NODE MCU + IR SEND help

Need Help With My Project
1

Hi all,
I’m a beginner in Blynk work but I’m very passionate on IOT project.
I’m working on a personal project to manage some led in living room + get some extra stuff like degree.

BACKGROUND:
Chipset: NODE MCU 1.0
IDE: arduino IDE
Library: I’m using this library for IR: <IRremoteESP8266.h>
Cable will be connected to PIN 4

GOAL:
I want create a button in Blynk App. This botton have to send via IR a code to my LED replacing the remote control.

PROBLEM:
I don’t know understand how to set up it correctly.

This is the code (sorry you can find extra stuff to manage the rest of the project.Everythink is commented. I don’t know how to put this
irsend.sendNEC(0xF7C03F,32);

in a button in Blynk.

//SET UP NODEMCU
//SWICHER RELAY --> everythink Virtual --> Output D5 1 -> 0 SWITCH
//DTT22 -->           --> data on TX
//

// Blink
#define BLYNK_PRINT Serial    // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SimpleTimer.h>

// IR remote
#include <IRremoteESP8266.h>


// DHT 22
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>
#define DHTPIN            1   //Connesso a TX x sensore DHT22
#define DHTTYPE           DHT22
DHT_Unified dht(DHTPIN, DHTTYPE);




char auth[] = "XXXXXXXXXXXXXXXXXXXXXXXXXX";

SimpleTimer timer;

IRsend irsend(4); //an IR emitter led is connected to GPIO pin 4

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, "YYYY", "ZZZZZ");

  dht.begin();
  // Setup a function to be called every second
  timer.setInterval(5000L, sendUptime);
}
void sendUptime()
{
  // V1 degrees
  Blynk.virtualWrite(V5, millis() / 1000);
  sensors_event_t event;  
  dht.temperature().getEvent(&event);
  if (!isnan(event.temperature)) {
    Blynk.virtualWrite(V1, event.temperature);
  }
  // V2 humidity
  dht.humidity().getEvent(&event);
  if (!isnan(event.relative_humidity)) {
    Blynk.virtualWrite(V2, event.relative_humidity);
  }
}

void loop()
{
  Blynk.run();
  timer.run();

  //SEND IR
  irsend.sendNEC(0xF7C03F,32);
  delay(10000);
}

Thank you in advance for supporting me

2

http://community.blynk.cc/t/10000

3

ok thank you for the link but it doesn’t helping me to fix this. I try to find solution by my self looking in Google and into the forum;
Is there anyone can help me?

best

4

ok I got an update in my sketch I tested it stand alone and is working well.
if connected in blynk it doesn’t work. this is the updated code. I think there is somethink wrong in virtual button 3.
where I’m wrong?

//SET UP NODEMCU
//SWICHER RELAY --> everythink Vurtual --> Output D5 1 -> 0 SWITCH
//DTT22 -->           --> data on TX
//

// Blink
#define BLYNK_PRINT Serial    // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SimpleTimer.h>

// IR remote
#include <IRremoteESP8266.h>


// DHT 22
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>
#define DHTPIN            1   //Connesso a TX x sensore DHT22
#define DHTTYPE           DHT22
DHT_Unified dht(DHTPIN, DHTTYPE);




char auth[] = "yyyyyyy";

SimpleTimer timer;

IRsend irsend(0); ///an IR led is connected to GPIO --> D4


void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, "xxx", "xxx");
 //Blynk.begin(auth, "xxx", "xxx");

  dht.begin();
  // Setup a function to be called every second
  timer.setInterval(5000L, sendUptime);
}
void sendUptime()
{
  // V1 degrees
  Blynk.virtualWrite(V5, millis() / 1000);
  sensors_event_t event;  
  dht.temperature().getEvent(&event);
  if (!isnan(event.temperature)) {
    Blynk.virtualWrite(V1, event.temperature);
  }
  // V2 humidity
  dht.humidity().getEvent(&event);
  if (!isnan(event.relative_humidity)) {
    Blynk.virtualWrite(V2, event.relative_humidity);
  }
}

  //Bottone IR
BLYNK_WRITE(V3) 
{
    if (param.asInt()) {
        //HIGH
        irsend.sendNEC(0xF7C03F,32);
        
    } 
}



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