The header #include is a core component of the Blynk IoT platform
Add to sketch:
Locate the folder (e.g., Blynk ) and manually copy it into your Arduino libraries directory . blynksimpleesp8266 h library zip
The BlynkSimpleESP8266.h file is not a standalone library; it is a specialized header component contained within the main package.
Works with ESP8266 boards, including the NodeMCU (v2/v3) and Wemos D1 Mini. The header #include is a core component of
#include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h>
// Turn on an LED connected to GPIO 2 digitalWrite(2, HIGH); blynksimpleesp8266 h library zip
#include <BlynkSimpleEsp8266.h>