Serial.print Program Lag

Projects Programming
8

Can you tell me what I am missing? It doesn't make any difference if the #define NO_DEBUG is comented out or not, the Serial.prints always execute.

I am obviously missing an important point.

//Libraries
#include <ESP32Time.h>
#include <WiFi.h>
#include <time.h>



//#define NO_DEBUG

#ifndef NO_DEBUG
    #define P(x) Serial.print(F(x))
    #define PL(x) Serial.println(F(x))
    #define PF(...) Serial.printf(__VA_ARGS__)

#else
    #define P(x)
    #define PL(x)
    #define PF(...)
#endif

//Functions
void wifiTime();
void initWiFi();
unsigned long getTime();


// Variables
const char *ntpServer = "pool.ntp.org";
unsigned long epochTime;
bool BST=0;
int triggerClockupdate;
long timer,timer2;

//NTPtime NTPch("ch.pool.ntp.org");   // Choose server pool as required
char *ssid = "Utopia";            // Set you WiFi SSID
char *password = "GillyBob1965";  // Set you WiFi password
bool resetClock = 1;
ESP32Time rtc;



////////////////////////////////////////////////////////
void setup() 
{
  Serial.begin(115200);
  pinMode(LED_BUILTIN, OUTPUT);
  clockSetup();
  triggerClockupdate=rtc.getHour();
}
///////////////////////////////////////////////////////
void loop() 
{

  if (resetClock) {

    clockSetup();
    resetClock = 0;
  }
  Serial.println(rtc.getTime("%A, %B %d %Y %H:%M:%S"));  // (String) returns time with specified format
  Serial.println(rtc.getTime());
  if (abs(triggerClockupdate-rtc.getHour())>=6)
  {
    resetClock = 1;
    triggerClockupdate=rtc.getHour();
  }
  delay(5000);
 
}
////////////////////////////////////////////////////////////
void clockSetup()
{
  
  initWiFi(); 
  long timer = millis();
 
  epochTime = getTime();

  rtc.setTime(epochTime);
  
  BSTUK();
  timer2=millis()-timer;

  Serial.print("Epoch Time: ");
  Serial.println(epochTime);

  Serial.print(timer2);
  Serial.println(" time taken to reset time in milliseconds");
  configTime(3600*BST, 0, ntpServer);// May need amending for BST
  WiFi.disconnect(true);
  if (WiFi.status() != WL_CONNECTED) 
  {
    Serial.println("WiFi disconnected");
  }
}
//////////////////////////////////////////////////////
// Initialize WiFi
void initWiFi() 
{
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi ..");
  while (WiFi.status() != WL_CONNECTED) 
  {    
    digitalWrite(LED_BUILTIN, LOW);
    Serial.print('.');
    delay(250);
    digitalWrite(LED_BUILTIN, HIGH);
    delay(250);
  }
  Serial.println(WiFi.localIP());
}


//////////////////////////////////////////////////////
// getTime() epochTime
unsigned long getTime() 
{
  time_t now;
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) 
  {
    Serial.println("Failed to obtain time");
    return (0);
  }
  time(&now);
  return now;
}


/////////////////////////////////////////////////////////////////
void BSTUK()
{
  
  int year = rtc.getYear();
  rtc.setTime(0, 0, 0, 25, 3, year); 
  int dayOfWeek=int(rtc.getDayofWeek());
  int day=(25+7-dayOfWeek);
  rtc.setTime(0, 0, 0, day, 3, year);
  int springHour = rtc.getDayofYear()*24+1;

  rtc.setTime(0, 0, 0, 25, 10, year); 
  dayOfWeek=int(rtc.getDayofWeek());
  day=(25+7-dayOfWeek);
  rtc.setTime(0, 0, 0, day, 10, year);
  int autumnHour = rtc.getDayofYear()*24+2;

  rtc.setTime(epochTime);
  int nowHour = rtc.getDayofYear()*24+1;
  if (nowHour>springHour && nowHour<autumnHour) // Check for British Summer Time
  {
    BST=1;
  }
  else
  {
    BST=0;
  }

  return;
}