Lighting control

#define CAYENNE_PRINT Serial
#include <CayenneMQTTESP8266.h>

// WiFi network info.
char ssid[] = "ssid";
char wifiPassword[] = "password";

// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
char username[] = "username";
char password[] = "password";
char clientID[] = "clientID";

unsigned long lastMillis = 0;

int led=LOW;

void setup() {
	Serial.begin(9600);
	Cayenne.begin(username, password, clientID, ssid, wifiPassword);
  pinMode(4, INPUT);   // button
  pinMode(5, OUTPUT); // LED or relay
}

void loop() {
	Cayenne.loop();

	if (millis() - lastMillis > 100) {
		lastMillis = millis();
		Cayenne.virtualWrite(0, lastMillis);
		}

   if(digitalRead(4)==HIGH && led==LOW)
  {
    digitalWrite(5, HIGH);
    led=HIGH;
    Cayenne.virtualWrite(1,"1");
    while(digitalRead(4)==HIGH)
    {
      delay(10);
    }
  }
  
  if(digitalRead(4)==HIGH && led==HIGH)
  {
    digitalWrite(5, LOW);
    led=LOW;
    Cayenne.virtualWrite(1,"0");
    while(digitalRead(4)==HIGH)
    {
      delay(10);
    }
  }
}


CAYENNE_IN_DEFAULT()
{
	CAYENNE_LOG("CAYENNE_IN_DEFAULT(%u) - %s, %s", request.channel, getValue.getId(), getValue.asString());

  if (request.channel = 1)
  {
    String value;
    value = (String)getValue.asString();

    if (value == "1")
    {
      digitalWrite(5, HIGH);
      led=HIGH;
    }
    else
    {
      digitalWrite(5, LOW);
      led=LOW;
    }
  }
}