1 |
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DVD (preferrably blank)
best to use a blank one, but really any DVD or even CD will do
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1 |
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Arduino Nano
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1 |
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EasyDriver board
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1 |
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stepper motor
use a motor with at least 200 steps/revolution
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1 |
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photodiode
here: Osram BPX65, but again any photodiode will do
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1 |
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Op Amp
here: LM358N, though any opamp will do
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1 |
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Hall sensor (optional)
from an old CD drive, found under the spindle motor
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1 |
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various resistors, capacitors, etc
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1 |
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tin foil
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1 |
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pieces of scrap wood/plastic
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1 |
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3d printed mounts & holders
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1 |
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Small magnet (optional)
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