Abstract
A Thermoelectric Heat Pump (THP) controller system with smart Graphical User Interface (GUI) was introduced to solidify liquid samples for laser induced breakdown spectroscopy (LIBS) analysis. This paper describes the smart GUI and THP controller system based on the Arduino platform. The THP controller system was built to provide a user-friendly smart GUI for controlling the Peltier Thermoelectric Cooler (TEC) temperature and monitoring the sample temperature acquired from the temperature sensor. Instructions on the construction of the smart GUI and THP controller circuit were explained in this paper. The experimental results on solidifying distilled water and maintaining its freezing phase are presented in this work that demonstrated the excellent performance of the developed system.
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