Quantity   Component name
1 × PIC18F2550 THT: Microprocessors, Microcontrollers, DSPs / Microcontrollers (MCUs)
1 × TSOP4838 (IR Receiver and Demodulator) Opto and Fiber Optic Semiconductors and ICs / Other Optoelectronic ICs
1 × TSAL7400 (infrared LED 940 nM) Opto and Fiber Optic Semiconductors and ICs / Infrared (IrDA)
1 × LCD Display (16x2) HD44780-compatible with backlight
1 × PN2222A (or equivalent e.g. BC548) THT: Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
1 × BC557B (or equivalent e.g. PN2907) THT: General purpose PNP Transistor (TO92 package)
2 × 2N7000 General purpose N-Channel MOSFET (TO92 package) THT: Optional (you don't have to include this)
3 × 1N5817-B THT: Schottky barrier diode (D041 package)
1 × LED (any color) Fiber Optics / Emitters
2 × 4.7 μF THT: Tag Tantalum capacitor (polarised)
1 × 220 nF THT: Tag Tantalum capacitor (polarised)
1 × 100 nF THT: Ceramic capacitor (SMD 1206 sized package)
2 × 22 pF THT: Ceramic capacitor
1 × 100 kΩ THT: 1/4 Watt Resistor
1 × 100 Ω THT: 1/4 Watt Resistor
1 × 470 Ω THT: 1/4 Watt Resistor
1 × 22 Ω THT: 1/4 Watt Resistor
2 × 4.7 kΩ THT: 1/4 Watt Resistor
3 × 10k Ω THT: 1/4 Watt Resistor
7 × Tactile micro-switches THT: SPST Normally Open momentary action (Omron B3F series or similar)
1 × 10 kΩ Variable trimmer resistor THT: Bourns 3362 series or similar
1 × 8 MHz Crystal THT: HC49/S package
1 × 5.25" drive bay box/panel (or a standalone box) To house the assembled PCB
1 × Female header (16-pin SIL) For the LCD
1 × Male header 1x6-pin For the In Circuit Serial Programming (ICSP) interface
1 × Male header 2x5-pin For the USB cable
1 × Male header 1x2-pin Optional (for the Standby voltage lead)
1 × Male header 2x4-pin Optional (for the PWR/RST leads)