INTERFACES APPLICATIONS

#define ledpin 13

int readin = 0;
int readval = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(ledpin, OUTPUT);
  digitalWrite(ledpin, HIGH);
  delay(200);
  digitalWrite(ledpin, LOW);
  delay(200);
  digitalWrite(ledpin, HIGH);
  delay(200);
  digitalWrite(ledpin, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (Serial.available() > 0) {
    readin = Serial.parseInt();
    Serial.println("Byte received:");
    Serial.print(readin);
  }

  if (readin == 0)
  {
    digitalWrite(ledpin, HIGH);
  }

  if (readin == 1)
  {
    digitalWrite(ledpin, LOW);
  }

  if (readin == 2)
  {
    digitalWrite(ledpin, HIGH);
    delay(100);
    digitalWrite(ledpin, LOW);
    delay(200);
  }

  if (readin == 3)
  {
    digitalWrite(ledpin, HIGH);
    delay(400);
    digitalWrite(ledpin, LOW);
    delay(400);
  }

  if (readin == 4)
  {
    digitalWrite(ledpin, HIGH);
    delay(1000);
    digitalWrite(ledpin, LOW);
    delay(1000);
  }


}

 if (readin>25){
    for(i=0; i< i++)
  {
    readval = readval * 10 + ( stringval[i] - '0' );
    if (readval>3)
    {
      i++;
    }

// This example shows how to connect to Cayenne using an ESP8266 and send/receive sample data.
// Make sure you install the ESP8266 Board Package via the Arduino IDE Board Manager and select the correct ESP8266 board before compiling. 

//#define CAYENNE_DEBUG
#define CAYENNE_PRINT Serial
#include <CayenneMQTTESP8266.h>

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

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

unsigned long lastMillis = 0;

void setup() {
	Serial.begin(9600);
	Cayenne.begin(username, password, clientID, ssid, wifiPassword);
}

void loop() {
	Cayenne.loop();
}

// Default function for sending sensor data at intervals to Cayenne.
// You can also use functions for specific channels, e.g CAYENNE_OUT(1) for sending channel 1 data.
CAYENNE_OUT_DEFAULT()
{
	// Write data to Cayenne here. This example just sends the current uptime in milliseconds on virtual channel 0.
	Cayenne.virtualWrite(0, millis());
	// Some examples of other functions you can use to send data.
	//Cayenne.celsiusWrite(1, 22.0);
	//Cayenne.luxWrite(2, 700);
	//Cayenne.virtualWrite(3, 50, TYPE_PROXIMITY, UNIT_CENTIMETER);
}

// Default function for processing actuator commands from the Cayenne Dashboard.
// You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands.
CAYENNE_IN_DEFAULT()
{
	CAYENNE_LOG("Channel %u, value %s", request.channel, getValue.asString());
	//Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message");
}