WiFiThermostat/src/scheduler.ino

void checkMillis()
{
  if ((millis() - lastRun) >= 100)
  {
    lastRun = millis();
    every100ms();
  }
}

void every100ms()
{
  if (count100ms < 10)
    count100ms++;
  else
  {
    count100ms = 0;
    everySecond();
  }
  //checkSaveConfigTriggered();
}

void everySecond()
{
  if (countSeconds < 60)
    countSeconds++;
  else
  {
    countSeconds = 0;
    everyMinute();
  }

  confChangedLogNote(false); // only outputs once if false and only if config is not saved

  //webSocket.sendTXT(num, "Test\n");
  // if(confWeb.enableConsole && webSocket.connectedClients() > 0) {
  //   char buf[40];
  //   sprintf(buf, "%u\n", millis());
  //   webSocket.broadcastTXT(buf);
  // }

  handleDisplayTimeout();
  checkValuesChanged();
  if (sysInfoEverySecond)
    logSysdata();

#ifdef ENABLE_FEATURE_WEB_CONSOLE_WEBSOCKETS
  clearValidSessionId();
#endif

  if (countMeasureInterval < confBas.measureInterval)
    countMeasureInterval++;
  else
  {
    countMeasureInterval = 0;
    measureTempHum();
    thermostat();
  }

  if (countDisplayInterval < confBas.displayInterval)
    countDisplayInterval++;
  else
  {
    countDisplayInterval = 0;
    updateDisplay();
  }

  if (doRestart)
    restart();

  if (configChangedMqttConnResetRequired && !confCheckUnsaved())
  {
    configChangedMqttConnResetRequired = false;
    mqttResetConnection();
  }

  if ((millis() - pendingRestart_lastMillis) > 3000)
    pendingRestart = false;

  //  if ( preset != pendingPreset) {
  //    if ( (millis() - pendingPreset_millis) > pendingPreset_timeout ) {
  //      preset = pendingPreset;
  //    }
  //  }
}

unsigned int outPubInterval_states_count = 0;
unsigned int outPubInterval_sensors_count = 0;

void everyMinute()
{
#ifdef ENABLE_FEATURE_NTP_TIME
  if (confTime.ntpEnable)
  {
    syncClock();
  }
#endif

  logSysdata();

  confChangedLogNote(true);
  
  if (confMqtt.mqtt_enable)
  {

    if (!confMqtt.mqtt_willRetain)
      mqttPublishConnectMsg();

    mqttPublishStatus();

    if (confMqtt.mqtt_enable_heartbeat)
      mqttPublishHeartbeat();

    if (confMqtt.mqtt_outPubInterval > 0 && outPubInterval_states_count >= confMqtt.mqtt_outPubInterval)
    {
      outPubInterval_states_count = 0;
      publishCurrentThermostatValues(true); // true forces publishing
    }
    else
    {
      outPubInterval_states_count++;
      publishCurrentThermostatValues(false); // false publishes only changed values
    }

    if (confMqtt.mqtt_outPubInterval_sensors > 0 && outPubInterval_sensors_count >= confMqtt.mqtt_outPubInterval_sensors)
    {
      outPubInterval_sensors_count = 0;
      publishCurrentSensorValues(true); // true forces publishing
    }
    else
    {
      outPubInterval_sensors_count++;
      publishCurrentSensorValues(false); // false publishes only changed values
    }
  }
}