The objective of this thesis is to develop a chemical test bench, using many components, and verify the reliability of this system. The principal components used to develop this testbench are an Arduino board, some sensors (used to measure the water level and the temperature), a micropumps, a microcontroller, a flow switch, reservoirs, LED and resistors, IR receiver and lastly a heater for aquarium (used to heat the water contained in the reservoir). After a first part of design, I create then the physical model: a chemical mixing experimental setup that is controlled by Arduino Uno. During the test I required some component, and I designed it by myself using a 3D printer, more specifically I printed some nozzles and an Arduino case.