In many microcontroller based embedded system projects the object oriented programming is not considered because of the extremely limited resources and relatively large code generated by the compilers. Usually C, assembly and mixed C-Assembly language programming is dominating these applications. In some cases even the size of the code generated by a very efficient C compiler is unacceptable. So in many projects the advantages of the object oriented programming are not realized.
In this paper, the use of object oriented programming techniques in the absence of sufficient resources is emphasized. There are significant driving factors limiting the cost of the microcontrollers and limiting their resources. On the other hand consumers expects more functions from the microcontroller applications. It is shown that object oriented analysis/design techniques and programming can still be used to the extent that most of the benefits of object-oriented programming can be realized if the suitable mechanisms are employed.