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 977 topics
TypeError: a bytes-like object is required, not 'str' user2301 1/22/18
Re: [mqtt] can i set different publishing permition for each topic? knolleary 1/21/18
Grouping MQTT topics, creating scenes Mike C 1/20/18
Client authentication with symmetric keys (AES) 1/19/18
How to build chat application using MQTT chandan khatri 1/19/18
MQTT for video conference Sai Kiran Kumar Reddy 1/16/18
Presentation of MQTT in Copenhagen 1/16/18
Buffer MQTT Mateus Cabral 1/10/18
IoT in Smart Cities Sharing few learnings from developing new product in IoT market 1/5/18
Getting several messages in one TCP payload Arturas Jonkus 1/4/18
MQTT on windows10 with sonoff-moduls GM 1/3/18
Fwd: Us congress hearing of maan alsaan Money laundry قضية الكونغجرس لغسيل الأموال للمليادير معن الصانع kareem M 1/2/18
Paho MQTT using STM32 Sarthak Kelapure 1/1/18
Error in sudo apt-get install mosquitto-clients Mello Lorier 12/31/17
socket.error: [Errno 32] Broken pipe while publishing data from Raspberry Pi Jyoti sharma 12/28/17
MQTT peer-to-peer style, broker & client on the same machine? Jerzy 12/26/17
Publish.Single() return codes, or, best way to publish data with a confirmation of success Bas Rijniersce 12/26/17
Connection between RPi 3 and VPS via mqtt Aristi 12/20/17
Using JavaScript to process MQTT messages that have been received Bruce Emsworth 12/15/17
Atmel SAMD21 + WInc1500 : Provision page Daniele Carvalho 12/14/17
More topics »