4_5 Random Motor Buzz Strength

Random Motor Buzz Strength

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!

/* Buzz the motor at random strength that changes every second */ void setup(){ pinMode(3,OUTPUT); //Motor } void loop(){ //AnalogWrite works on pins 3,9,10, and 11 on Code Lab Mini analogWrite(3,random(1,256)); //analogWrite a random value from 1-255 delay(1000); // delay 1000 milliseconds (1 second) with the motor buzzing } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

 

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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 delay between the random buzzes. What happens when you make the delay really, really small?

Try to activate the random buzzes while you hold down a button and make the motor stop when you release the button. This will take an 'if-else' statement.