Mix Colors on the RGB LED Lights

Code

The code in the editor below is ready to run! Plug your Code Lab in to your computer's USB port with the cable 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.


/* Power multiple legs of the multicolor (RGB) LED light on and off to create blended colors */ void setup(){ pinMode(5,OUTPUT); //set the 5,6,7 ports to receive power pinMode(6,OUTPUT); pinMode(7,OUTPUT); } void loop(){ digitalWrite(5,HIGH); //turn on the first color using port 5 delay(1000); //Wait 1000 milliseconds (1 second) with only one color on. digitalWrite(6,HIGH); //turn on a second color using port 6 delay(1000); //Wait 1000 milliseconds digitalWrite(7,HIGH); //turn on a third color using port 7 delay(1000); //Wait 1000 milliseconds digitalWrite(5,LOW); //turn off the first color on port 5 delay(1000); //Wait 1000 milliseconds digitalWrite(6,LOW); //turn off the second color on port 6 delay(1000); //Wait 1000 milliseconds digitalWrite(7,LOW); //turn off the third color on port 7 delay(1000); //Wait 1000 milliseconds before starting the loop over } // (c) 2021 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!

Video Notes for Code Lab Users:

  • You are using port 5 instead of 2, port 6 instead of 3, and port 4 instead of 7 as the video says.

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!

Concepts

These are the new code concepts covered in this example program. To become a great coder, read through these concepts to learn new vocabulary.

Quiz

If you're having trouble, try to run an experimental program or look at the example code to help you find the answer.

1. Which syntax ends the entire 'void loop' function?




2. Which syntax ends a single code command?