Make sure you also have the ESP8266 board package installed in your Arduino IDE.
relay using this library? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 10 sites blynk-library/src/BlynkSimpleEsp8266.h at master - GitHub endif #include #if ESP_SDK_VERSION_NUMBER < 0x020200 #error Please update your ESP8266 Arduino Core #endif #include #include #incl... GitHub "BlynkSimpleEsp8266.h: No such file or directory found" error Oct 15, 2022 — blynksimpleesp8266.h library download