The thesis addresses development and implementation of a microcontroller-based system for heatpump control using protocol Modbus RTU. The system gathers operational data, processes it, and publishes it to an MQTT broker. Access to MQTT broker is also available to the home automation platform Home Assistant, which displays recieved data in form of graphs and numbers. Additionaly the platform enables user to switch between heatpump operational modes and set target central system temperature.
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