Turn Knob Controls Blink Delay

Code

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/* Use the turn knob to control the delay between blinks of an LED */ void setup() { pinMode(A0,INPUT); //turn knob pinMode(8,OUTPUT); //LED } void loop() { int wait = analogRead(A0);//create a variable with the name 'wait' and a value equal to the turn knob reading (range of 0-1024) digitalWrite(8,HIGH); //turn on the LED delay(wait); //delay for 'wait' amount of time. This ranges from 0-1024 milliseconds digitalWrite(8,LOW); //turn off the LED delay(wait); //delay for 'wait' amount of time before starting the loop over again } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense
 

Walkthrough Video

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Challenges

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Quiz

If you're having trouble, try to run an experimental program or look at the example code to help you find the answer.

1. Which syntax ends the entire 'void loop' function?




2. Which syntax ends a single code command?