/*
### Charlieplexing Simple Clock

Author: Martin Ponson
Version: 1.0 (October 2023)

Base code by: plouc68000
Source: https://projecthub.arduino.cc/plouc68000/simplest-uno-digital-clock-ever-03c185

*/

// Initial time display is 12:59:45 PM
int h = 12;
int m = 59;
int s = 45;
int d = 1; // PM

// Time Set Buttons
int button1;
int button2;

// Pins definition for Time Set Buttons
int hs = A1;// pin A1 for Hours Setting
int ms = A2;// pin A2 for Minutes Setting

// For accurate time reading, use Arduino Real Time Clock (RTC) and not just delay()
static uint32_t last_time, now = 0; // RTC

void setup() {
  pinMode(hs,INPUT); // Button 1
  pinMode(ms,INPUT); // Button 2
}

void loop() {
  // Show initial time >>> LED mapping NEEDED!
  


  // improved replacement of delay(1000) 
  // Much better accuracy, no more dependant of loop execution time
  for (int i=0; i<5; i++) // make 5 time 200ms loop, for faster Button response
  {

    while ((now - last_time) < 200) // delay200ms
    { 
      now = millis(); // millis overflows after ~50 days >>> possible PROBLEM?
    }

    // inner 200ms loop
    last_time = now; // prepare for next loop 

    // Button control and time setting

    // Block frequency
    for (int j=0; j<; j++) {

      // LED phase frequency
      for (int k=0; k<; k++) {

      }

    }


  }

  // outer 1000ms loop
  s = s + 1; // Add 1 second, increment sec. counting
    
  // manage seconds, minutes, hours am/pm overflow
  if(s == 60){
    s = 0;
    m = m + 1;
  }
  if(m == 60){
    m = 0;
    h = h + 1;
  }
  if(h == 13){
    h = 1;
    d = d + 1;
    if(d == 2){
      d = 0;
    } 
  } 

// loop end
}