Atmospheric Monitoring with Arduino by Patrick Di Justo & Emily Gertz

Author:Patrick Di Justo & Emily Gertz [Di Justo, Patrick and Gertz, Emily]
Language: eng
Format: epub
ISBN: 9781449338145
Publisher: O’Reilly Media, Inc.
Published: 2013-03-24T16:00:00+00:00

Chapter 4. Gadget: LED Sensitivity Tester

Before building and using the LED photometer, we first need to figure out exactly which wavelengths of light each of our LEDs is sensitive to. Otherwise, we won’t be able to get good data with the photometer. Unfortunately, no LED datasheet that we’ve ever seen troubles itself with listing LED input wavelength, because LED manufacturers generally don’t think of their products as input devices. Fortunately, we can determine input wavelengths with a gadget we can build ourselves: the LED sensitivity detector.

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