Jitter the Motor and Wink Buzz's Eye

Code

The code in the editor below is ready to run! Plug Buzz 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.

// Wink one of Buzz's eyes while jittering the motor on and off void setup(){ pinMode(3,OUTPUT); //LED light pinMode(9,OUTPUT); //Motor } void loop(){ digitalWrite(3,HIGH); //Turn on the LED digitalWrite(9,HIGH); //Turn on the motor delay(1000); //Wait 1000 milliseconds (one second) with the light & motor on digitalWrite(3,LOW); //Turn off the LED digitalWrite(9,LOW); //Turn off the motor 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!

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!

Change up the digital Write commands so Buzz only jitters when his LED eye is off.

Add Buzz's other eye to the program so they blink together.

Add a pinMode function and a tone function and a noTone function to beep along with Buzz's blinks and jitter.

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?

semicolon ;
parentheses )
closing curly brace }

2. Which syntax ends a single code command?

semicolon ;
closing curly brace }
period .

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