#include <FastLED.h>
#define DATA_PIN 2
#define NUM_LEDS 4
CRGB leds[NUM_LEDS];

#include <U8g2lib.h>
#include <Wire.h>
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void update_oled(String lijn1, String ingetyptecode = "", String trigger = ""){
  u8g2.clearBuffer();
  u8g2.setCursor(0, 15); u8g2.print( lijn1);
  u8g2.setCursor(0, 30); u8g2.print( ingetyptecode);
  u8g2.setCursor(0, 45); u8g2.print( trigger);
  u8g2.sendBuffer();
}
// gebruik pins 4,16-33  16=RX2
int rij[] = {19, 18, 33 , 23};
int kol[] = {16, 4, 32 , 15};

int pin_status_led = 17;
int pin_buzzer = 14;

int pin_panic = 35; //exernal pullup needed
int pin_door = 25;
int pin_window = 26;
int pin_PIR = 27;
int pin_relais = 12;

unsigned long timer_in = 0, timer_out = 0, timer_sir = 0;

String toetsen[4][4] = {{"1", "2", "3", "A"}, {"4", "5", "6", "B"}, {"7", "8", "9", "C"}, {"*", "0", "#", "D"}};
// of char toetsen[4][4] = {{'1','2'..........................

String geheimecode = "1111";
int alarm_status = 0;
String alarm_status_oled[] = {"SYSTEM OFF", "SYSTEM ARMING", "SYSTEM ARMED", "ALARM TRIGGERED", "ALARM"};
String ingetyptecode = "";

int my_sensor_pins[] = {35,25,26,27};
bool last_sensor_state[] = {1,1,1,1}; // opslagen van laatste stautstatus van de sensor, staat initieel op 1 zodat pixels al op groen staan de eerste keer
String my_sensor_names[] = {"PANIC","DOOR","WINDOW","PIR"};

bool force_oled_update = true;
String sensor_triggered = "";



void setup() {
  // put your setup code here, to run once:
  fct_init();
  Serial.print("sensor panic");
  Serial.println(digitalRead(2));
}

void loop() {
  // put your main code here, to run repeatedly:  
  handle_oled();
  scan_keyboard();
  scan_alarm_inputs();
  handle_status_led();
  handle_buzzer();
  handle_relais();
  handle_alarm_states();
  handle_timers();
  delay(10);

}