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 841 topics
Introducing video over MQTT using the MediaSource API Dave Schere 5:45 AM
What is the difference between the topic name being used on publishing/subscribing and 'will topic'? sujitha 5:41 AM
Mqtt C client authentication Daniele Carvalho 5:09 AM
Is using WiFiClientSecure alone with a MQTTS server enable encyption Balasundram Arunn 4:11 AM
mycustom library and pubsubclient call back Waqas Ahmed 4/19/17
mosquitto_sub: how to find out to which topic a messages belong to Grossmann200 4/15/17
Mosquitto MQTT publish hexadecimal message ? Martinez Benjamin 4/14/17
Mqtt broker mosquitto supports zigbee? 맥주치킨 4/10/17
MqGnatt Dominik Obermaier 4/10/17
Debug message for packet transmission from paho client c kushal bhatta 4/9/17
duplicate packet identifier from paho client kushal bhatta 4/9/17
Best way to handle failed connections in Paho client? Bill Marriott 4/7/17
Using MQTT for Streaming Tweets Pratyush Singh 4/7/17
mqtt c client works with Amazon iot shadow topics? Aurovind Sagar 4/7/17
paho mqtt c client can be used for AWS's iot mqtt broker? How to configure the downloaded certs? Aurovind Sagar 4/7/17
Clean Session Help me! Reginaldo Alves 4/4/17
Re: [mqtt] Re: Having trouble connecting more than two clients to Mosquitto knolleary 4/3/17
Re: [mqtt] Sync data between web server Sumeet Puri 4/1/17
How do i get to use MQTT on Google App Engine? Eng. Chrispinus Onyancha 4/1/17
Open-source multi-tenant monitoring system, Monasca Roland Hochmuth 3/30/17
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