4_2 Random Beep Delays

Random Beep Delays

Code

The code in the editor below is ready to run! Plug Code Lab Mini 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.

Restore 12 14 18 24 30

Monitor Upload Your Code!

/* Beep the speaker with random delays between the beeps */ void setup(){ pinMode(2,OUTPUT); //speaker } void loop(){ tone(2,500); //start playing a tone of 500 hertz on the speaker delay(random(10,2000)); // delay between 10 and 1999 milliseconds (0.01 to almost 2 seconds) noTone(2); //stop the tone delay(random(10,2000)); //delay between 10 and 1999 milliseconds before starting the loop again //Note: each time 'random()' runs, it selects a new number, so every loop will be different! } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

 

It looks like your computer isn't set up to code yet. Setup My Computer

Success!

Compile errors:

Serial port monitor: Input: Send Close

 

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 the range of delays the random function can ‘choose from’ between the beeps.

Change the tone that plays on the speaker.