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 21-40 of 944 topics
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
Mqtt connection problem (socket error on client <unknown>, disconnecting.) Daniele Carvalho 9/26/17
Mosquitto broker sending message to Azure IoT Hub Mario Barbato 9/19/17
How to remove "damaged" retained topics from mosquitto broker Andreas Link 9/19/17
connect to xamarin mqtt server N M Reddy Arimanda 9/18/17
MQTT to House Control through Raspberry pi Henrik Andersen 9/16/17
Application error 0x0c0150002 while installing mosquitto tanvi ranade 9/16/17
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