![]() All (or almost all) IOT cloud providers implement it and provide an MQTT server. ![]() MQTT is a very convenient protocol to implement IOT it's simple, reliable and light. For example, it has been used in sensors communicating to a broker via satellite link, over occasional dial-up connections with healthcare providers, and in a range of home It is useful for connections with remote locations where a small code footprint is required and/or network bandwidth is at a premium. It was designed as an extremely lightweight publish/subscribe messaging transport. MQTT is a machine-to-machine (M2M)/"Internet of Things" connectivity protocol. a rain gauge only makes sense outside -) ) depending on where the client is installed. As you separate clients and server, you can have as many clients as you want, measuring data in different places, or polling for different data (e.g. We will use a Raspberry as the IOT Server and ESP8266 with their correspondent gauges as clients. Besides the learning challenge, it provides independency from internet communications and IT providers. The goal was to set up a weather station without using IOT services from any cloud provider.
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