“MQTT Pub/Sub on Wio Terminal.
TL;DR: We are going to look at the MQTT Protocol on the Seeed Wio Terminal, Publish and Subscribe Topic over the MQTTon the Wio Terminal, and I’ll show how to transfer data between Wio terminal and Mobile Phone or any device* using MQTT.
Introduction to MQTT
MQTT is an OASIS standard messaging protocol for the Internet of Things (IoT). It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth.
MQTT today is used in a wide variety of industries, such as automotive, manufacturing, telecommunications, oil and gas, etc.
The protocol was invented in 1999 by Andy Stanford-Clark (IBM) and Arlen Nipper (Arcom, now Cirrus Link). They needed a protocol for minimal battery loss and minimal bandwidth to connect with oil pipelines via satellite. The “MQ” refers to the MQ Series, a product IBM developed to support MQ telemetry transport. When Andy and Arlen created their protocol in 1999, they named it after the IBM product.
Why MQTT?
Lightweight and Efficient
Bi-directional Communications
Scale to Millions of Things
Reliable Message Delivery
Support for Unreliable Networks
Security Enabled
The publish/subscribe pattern
The publish/subscribe pattern (also known as pub/sub) provides an alternative to a traditional client-server architecture. In the client-server model, a client communicates directly with an endpoint.”