I get this compile error :-
Arduino: 1.6.5 (Windows 7), Board: "Generic ESP8266 Module, 80 MHz, 115200, 512K (64K SPIFFS)"
MQTT_Led.ino:15:112: fatal error: PubSubClient.h: No such file or directory
compilation terminated.
Error compiling.
Is it the knolleary library that is required?