Navigate toESP8266_ISR_Servopage. Download the latest releaseESP8266_ISR_Servo-master.zip. Extract the zip file toESP8266_ISR_Servo-masterdirectory Copy wholeESP8266_ISR_Servo-masterfolder to Arduino libraries' directory such as~/Arduino/libraries/. VS Code & PlatformIO InstallVS Code InstallPlatf...