| Item | Vendor | Number | Price Per Unit ($) | Estimated Total ($) | Total ($) |
|---|---|---|---|---|---|
| OPB 742 Infrared Sensor | Digikey | 12 | $ 2.70 | $ 32.70 | $ 32.70 |
| Stepper Motor | Amazon | 1 | $ 12.99 | $ 12.99 | $ 12.99 |
| Arduino | Nick | 2 | $ 10.90 | $ 21.80 | $ 0.00 |
| 12V 2A Power Supply | Amazon | 1 | $ 7.99 | $ 7.99 | $ 7.99 |
| 0.5in Aluminum Rod | Olin Stock Market | 2 | $ 0.00 | $ 0.00 | $ 0.00 |
| TIP41A Transistor | DigiKey | 12 | $ 0.57 | $ 6.84 | $ 6.84 |
| Solenoids | IC Station | 12 | $ 4.95 | $ 118.80 | $ 143.70 |
| MDF Board | Olin Stock Market | 12 | $ 0.00 | $ 0.00 | $ 0.00 |
| Acrylic | Olin Stock Market | 12 | $ 0.00 | $ 0.00 | $ 0.00 |
| 500Ω Resistor | Olin Stock Market | 24 | $ 0.00 | $ 0.00 | $ 0.00 |
| 100Ω Resistor | Olin Stock Market | 12 | $ 0.00 | $ 0.00 | $ 0.00 |
| 1IN4007 Diode | Olin Stock Market | 12 | $ 0.00 | $ 0.00 | $ 0.00 |
| Wire | Olin Stock Market | ~70 ft | $ 0.00 | $ 0.00 | $ 0.00 |
| Head Adapters for Power Supplies | Olin Stock Market | 72 | $ 0.00 | $ 0.00 | $ 0.00 |
| Breadboards | Group Members | 2 | $ 0.00 | $ 0.00 | $ 0.00 |
| Prototyping Board | Yichen | 1 | $ 0.00 | $ 0.00 | $ 0.00 |
| Keyboard | Siena | 1 | $ 0.00 | $ 0.00 | $ 0.00 |
| 6-32 Square Nut | POE Stock | 20 | $ 0.00 | $ 0.00 | $ 0.00 |
| 6-32 1" Screw | POE Stock | 32 | $ 0.00 | $ 0.00 | $ 0.00 |
| Wood Glue | POE Stock | ~1 Teaspoon | $ 0.00 | $ 0.00 | $ 0.00 |
| Jumper Cable | Olin ECE Stock Room | 2 | $ 0.00 | $ 0.00 | $ 0.00 |
| TOTAL | $ 204.22 |