PIC16F84A microcontroller with the basic DO-RE-MI-FA pic of a simple circuit that can produce notes prepared by software RA3 assembly speaker connected to the output of 0.5W. Guide to use the PIC electronic work, I made a Doremifa organ... Electronics Projects, Simple Melody Circuit with PIC16F84A DO-RE-MI-FA "microchip projects, microcontroller projects, pic assembly example, pic16f84 projects, simple circuit projects, " Date 2019/08/02