“Today, we are going to introduce the Message Queue Telemetry Transport (MQTT), a very useful method for IoT (Internet of Things). The main use of the MQTT is to provide communication between machines, that is, Machine-to-Machine (M2M). Let us therefore take the first steps with the Ubidots IoT platform, exposing its use in an example with ESP32 LoRa. This also comes with a DHT22 sensor, allowing for the sending of information made with the MQTT protocol.
The MQTT protocol was created by IBM a long time ago and became widely used for IoT with cheap chips and easy access to the internet. In todays specific example, we will use Ubidots. These are brokers, or rather, websites with a broker.”