15 Light Sensor Sets Pixels

Set the LED Pixel Color with Light Sensor

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/* Use the light sensor to control the color of the LED rainbow pixels */

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Compile errors:

Serial port monitor: Input: Send Close

 

Walkthrough Video

Watch the video for a line-by-line explanation of how the example program works. Then you'll be ready to make some changes of your own!

LED Pixel Color Spectrum

Use this spectrum to estimate the color values you'll need for your 'setPixel' arguments to achieve your favorite color!

This graphic represents how some values from the light sensor will be 'mapped' onto the pixel colors.

Challenges

Can you complete the challenges? Change the code in your code editor above. Upload your code to see the effect when you're finished. Complete a challenge? Check it off the list!

Using 3 setPixel functions, try to rewrite the code so that Bumblebee's eyes use the color variable for its color and the Autobot shield uses a number value for the color. Here’s an example of how the code will look:
pixels.setPixel(0,color);
pixels.setPixel(1,color);
pixels.setPixel(3,200);
….

Adjust the fourth and fifth arguments in the map function to change how wide the range of colors are that can display on the pixels.

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