Door bell problem

Need Help With My Project
1

Ciao ragazzi ho un problema grosso utilizzando questo codice e facendo la prova collegando il pin 2 al gnd ad un pulsante la notifica arriva ma quando provo 2 o 3 volte l’arduino di blocca e mi risulta offline. quindi devo riavviarlo. come mai? dove sbaglio. grazie

Hello guys I have a big problem using this code and doing the test connecting pin 2 to GND to a notification button comes But when I try 2 or 3 times the LOCK Arduino and I know offline. so I have to restart it. Why? where I’m wrong. Thank you

#define BLYNK_PRINT Serial
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "xxxxxx";

void notifyOnButtonPress()
{
  // Invert state, since button is "Active LOW"
  int isButtonPressed = !digitalRead(2);
  if (isButtonPressed) {
    Serial.println("Button is pressed.");

    // Note:
    //   We allow 1 notification per 15 seconds for now.
    Blynk.notify("Yaaay... button is pressed!");
  }
}

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth);

  while (Blynk.connect() == false) {
    // Wait until connected
  }

  // Setup notification button on pin 2
  pinMode(2, INPUT_PULLUP);
  // Attach pin 2 interrupt to our handler
  attachInterrupt(digitalPinToInterrupt(2), notifyOnButtonPress, CHANGE);
}

void loop()
{
  Blynk.run();
}
2

un altro problema è che quando aziono un altro relay una tapparella o una luce, l impulso fa attivare la notifica. non ci sto capendo piu nulla. aiutatemi perfavore.

another problem is that when I trigger another relay rolling shutter or light, the pulse does activate the notification. I’m not understanding anything more. help me please let

3

It probably has to do with the fact that you don’t do any debouncing as they call it. Sometimes interference can trigger pins or act up really weird. I can highly recommend using a capacitor to make a debounce for your physical doorbell button. For example this:

It requires a capacitor and a resistor, very easy to build as you can see. After that you can set the interrupt routine on FALLING or RISING, not CHANGE. That will trigger a lot of noise in the setup you’ve built.