Welcome to the MQTT mailing list and discussion group.

MQTT is a lightweight publish/subscribe messaging protocol originally developed for sensor applications. MQTT is extremely useful and widely adopted in mobile environments due to the low power consumption, simplicity of API, and small bandwidth used. Clients and servers are available in various languages including C, Python, Erlang, C#, Java etc - see for more information about the protocol and the community around it.

This group is intended to bring together discussions of the protocol and different implementations. Other discussion media exist (for example, individual software implementations may have their own project resources) but this group is for discussion of the protocol and MQTT ecosystem as a whole. Off-topic debates, discussion around alternative protocols, etc. do not belong in this group. Thanks.

Initial posts will need to be moderated by a group administrator before they appear to the community.

Showing 1-20 of 932 topics
Way to react from mqtt broker if connection in between is broken and state of client id reusal 11/14/17
Connecting to AWS iot using Arduino MKR1000 andrew stillie 11/13/17
PubSubClient With nodemcu Mitul Tyagi 11/10/17
Testing MQTT packet types - any simple python tests anyone has ? Stefan Kwiatkowski 11/9/17
Best MQTT broker for throughput Andrea Giordano 11/6/17
Do wee need to implement MQTT client on all Zigbee nodes chandra sekhar 11/6/17
Publish on topics with leading $dollar sign? Sebastian Raff 10/27/17
mqtt topics Mike Webb 10/26/17
How to run MQTT internally on linux server to publish and subscribe data using PHP Naveenkumar Tarigonda 10/23/17
ESP8266 Server Daniel Fernandoes 10/21/17
phpMQTT connection refused Andrew Hickey 10/18/17
Confused with ESP8266 NODEMCU Floppy Penguin 10/18/17
Compile problem Jakub Nykiel 10/17/17
NodeMCU access point for MQTT broker sweety 10/17/17
PUBLISH, QoS1, re-deliver "madness" Sebastian Wannemaker 10/13/17
Can't reach mqtt broker from external network Andrea Giordano 10/10/17
Windows MQTT Client andrew stillie 10/10/17
mqtt database Sebastian Raff 10/2/17
MQTT with Cordova and PAHO Android Service Robert Andrei 9/29/17
MQTT Logo for advertising.(homepage/ brochure) Axel Hulsch 9/26/17
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