Motorcontrollers are everywhere, cheap and reliable, but building a field-oriented control (FOC) from scratch to understand the details is a nice challenge. So I accepted the challenge and implemented a full-featured FOC within an FPGA.
Spare parts for Viessmann-controls are quite expensive. As the control of our oil-heater has broken down, I searched for a replacement but in the end I developed a full replacement with MQTT and connection to NodeRED.
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