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Basiccolor display 5 serial5/17/2023 This example will cover a set of twelve tertiary colors and white.Ĭopy and paste the following code into the Arduino IDE and upload to your LilyPad Arduino. There are actually millions of color combinations available using RGB LEDs once you begin experimenting by adjusting the brightness/saturation of each channel. In this activity, you'll create tertiary colors by combining the three color channels at 50% brightness levels. In the last example, you created basic primary and secondary colors by turning the red, green, and blue channels on or off with different combinations. You will need to confirm that the sew tabs you connect to the RGB LED have PWM capabilities - this code will run on a LilyPad Arduino USB, LilyPad Arduino Simple, LilyPad Arduino SimpleSnap, and LilyPad Main board without any changes needed. Adjusting the brightness of the red, green, and blue LEDs within the LED will allow you to create a new range of values and color combinations. In this example, you will but use analogWrite() function to change the brightness of each channel in relation to each other. Take a look a the graphic below to see what colors combine to create primary and secondary colors with light. Turning on all three colors will create white - this is called additive color. Combining the primary colors of light (red, green, and blue) gives different results than combining pigments in paints or inks. Turning on different combinations of three LEDs inside the RGB LED will create new colors. Once the color sequence is complete, the program will loop back to the beginning and repeat the sequence. For each of these colors, we'll turn the necessary RGB LEDs on or off.Īfter uploading your code, the RGB LED will step through a color sequence beginning with all LEDs off ('black'), red, yellow, green, cyan, blue, magenta, and white. Keep this in mind as you prototype with the LED and mix your colors. turn on the LEDs you will set them LOW instead of HIGH. Note: for this particular LED, the wiring shares a common anode (+), which means to This code will step through the six primary and secondary colors, plus white and black. Serial.println("Basic Color Mixing w/ a Common Cathode RGB LED") while (!Serial) // Comment out to wait for serial port to connect to Serial Monitor. Serial.begin(9600) //initialize Serial Monitor Create integer variables for our LED pins: #define DEBUG 1 //1 = LEDs w/ serial output debug mode, comment one of these lines out using a syntax for a single line comment: // in various combinations to create eight primary and secondary colors. This example uses digitalWrite() to turn the three LEDs on and off This example uses a tri-color, also known as an RGB This code is released under the MIT License () Written by: Gella and Ho Yun "Bobby" ChanĬreate primary and secondary colors on the tri-color (Red/Green/Blue) LilyPad Tri-Color LED: Basic Color Mixing Select LilyPad USB Plus if following along with the LilyPad ProtoSnap Plus.Ĭopy and paste the following code into the Arduino IDE and upload it to your LilyPad Arduino. The LilyPad Arduino Simple, LilyPad Arduino, and LilyPad Development Board, and Development Board Simple all use a LilyPad ATmega 328. Choose LilyPad Arduino USB if using a LilyPad Arduino USB. Upload the following code to your LilyPad Arduino, making sure to select the correct LilyPad board from the drop down menu below.
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