Khalid Badr Yass, Ahmed Rashid, Flyback Converter Controller by Arduino Uno, International Journal of Electrical and Power Engineering, Volume 13,Issue 6, 2019, Pages 88-92, ISSN 1990-7958, ijepe.2019.88.92, (https://makhillpublications.co/view-article.php?doi=ijepe.2019.88.92) Abstract: This study presented a flyback converter that regulates output voltage to give a desired value and can used in many application such as power supply. To give a regulated output voltage from flyback converter a feedback loop with Proportional-Integral (PI) controller is used. A simulation of flyback converter is employed by MATLAB/Simulink. Also a practical implementation is used microcontroller Arduino to control on the duty cycle through IC2112 driver at change in the input voltage or resistive load. The duty controller to create regulate output voltage by using voltage mode control. Keywords: Flayback converter;Arduino Uno;PI controller;MATLAB;open loop;close loop;IC2112