEYS; k++)
if(input < adcKeyVal[k])
return k + 1;
return 0;
}
//