/*Use a rising variable for the brightness of one of Buzz's LED eyes
Only LED pins 3,5,6, and 9 work with analogWrite on Buzz, 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 40
void setup() {
pinMode(3,OUTPUT); //LED
}
void loop() {
analogWrite(3,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
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Quiz
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1. Which syntax ends the entire 'void loop' function?
