Appendix 1: Project Kits
8 position DIP switch 30842 1 0.89 0.89
Potentiometer – 10 kOhm 264410 1 1.18 1.18
PWM Motor Control
Motor 231896CA 1 0.99 0.99
Power Transistor – TIP115 288526 1 0.48 0.48
Optoisolator – 4N28 41013 1 0.46 0.46
Diode – 1N4001 35975CA 10 0.03 0.30
9v Connector 216451 1 0.34 0.34
Slotted Interrupter – H21A1 114091CL 1 0.69 0.69
2.2 k Ohm resistor 108054 100 0.0069 0.69
Solder Kit
Description Part Number Quan Price/Unit Total
Soldering iron 208987 1 2.99 2.99
Solder 170456 1 1.39 1.39
Solder wick 410801 1 1.49 1.49