Electronic piano circuit PCB printed circuit board drawing upon the Pic18f4550 microcontroller PIC has been a regular speaker on the card directly to number 2 in the pin of this RA0-Pic18f4550 AN0 pine bjt, mosfet transistor or the amplifier... Electronics Projects, Electronic Piano Using PIC microcontroller (PIC18F4550) "microchip projects, microcontroller projects, " Date 2019/08/04