conversion.cpp

#include "conversion.hpp"

unsigned long bufferToLong(byte* buffer, int start) {
  unsigned long result = (unsigned long) buffer[start] 
                                    |  (unsigned long) buffer[start + 1]  << 8
                                    |  (unsigned long) buffer[start + 2]  << 16
                                    |  (unsigned long) buffer[start + 3]  << 24;
  return result;
}       

void longToBuffer(byte* buffer, unsigned long value, int start) {
  buffer[start] = value;
  buffer[start + 1] = value >> 8;
  buffer[start + 2] = value >> 16;
  buffer[start + 3] = value >> 24; 
}

String longToTime(unsigned long convertTime) {
  convertTime /= 60;
  unsigned long hours = convertTime / 60;
  unsigned long minutes = convertTime % 60;
  String hoursS = String(hours);
  String minutesS = String(minutes);
  if (hoursS.length() == 1)
    hoursS = "0" + hoursS;

  if (minutesS.length() == 1) 
    minutesS = "0" + minutesS;
    
  String result =  hoursS + ":" + minutesS;

  return result;
}