Quantity   Component name
1 × ATmega328P TQFP32 Microcontroller
1 × Nokia 5110 LCD Clip-in version taken from the usual breakout boards
1 × USB Mini B SMD connector Connector
7 × SMD tacticle switch 4 white and 3 black to achieve some piano-ish look, but doesn't really matter
1 × 6pin IDC connector Serial programming connector
2 × 27pF capacitor 0805 SMD, Crystal load capacitors, value might vary based on the crystal
12 × 100nF capacitor 0805 SMD
2 × 10uF capacitor EIA 3216-18 SMD
2 × 68R resistor 0805 SMD
5 × 100R resistor 0805 SMD
1 × 1k5 resistor 0805 SMD
8 × 10k resistor 0805 SMD
2 × 1M resistor 0805 SMD
4 × SMD LED 0805 SMD white (or red if you insist)
1 × 2N7002 MOSFET SOT-23
1 × AD1117-3.3 LDO SOT-223
1 × 12MHz crystal HC49-SD SMD
1 × 4pin header connector UART interface connector (optional)
1 × 4pin header UART interface supply voltage selector (optional)