What is MQTT in IoT? Who uses MQTT?


IoT and machine-to-machine technologies must use a messaging and connectivity protocol to exchange information from a remote location under the Azure IoT hub.

A few advisable features of such a protocol are:

  • Small code footprint 
  • Low power consumption
  • Low bandwidth consumption
  • Low latency


MQTT is a lightweight messaging protocol developed by IBM and first released in 1999. It uses the sub-pattern and translates messages between devices, servers, and applications—the MQTT protocol with communications satellites, emphasizing minimal battery loss and bandwidth consumption under MQTT.


Akenza provides a low-code IoT platform that enables us to create IoT items/solutions by attaching, monitoring, and managing devices. It has various output adapters, and akenza allows easy data processing in third-party applications.

Why is the MQTT protocol used in IoT?

  • An IoT system is a matrix of connected devices spreading with each other under the Azure IoT hub. 
  • MQTT fits well into this notion. It is a light agreement with a fast response time. It links appliances efficiently, regardless of the number of devices under MQTT.
  • Our customizable GPS tracking solution used MQTT as a light and energy-efficient communication protocol under the Azure IoT hub. An engaging feature domestic to the MQTT protocol construction is the minimum overhead under the Azure IoT hub. It guarantees smooth data transmission with low transmission capacity and decreases the load on the CPU and RAM.
  • In this IoT estimate, a GPS tracker assembles beacon data and delivers it to the cloud with a real-time display on the front. MQTT was an excellent choice for a small-sized tool with low power consumption under the Azure IoT hub.

The MQTT IoT agreement can deliver data even with unstable connections. It provides three options for QoS, which is responsible for message delivery under the Azure IoT hub. The choice depends on data critically and connection stability under MQTT.

  • QoS: A publisher sends a message without requesting guaranteed delivery. We can utilize it when the information transmitted is not evaluative and the connection is stable under the Azure IoT hub.
  • QoS 1: A publisher delivers a message until it gets a delivery verification. QoS 1 makes sure the follower receives the text. You can utilize it when the information provided is critical, and the connection could be more stable under MQTT.
  • QoS 2: A publisher delivers a message only once with guaranteed delivery. QoS 2 ensures the subscriber receives the message only once without duplicates and overhead under the Azure IoT hub. You can utilize it when the information is critical, and the link could be more stable under MQTT.

IoT applications that use the MQTT protocol:

MQTT is an alterable and easy-to-use technique that provides productive communication within an IoT system under MQTT. So, no wonder many popular IoT applications use the MQTT protocol. For example, the IBM Waston IoT Platform uses MQTT as the primary communication protocol under the Azure IoT hub.

Amazon Web Services utilized MQTT as a ground for AWS IoT services. AWS IoT Core has an MQTT-based message agent supporting two levels of MQTT QoS.

Advantages of MQTT:

  • Efficient data transmission
  • Quick to implement as it is a lightweight protocol
  • Low network usage due to the depreciation of data packets
  • Fast and efficient message delivery
  • It uses minimal amounts of power, which is suitable especially for the wireless devices under the Azure IoT hub
  • Reduction of network bandwidth in communication under MQTT.

How is MQTT used in IoT?

Automotive: MQTT IoT projects in the automotive sector enable vehicle theft prevention, vehicle monitoring, and remote maintenance of vehicles under MQTT.

Logistics: one of the best MQTT protocols in the IoT example is the logistics sector. MQTT IoT hubs such as Airtel IoT help track freight vehicles and provide real-time alerts for freight safety and movement under the Azure IoT hub.

Energy: IoT MQTT panels in the energy sector help build a smarter energy grid and optimize consumer power consumption under MQTT.

Home automation: IoT dashboards use MQTT to manage home devices instantly with our mobile phones under MQTT.


MQTT is a strong competitor in data transfer and network communication, although it is only number one at some points under the Azure IoT hub. For example, CoAP defeats MQTT in throughput and above. And AMQP takes the security lead. However, there are several key advantages that MQTT provides to its users:

  • Dependability;
  • Fast reply time;
  • Capability to support unlimited tools;
  • Publish messaging that is perfect for many-to-many transmission;
  • Sufficient authentication and a strong developer community that simplifies MQTT protocol implementation under MQTT.

All this makes MQTT a well-suited option for your IoT device. Our IoT solution development uses MQTT as part of the protocol stack under MQTT. 

It is one of the favorite choices for low-power wireless devices with unstable connections under the Azure IoT hub.