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Measurement and level regulation with ultrasound sensor and Arduino microcontroller

Arduino open-source microcontroller platform has been proved as modular and cheap platform for vast number of different tasks and applications. Strong community and potent hardware base with large number of sensors and actuator that are premade for Arduino platform (called shields) made this possible. Aim of this work is to assess feasibility of HC-SR04 ultrasound sensors with Arduino Uno R3 platform and relay shield as solution for real world application of level regulation. Model system is investigated, comprising of liquid tank, one HC-SR04 ultrasound sensor, Arduino Uno R3 microcontroller board and relay shield with two solenoid valves. Custom software is made with aid of open source libraries and tools for implementing control algorithms. With Arduino support for serial communication, communication and control is very easy by means of personal computer appropriate application, with graphical user interface. Further, Arduino Uno R3 with low price is very competitive to dedicated and established solutions for process automation such as programmable logic controllers in small family enterprises.

level measurement; ultrasound; Arduino

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