AN AUTOMATIC LIQUID LEVEL CONTROL SYSTEM WITH THE USE OF THE ARDUINO MICROCONTROLLER AND STRAIN GAUGES-ANALYSIS OF APPLICATION POSSIBILITY IN MANUFACTURING PROCESSES

The aim of the work was to present the possibility of automatic regulation of the liquid level in the tank with the use of the Arduino platform, strain gauge measurements and pump operation regulation by means of a PID controller. The possibility to program the Arduino and implementing the algorithm of the PID controller was presented. To be able to use the PID controller, the controller was tuned using the II Ziegler-Nichols method and the manual method. To check how the applied controller works in automatic liquid level control and how its settings affect the operation of the system, tests were carried out comparing the operation of various configurations of the PID controller in various operating conditions. The work carried out showed the possibility of developing a low-cost automatic liquid level control system, which can be successfully used in manufacturing processes.