Current Relay On/Off Status- In App Button

[PeteKnight]

@Taymar16

  timer.setInterval(1000L, TDSValues);
  timer.setInterval(1000L, DHT22Values);
  timer.setInterval(1000L, Liquidlevelvalues);
  timer.setInterval(1000L, LCDPrintValues);
  timer.setInterval(1000L, VirtualPins);
  timer.setInterval(1000L, digitalClockDisplay);
  timer.setInterval(1000L, Temprequest);
  timer.setInterval(500L, alarmdelay);

It’s not a good idea having all of your timers being called at exactly the same time. Your board isn’t capable of multi tasking, so you’re effectively queueing all of these tasks one after another. BlynkTimer will drop incomplete tasks in some situations when you do this.

See the “Staggering Timers” section of this tutorial for info on potential solutions…

Using BlynkTimer or SimpleTimer

Many users seem to struggle with the basic concepts of using BlynkTimer in their projects, despite the excellent discussions and tutorials that exist on this forum, so I thought I’d write a guide that will hopefully help clarify things. It’s rather long, as it attempts to explain the reasoning behind why and how we use timers, and covers some more advanced subjects, but I’ve tried to organise it in a way that helps people to find answers to specific questions… Why use a timer at all? Let’s say …

Also, I’d be inclined to add these virtualWrites into the functions that take the various readings rather than having this timed function…

@Taymar16

void VirtualPins() {
  Blynk.virtualWrite(V0, liquidLevel);                            //water level vpin
  Blynk.virtualWrite(V1, tdsValue);                               //tds vpin
  Blynk.virtualWrite(V3, temp);                                   //aTemp vpin
  Blynk.virtualWrite(V2, hum);                                    //humidity vpin
  Blynk.virtualWrite(V4, sensors.getTempCByIndex(0) * 1.8 + 32);  //wtemp vpin
  Blynk.virtualWrite(V10, rawLiquidReading);                      //humidity vpin
}

@Taymar16

the virtual buttons where they will turn the Lights and Pumps ON/OFF when toggled but fail to show the status when the Light and Pump turn ON/OFF via the alarms in the sketch

That’s because the functions called by your alarms don’t have any code in them to update the button statuses.
For example this….

@Taymar16

void LightsOn() {
  Serial.println("Alarm: - turn lights On");
  digitalWrite(Light, HIGH);
}

Should probably look something like this…

void LightsOn() {
  Serial.println("Alarm: - turn lights On");
  digitalWrite(Light, HIGH);
  Blynk.virtualWrite(V5, 1); // update the Light button widget
}

Pete.