Make sure you have an Arduino Leonardo or equivalent microprocessor, big enough sheets of 3mm material to cut the design from and plenty of wires and M3 10 screws and nuts to assemble all the parts.
For this device you need an Arduino or equivalent microprocessor.
| No | Amount | Description | Supplier NL | Cost |
|---|---|---|---|---|
| 1 | 1 | White 5mm LED | iPrototype, EOO, Hackerstore | 0.18 |
| 2 | 1 | TSL1406R Photo diode array | Mouser, DigiKey | 22.57 |
| 3 | 1 | 1,000 lines/mm grating | ipacity, Carolina | 14.00 |
| 4 | 1 | 100 uF capacitor | Farnell | 0.14 |
| 5 | 4 | 220 ohm resistor | Farnell, iPrototype, EOO | 0.02 |
| 6 | 1 | Array of 13 right angle header pins | iPrototype | 0.99 |
| 7 | 1 | RGB LED | Farnell, iPrototype | 0.95 |
Estimate cost: EUR 38.85
Alternatives
- Photodiode arrays can be found in flat bed scanners
- CCD chips are part of cheap webcams
- Compact Discs (CDs) have 0.001 mm slits