Getting started with MQTT
Details
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This workshop provides a fundamental understanding of MQTT and hands-on experience of how easy it is to create your first Arduino application sending sensor data via MQTT.
Message Queuing Telemetry Transport (MQTT) is a machine-to-machine, publish/subscribe protocol. It works with TCP/IP and is suitable for low data transmission or when conservation of bandwidth is the priority.
In this protocol, end-users or clients communicate through a “broker” (server). Data is sent to the broker using a “topic” and other clients can receive this data from the broker if they have subscribed to this topic.
This workshop explains the workings of the protocol, and how to use the same to transmit data at a low rate using Arduino IDE.
What you will know after the workshop:
- Overview of MQTT
- Comparison between MQTT and REST API
- Using MQTT libraries with Arduino IDE
- Publishing sensor data to MQTT broker
Challenges
- Write a simple MQTT example to send temperature readings to MQTT broker
- Create an example to use MQTT via WiFi connection
- Attempt other MQTT libraries
Components
- Adafruit Feather M0 WiFi micro-controller
- Adafruit Feather Huzzah ESP8266 micro-controller
- DHT11 / DHT22 sensors
Don’t miss this chance to find out about MQTT and Arduino development and gain hands-on experience of how easy it is to create your first Arduino application sensing sensor data via MQTT.
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Getting started with MQTT