7_2 Rising Brightness Variable

Rising Brightness Variable

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.


/*Use a rising variable for the brightness of an LED Only LED pins 9, 10, and 11 work with analogWrite on Code Lab Mini, so you must use those pins. */ int brightness = 0; //Create a variable called 'brightness' that is an integer (whole number) and has a starting value of 0 void setup() { pinMode(9,OUTPUT); //LED color } void loop() { analogWrite(9,brightness); //set the brightness of the LED equal to the variable brightness++; //Increase the variable by 1 delay(50); // delay 0.05 seconds before the loop starts again. /*analogWrite has a maximum value of 255, so the code treats 256 like it equals 1, 257 like it equals 2, and so on. The write "overflows" and resets the brightness */ } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense
 

Walkthrough Video

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Challenges

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