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 866 topics
Building smart MQTT Broker Mohammad Khalid 6/22/17
got error when running mosquitto with certificate authentication Phuc Tran 6/20/17
Is activemq artemis a MQTT broker for building a chat application that has millions of users? Lee Wong 6/18/17
A mosquitto Mqtt benchmark Thành Khắc Nguyễn 6/14/17
Cannot Publish Hex Array in Android Correctly Gary Poon 6/14/17
MQTT Scaling Nguyen Tien Dat 6/14/17
Mosquitto on Windows 10 Parambir Singh 6/14/17
paho vs mosquitto for C/C++ client Vladimir A 6/12/17
make test fail on debian wheezy Michael Fung 6/12/17
MQTT and usart_callbacks Daniele Carvalho 6/9/17
Reliably determining status Ian Gough 6/7/17
ESP8266 <--> 4 x ESP8266 using MQTT JamesI 6/7/17
Fwd: Us congress hearing of maan alsaan Money laundry قضية الكونغجرس لغسيل الأموال للمليادير معن الصانع kareem M 6/6/17
MQTT v5 visual analysis Alex Robenko 6/1/17
MQTT.JS send hexadecimal message? Daniele Carvalho 6/1/17
Not possible to implement efficient chat Alex Hultman 5/26/17
MQTT v5 timeline Ozan t 5/26/17
MQTT Arduino PubSubClient Bluemix Dale Angus 5/25/17
'$SYS/broker/clients/#' does not work to connection mqtt over websocket? Danilo Carvalho 5/25/17
Retransmission of publish packets from mqtt client (specifically paho in this case) 5/23/17
More topics »