Quantity   Component name
1 × PCB Electronic Components / Misc. Electronic Components
1 × 220Ω Resistor Resistor for MIDI Input Circuit
1 × 1N4148 diode Diode for MIDI Input Circuit
1 × 6N137 Optocoupler Optocoupler for MIDI Input Circuit
1 × 8 pin IC socket IC socket for 6N137
1 × 5 PIN DIN Female connector Connector for MIDI Input
1 × USB type B female connector Power supply
1 × SD Card breakout SD Card breakout
2 × Rotary encoder with switch Rotary encoder for menu controlling
1 × 12-key touch sensor breakout MPR121 or TTP229-BSF
1 × LD33V 3.3v voltage regulator
1 × 100Ω Resistor Resistor for YM2151 audio output
1 × TDA1308 breakout Audio preamp for headphones or external amp
1 × YM2151 YAMAHA OPM chip Heart of this DAFM synth
1 × YM3012 YAMAHA DAC chip The best companion for the YM2151
1 × 3.57 MHz crystal oscillator Clock for the YM2151 chip
1 × ⅛” Mini Jack Audio output
3 × 2200 μF Electrolytic Capacitor Capacitor
1 × B103 stereo potentiometer with switch ON / OFF and volume control
4 × 0.96 SPI Monochrome OLED display Displays
1 × 10KΩ Resistor Resistor for MIDI Input Circuit
2 × 74HC595 Shift register for Digital PINS expansion
3 × 16 PIN IC Socket IC Socket for 2x 74HC595 and 1x YM3012
2 × 20-pin Female Header Electronic Components / Misc. Electronic Components
1 × 6-pin Female Header Electronic Components / Misc. Electronic Components
1 × Green pill or STM32F103CBT6 or STM32F401CCU6 breakout MCU