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    A Microcontroller-Controlled Optocoupler-Based Memristor Emulator and Its Usage in a Low-Pass Filter
    (Springer Int Publ Ag, 2024) Arapi, Mendi; Karakulak, Ertugrul; Mutlu, Resat
    A nonlinear circuit element called a memristor has become a popular research area today. Circuits that mimic the behavior of a memristor are called memristor emulators. There are many different types of memristor emulators made. There are also optoelectronic memristor emulators in the literature, albeit in small numbers. In this study, a microcontroller-controlled memristor emulator with a hand-made optocoupler was designed. The circuit is made using an inexpensive microcontroller, the STM32F103RB microcontroller. The emulator made was used in the design of an LP filter with an adjustable cutoff frequency of low and high pass. The operation of the emulator and the filter has been studied experimentally. Experimental results show that the emulator and the LP filter circuits perform well.