Mqtt, Esp32, Arduino, Wireless Sensor Network, Esp8266.
names in each message, devices can use compact Topic IDs, which helps conserve bandwidth in environments where resources are limited. QoS Levels: MQTT: Supports three levels of Quality of Service (QoS) — 0 (At most once), 1 (At least once), and 2 (Exactly once) — allowing for different levels of