DIY $20 Spectrometer Part 3: Initial Calibration - Episode 106

	DIY $20 Spectrometer Part 3: Initial Calibration - Episode 106 Basic Data Category: Photometer, spectrometer URL (first publication): https://www.youtube.com/watch?v=Con5gjWQCwQ no no no Other Design files are in original format: No Free redistribution is allowed licence: No

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I have painted the inside of the cardboard box enclosure and secured the outside with black tape. Now it is ready for the webcam ...