Button Raises Tone

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.


/* Pressing a button raises the tone that Buzz chirps */ int pitch = 40; //create a variable named 'pitch' that is an integer (whole number) and starting value of 40 (where the speaker starts to sound good) void setup(){ pinMode(2,OUTPUT); //speaker pinMode(13,INPUT_PULLUP); //button } void loop(){ tone(2,pitch); //play a hertz value equal to 'pitch' on the speaker if(digitalRead(13)==LOW){ //If button 13 is pressed pitch++; //raise pitch by one. With no delays, pitch will rise quickly! } //Note: You'll have to unplug Buzz to make the pitch go low again! } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense
 

Walkthrough Video

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Challenges

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Concepts

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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?