esp8266 and esp32 mqtt wrapper library This library is part of framework esp8266 Arduino core - 3.1.2 Patched version of ESPAsyncTCP.h - v1.2.2-2 esp32 Arduino core - 2.0.17 Patched version of AsyncTCP.h - v1.1.1-1 espMqttClient - 1.7.0