Search Results for "subscribe"

Eclipse Mosquitto is an open-source MQTT message broker from the Eclipse ecosystem. It implements MQTT versions 5.0, 3.1.1, and 3.1 for lightweight publish-and-subscribe communication. The project is designed for IoT, machine-to-machine messaging, telemetry, home automation, embedded devices, and distributed systems that need efficient event delivery. It includes the broker itself, C and C++ client libraries, and command-line tools for publishing, subscribing, request-response testing, password management, broker control, and signaling. ...

...It’s easy and quick to create multiple, simultaneous online MQTT client connections, and can test the connection, publishing, and subscription functions of MQTT/TCP, MQTT/TLS, MQTT/WebSocket as well as other MQTT protocol features. MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely simple and lightweight messaging protocol, designed for constrained devices and low-bandwidth, high-latency or unreliable networks. To run MQTT Broker locally, EMQX is recommended: An Open-Source, Cloud-Native, Distributed MQTT Broker for IoT. After the MQTT is connected successfully, you can perform MQTT publish and subscription tests.

...A Job can be used to manage your fleet of devices, update firmware and security certificates on your devices, or perform administrative tasks such as restarting devices and performing diagnostics. It interacts with the AWS IoT Jobs service using MQTT, a lightweight publish-subscribe protocol. This library provides a convenience API to compose and recognize the MQTT topic strings used by the Jobs service. The library is written in C compliant with ISO C90 and MISRA C:2012, and is distributed under the MIT Open Source License. This library has gone through code quality checks including verification that no function has a GNU Complexity score over 8, and checks against deviations from mandatory rules in the MISRA coding standard. ...

For owntracks, see https://owntracks.org/ mqottrace collects location data from the mqtt server and writes it into an sqlite3 database. You can convert the data into gpx tracks with mqott2gpx.

...Therefore it can be used along with any terminal, computer or microcontroller, which is equipped with a serial port (or USB port) -) Connect / disconnect to WiFi and Flespi MQTT broker -) Publish messages -) Subscribe to topics / Unsubscribe from topics -) Read the messages received Furthermore a GUI is on developing process to demonstrate the use. Paypal donations are welcome! reinharddaemon@gmail.com

...The AWS-IoT-Arduino-Yún-SDK consists of two parts, which take use of the resources of the two chips on Arduino Yún, one for native Arduino IDE API access and the other for functionality and connections to the AWS IoT built on top of AWS IoT Device SDK for Python. The AWS-IoT-Arduino-Yún-SDK provides APIs to let users publish messages to AWS IoT and subscribe to MQTT topics to receive messages transmitted by other devices or coming from the broker. This allows to interact with the standard MQTT PubSub functionality of AWS IoT.

A simple and powerfull MQTT Lightweight Windows Client - beta version! Sources: https://github.com/edwardmartinsjr/MQTTLightweightClient