Quantity   Component name
1 × Capacitor, 10uF (C1)
1 × Capacitor, 0.1uF (C2)
1 × LED, 5mm, 2V Red (D1)
2 × Diode, 1N4148 (D2, D3)
1 × 2.1mm Barrel jack (J3)
1 × 2x8 pin header (To Raspberry Pi: J4)
1 × Resistor, 100 Ohm (R1)
2 × Resistor, 10K (R2, R3)
1 × Linear Voltage Regulator, 5V, LM7805 (U1)
1 × Push Button, Part #R13-502
1 × Wires (To Printer Data: J1, To Printer Power: J2, To Push Button: J5)
1 × Raspberry Pi Zero W with Raspbian Jessie Lite 2017-03-02 installed (version important for read-only FS conversion)
1 × 3D prints of two STL files
1 × Thermal receipt printer (DP-58C)
1 × DC power supply (12V 5A) with 2.1mm barrel jack
1 × Stripboard
1 × M2.5x12 and M2x6 machine screws
1 × Sacrificial pencil