1/23/2024 0 Comments Arduino uno led datasheet![]() ![]() We programmed Brunton’s algorithm into the following Arduino sketch. Fortunately, a scientist named Dan Brunton has developed a formula that will do just that. Now we need a way to translate a wavelength of light into its red, green, and blue values. (Look very carefully at the pixels of your computer screen to see this in action.) Since it’s beyond the scope of this book to go too deeply into the science of combining light to make different colors, suffice it to say that by mixing varying intensities of red, green, and blue light, just about any color can be reproduced. This special type of LED is called an RGB LED and it can output red light, green light, blue light, and any combination of those colors: the full ROY G. How are we going to generate every visible wavelength of light to test our LEDs, from ultraviolet to infrared? If your answer is "use a full-spectrum LED," you’re correct. The LED that’s most sensitive to the wavelength is the one that produces the highest response voltage. ![]() You will do this by shining every wavelength of visible light, from 350–700 nm, into each candidate LED, and measuring that LED’s responsive voltage. Your mission, should you choose to accept it, is to determine the peak input wavelength for a series of LEDs. ![]()
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