![]() 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 automation and small device scenarios. 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. I set this week’s goal to control them by using the MQTT protocol combined with Node-RED. ![]() For the last several weeks, I’ve been playing around with ESP32-CAM, an RGB LED and a TFT LED display. This week's individual assignment is to write an application that interfaces a user with input/output devices I made.
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