Arduino

BlynkSimpleEsp8266

Sketch > Include Library > Manage Libraries      [Wait for the download to finish]
In the "Filter your search" field, type "blynk". [Press Enter]
Click on "Blynk by Volodymyr Shymanskyy".
Click the "Install" button.                      [Wait for the installation to finish]
Click the "Close" button.

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

char auth[] = "S1DnsyFZlCEzWYArOvA-szNpU_j5XHYb";
char ssid[] = "Academia";
char pass[] = "chorke";

BlynkTimer timer;
BLYNK_WRITE(V1) {
  int pinValue = param.asInt();
  digitalWrite(D0, pinValue);
  digitalWrite(D4, pinValue);
  digitalWrite(D5, pinValue);
  digitalWrite(D6, pinValue);
  digitalWrite(D7, pinValue);
}

void setup() {
  Blynk.begin(auth, ssid, pass);
  pinMode(D0, OUTPUT);
  pinMode(D4, OUTPUT);
  pinMode(D5, OUTPUT);
  pinMode(D6, OUTPUT);
  pinMode(D7, OUTPUT);
  digitalWrite(D5, LOW);
}

void loop(){
  //TODO
}

References

• Quick Start with NodeMCU V3 ESP8266
• Blynk Simple ESP8266 Header
• Arduino core for ESP8266
• NodeMCU V3 ESP8266
• Blynk C++ Library
• Blynk Example
• Arduino IDE