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MQTT is an ISO standard (ISO/IEC PRF 20922) [1] publish–subscribe-based messaging protocol.It works on top of the Internet protocol suite TCP/IP. It is designed for connections with remote locations where a "small code footprint" is required or the network bandwidth is limited.
The project was started as a Python application by Paulus Schoutsen in September 2013 and first published publicly on GitHub in November 2013. [24]In July 2017, a managed operating system called Hass.io was initially introduced to make it easier to use Home Assistant on single-board computers like the Raspberry Pi series.
MQTT clustering is a technique employed to ensure high availability, fault tolerance, and scalability in MQTT deployments. [27] As an efficient and lightweight messaging protocol, MQTT clustering allows for the creation of a resilient network of interconnected broker nodes, ensuring continuous and reliable message delivery even in the face of ...
The Raspberry Pi Zero v1.3 was released in May 2016, which added a camera connector. [40] The Raspberry Pi Zero W was launched in February 2017, a version of the Zero with Wi-Fi and Bluetooth capabilities, for US$10. [41] [42] The Raspberry Pi Zero WH was launched in January 2018, a version of the Zero W with pre-soldered GPIO headers. [43]
A SETUP request specifies how a single media stream must be transported. This must be done before a PLAY request is sent. The request contains the media stream URL and a transport specifier. This specifier typically includes a local port for receiving RTP data (audio or video), and another for RTCP data (meta information). The server reply ...
Here are 5 simple signs that someone is secretly broke in America — do they apply to the people around you?
Today's Connections Game Answers for Friday, February 21, 2025: 1. WAY OF SOLVING A PROBLEM: ANSWER, FIX, REMEDY, SOLUTION 2. COLLECT, AS FROM AN ORCHARD: GATHER ...
Node-RED has gained traction in the industrial internet of things (IIoT) and edge computing sectors. [8] [9] [10] Node-RED's open-source nature and large community have led to the creation of over 4000 connectors [11] supporting a wide range of data sources and protocols such as Modbus, OPC-UA, Siemens S7, and MQTT.
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