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Termometer thermal printer

Termometer thermal printer

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ThermoCalc is a real-time heat pump monitoring system built around an ESP32-S3 with a 4.2" e-ink display Three IoT sensor nodes push data via HTTP POST every 15 minutes — a 5× DS18B20 temperature unit, a 3-phase energy meter, and a smart boiler plug. The hub aggregates everything and calculates COP (Coefficient of Performance) live.

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