What i have so far, am stuck though,
// Project Awesome. Code Entry With Four Buttons
int y = 0; // Set y
int x = 0; // Set x
int ledOne = 13; //Set Red LED
int ledTwo = 12; //Set Green LED
byte buttons[] = {2,3,4,5,6,7,8,9,10}; //Set buttons to array
byte pass[] = {2}; // Set password
byte attempt[1]; // Set attempts array
byte state[9]; // Make states array
byte oldstate[9]; // When button is hit, info added here
int time = 0;
void setup(){
pinMode(ledOne, OUTPUT);
pinMode(ledTwo, OUTPUT);
for(x=0; x<9; x++){
pinMode(buttons[x], INPUT);
}
}
void loop(){
for(x=0; x<9; x++){
state[x] = digitalRead(buttons[x]); // Check states of each button
}
for(x=0; x<9; x++){
if(state //...
}
for(x=0; x<1; x++){
if(attempt[0] == pass[0]){
Correct();
}
}
if(attempt[0] != pass[0] && (millis() - time) > 5000){
TimeOut();
}
for(x=0; x<9; x++){
oldstate[x] = state[x];
}
}
void Correct(){
digitalWrite(ledOne, LOW);
digitalWrite(ledTwo, HIGH);
}
void TimeOut(){
digitalWrite(ledTwo, LOW);
digitalWrite(ledOne, HIGH);
}