Quantity   Component name
1 × ATTiny85 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × 16MHz quartz oscillator
2 × 22pF capacitor
1 × 10uF capacitor electrolytic
2 × 3.6V Zener diode
1 × 10kohm resistor
1 × 1.5kohm resistor
2 × 68ohm resistor
1 × USB-B jack
1 × limit switch