MQTT Client

Communication

MQTT Client lets you connect to a MQTT broker and publish strings to a topic.
First create a MQTTClient. You have to pass a task list from Cooperative Multitasking, a client (e.g. WiFiClient from WiFi101), host, port and credentials of the MQTT broker. Then create a MQTTTopic. Use the MQTTClient and the topic name as arguments when doing that. To connect to the broker call MQTTClient::connect(). After that you can call MQTTTopic:publish("...") to publish a string. Requires Cooperative Multitasking for processing the acknowledgement packets of the broker. So you have call CooperativeMultitasking::run() in your loop() function. See the examples for details.

Author: Andreas Motzek

Maintainer: Andreas Motzek

Read the documentation

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Compatibility

This library is compatible with the samd architecture so you should be able to use it on the following Arduino boards:

• Arduino MKR FOX 1200
• Arduino MKR GSM 1400
• Arduino MKR NB 1500
• Arduino MKR VIDOR 4000
• Arduino MKR WAN 1300 (LoRa connectivity)
• Arduino MKR WAN 1310
• Arduino MKR WiFi 1010
• Arduino MKR ZERO (I2S bus & SD for sound, music & digital audio data)
• Arduino MKR1000 WIFI
• Arduino Nano 33 IoT
• Arduino Zero

Compatibility Note

Note: while the library is supposed to compile correctly on these architectures, it might require specific hardware features that may be available only on some boards.

Releases

To use this library, open the Library Manager in the Arduino IDE and install it from there.

• 1.0.2 (latest)
• 1.0.1
• 1.0.0