Controllers have been widely used in various areas in the industry due to many benefits. Controllers with microprocessors applying innovative control algorithms are becoming widespread with the developing technology instead of classical controllers such as PID controllers. In this study, it has been shown with a developed controller with microprocessor that the model free sliding mode control techniques, which have started to take place in the literature, are also applicable in practice. In the developed microprocessor controller, the angular position of a suspended pendulum system was controlled using model free sliding mode control methods. In the angular position measurement, the IMUsensor, which is frequently preferred in smart devices recently, has been used in this study. The control signal obtained by comparing the reference angle with the pendulum angle value calculated by microprocessor is used the brushless direct current motor that rotates the propeller that moves the suspended pendulum. Within the scope of the study, due to the interface developed with the microprocessor commands can be taken from the user and outputs of the system can be visually transferred to the user. Thanks to results obtained with many experiments and simulations in the study, it was seen that the microprocessor based controller, which was developed by using model free sliding mode control techniques, gives satisfactory results with its simple and robust structure, and suggestions were made for future studies.