ELI5: Explain Like I'm 5


MQTT stands for Message Queuing Telemetry Transport. It's a way of sending messages using the internet. When you use MQTT, you have a 'sender' that sends messages and a 'receiver' that receives them. The messages are sent over the internet so that the receiver can get the message no matter where they are. This makes MQTT a very useful way of communicating between different computers, phones, and other devices.