eDrum based on PIC16F877

eDrum design is based on PIC16F877 RISC microcontroller from Microchip running at 20MHz, two line (16×2) LCD with backlight, and some operational amplifiers. It has 22 analog inputs, 2 digital inputs, 22 input gain potentiometers, 4 control buttons, one MIDI out and one serial RS232 out. [via]

eDrum based on PIC16F877 – [Link]

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