Why Companies use MQTT

The term MQTT stands for Message Queuing Telemetry Transport, which is a standard messaging protocol that is designed specifically to communicate between IoT various devices. MQTT is used in a number of industries like telecommunication, automotive and energy management companies, etc.

For enhanced communication and efficient data exchange, MQTT scales to millions of connected devices and works with a common authentication protocol. It has the potential to connect millions of devices on the internet at a single time. MQTT is a great option for businesses looking for bidirectional messaging that requires minimal resources.

If you are new to building your own IoT platform based on MQTT, the following is a basic guide to the fundamentals of MQTT.

Message Queuing Telemetry Transport has some unique capabilities and features that make it an excellent choice for IoT systems. Let’s explore a few important points that set it apart.

IoT devices often face challenges regarding memory, computing speed, and energy usage. MQTT’s small size and low overhead make it ideal for fulfilling various industries’ communication needs. It utilizes fewer resources and enables effective communication with constrained capabilities.

When many devices need to be connected, there may be issues with unreliable connections. To overcome such hurdles, MQTT offers several Quality of Service (QoS) levels and provides dependable connections under difficult circumstances. It ensures session awareness and persistent connections, making it a superior choice compared to other protocols.

To protect sensitive data, MQTT supports TLS encryption, allowing frequent transfers of sensitive data without inconvenience. It also includes authentication techniques to secure credentials, ensuring high levels of security.

MQTT is a good fit for large-scale IoT applications due to its lightweight design and effective resource management. Its high-grade protocols reduce network traffic and facilitate fast & convenient, meeting the needs of various users efficiently.

To promote smooth communication & interoperability in diverse IoT ecosystems, MQTT supports a variety of platforms and technologies, accommodating multiple programming languages. This versatility ensures compatibility with different security encryption languages, providing optimal results.

MQTT provide robust authentication for every user, securely storing IDs and passwords in the database. Advanced features validate credentials, preventing unauthorized access.

MQTT allows users to access data from the database and view specific topics easily. Using ‘#’ as a wildcard enhances the accessibility of topics.

To avoid abrupt disconnections, MQTT uses the Last Will and Testament (LWT) technique to establish standard connections with other networks. The LWT message includes QoS, topic, and payload information to ensure reliable connections.

For clients with limited resources, subscribing to all topics can be time-consuming. MQTT brokers employ a persistent session mechanism, saving all client-specific information and allowing direct reconnections to the broker.

MQTT supports message retention, by setting the ‘retain’ flag to TRUE.  When a client subscribes to a topic, the broker matches it to a retained message, ensuring immediate message delivery if the topic matches.

MQTT offers three levels of QoS, allowing users to manage message delivery reliability. The quality of QoS plays a significant role when generating messages and building a long-lasting connection with third parties.

MQTT is an excellent choice for businesses operating in diverse environments, particularly for applications involving remote monitoring. For advanced protection and security of confidential information, it includes real-time sensors and detectors to identify unreliable conditions. MQTT stands out as the best IoT protocol for synchronization and ensuring reliable information delivery. Rensair Core i devices and the IAQ management software Rensair Cloud uses light-weight industry recognisable MQTT protocol encrypted using Transport Layer Security (TLS) to secure bi-directional communication. Learn more on how our hardware and software is connected here.