A Microcontroller Based System for the Selected Gases Detection with Alert Feature

M. Niewiński, W. Szczerek (Warsaw Univ. of Techn., Poland)

The problem of measuring the concentration of gaseous chemical compounds in the air - specially these potentially dangerous to human life - is widely researched. The main goal of this work was to design, build and test cost-effective system, which can measure concentration of different gases and additionally notify the user when a specified threshold value is exceeded.