2_3 Beep and Blink Rainbow

Beep and Blink Rainbow

Code

The code in the editor below is ready to run! Plug Code Lab Mini in to your computer's USB port, make sure that your Code Lab Mini Rainbow Add-On (sold separately) is attached, and hit 'Upload Your Code!' to see what it does. Change something in the code, like a delay or pin number. Try to add something new to the program - it's yours to tinker with! You can always press the 'Restore' button to return the code to the working example.

If you haven't set up your Code Lab Mini Rainbow Add-On yet, visit Chapter 0 to watch a video showing you how to do that.


/* Blink Code Lab Mini's rainbow on and off while it plays a tone */ #include "LEDStrip.h" //The LEDStrip.h library gives your code access to special functions exclusive to the LED Strip LEDStrip rainbow = LEDStrip(15, 13, A5); //Set up the LED rainbow. These values won't change with Code Lab Mini. void setup() { pinMode(2,OUTPUT); //Speaker } void loop() { rainbow.setPixel(rainbow.All, 50); //use rainbow.All to select all the pixels, then set the color value between 0 and 299 tone(2,500); //Play a tone of 500 hertz rainbow.draw(); //Send the setPixel values to Code Lab Mini's rainbow delay(1000); //Wait 1000 milliseconds (1 second) with the tone of 500 playing rainbow.clear(); //Clear all the pixels - make them have no color rainbow.draw(); //Send the .clear() function to the rainbow. noTone(2); //Stop the tone delay(1000); //Wait 1000 milliseconds before restarting the loop } //(c)2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense
 

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!

Challenges

Can you complete the challenge? 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!