Press a Button to Play a 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.

//Press a button to make Buzz chirp a tone void setup(){ pinMode(2,OUTPUT); //Speaker pinMode(11,INPUT_PULLUP); //Button } void loop(){ if(digitalRead(11)==LOW){ //If the button reading is LOW (the button is pressed) tone(2,600); //Play a tone of 600 hertz } //You have to unplug Buzz to get the tone to stop! } // (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 which button triggers the tone to start playing.

Add delay and tone functions so that when you press the button Buzz will chirp 3 rising tones for 1 second each [delay(1000);] before settling on the highest tone.

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.

Back to Projects Grid